Calculate liters by size. How to calculate the volume of displacement in an aquarium. Choosing the size of a home aquarium

Carton serves as a popular container for packaging goods and various items for the purpose of transporting or storing them. The corrugated packaging market includes both consumer and individual packaging, as well as transport packaging. This type of packaging is ergonomic and environmentally friendly.

The production of cardboard packaging using high-tech equipment makes it possible to produce containers of various sizes and designs. For example, a well-known supplier of cardboard and paper boxes is the company “Container for Goods”, which successfully sells its products throughout Russia.

To correctly determine the capacity and required container dimensions for cargo, you should calculate the volume of the box.

Cutting line :)

How to calculate the volume of a box in M3

When packing and transporting goods, entrepreneurs wonder how to do it correctly in order to save time and money. Calculation of container volume is important point in delivery. Having studied all the nuances, you can choose the required box size.

Use it to calculate the volume of a box in the shape of a cube or parallelepiped. It will help speed up the settlement process.

The cargo that needs to be placed in the container can be of a simple or complex configuration. The dimensions of the box should be 8-10 mm larger than the most protruding points of the load. This is necessary so that the item fits into the container without difficulty.

External dimensions are used when calculating the volume of boxes in order to correctly fill the space in the back of a vehicle for transportation. They are also needed to calculate the area and volume of the warehouse required to store them.

First, measure the length (a) and width (b) of the box. To do this, we will use a tape measure or ruler. The result can be recorded and converted into meters. We will use international system SI measurements. According to it, the volume of the container is calculated in cubic meters (m3). For containers whose sides are less than a meter, it is more convenient to take measurements in centimeters or millimeters. It must be taken into account that the dimensions of the cargo and the box must be in the same units of measurement. For square boxes, the length is equal to the width.

Then we will measure the height (h) of the existing container ─ the distance from the bottom flap of the box to the top.

If you made measurements in millimeters, and the result must be obtained in m3, we convert each number to m. For example, there is data:

• a=300 mm;
• b=250 mm;
• h=150 mm.

Considering that 1 m = 1000 m, let’s convert these values ​​into meters and then substitute them into the formula.

• a=300/1000=0.3 m;
• b=250/1000=0.25 m;
• h=150/1000=0.15 m.

Formulas

• V=a*b*h, where:
• a – base length (m),
• b – base width (m),
• h – height (m),
• V - volume (m3).

Using the formula for calculating the volume of a box we get:

V=a*b*h =0.3*0.25*0.15=0.0112 m 3.

This method can be used when calculating the volume of a parallelepiped, that is, for rectangular and square boxes.

Calculating the volume of a box in liters

When transporting small or bulk goods, they are also packed in boxes. Considering that such items and materials occupy the entire volume of the container, you need to know their quantity in liters. If you are interested in how to calculate the volume of a box in liters, determine the displacement as follows:

we find the cubic capacity V=a*b*h =0.3*0.25*0.15=0.0112 m 3 ;

knowing the equality: 1 m 3 = 1000 l, we convert the resulting value into liters: V = 0.0112 * 1000 = 1.2 l.

Box base area

The above formulas are used to calculate the volume of containers in the shape of a parallelepiped. For non-standard shapes, the area and volume of the box is calculated using the formula:

• V=S*h, where:
• S – base area (m2)
• h – height (m),
• V - volume (m3).

The formula for the area S of the base of the box (container) must be changed depending on the shape of the container.

S=a*b; S=a 2 =a*a we take it in the case when we have a rectangular or square-shaped cardboard product.

Some goods that require transportation have special parameters.

In such cases, it is necessary to pack the goods in cardboard containers of complex configuration, which have a non-standard shape and an exclusive design that can distinguish its contents from similar products. To do this, you need to know how to calculate the area of ​​a box of a different configuration. We will use formulas to find the area of ​​a polygon: triangle, hexagon and octagon.

S=1/2*a*h

This formula can be used to calculate the area of ​​the base of your container if it has the shape of a triangle. By multiplying the resulting value by the height, you get the volume of the prism-shaped box.

In other cases, look at what shape is at the base of a particular box, take the formula to find its area, and then multiply the result by the height.

Enter dimensions in millimeters:

D– the diameter of the container can be measured with a tape measure. It must be remembered that a diameter is a segment of the greatest length connecting two points on a circle and passing through its center.

H– the liquid level is measured using a meter rod, but if such a tool is not at hand, use a regular wire rod or a wooden strip of suitable length. Observing safety precautions, lower the rod strictly vertically into the tank to the bottom, mark a level on it, remove it and measure with a tape measure. Also define H You can measure the distance from the top of the tank to the surface of the liquid and subtract this indicator from the diameter value.

L– length of the container.

If a drawing is needed in paper form, it is advisable to check the “Black and white drawing” item. You'll get a high-contrast image and can print it without wasting color ink or toner.

Capacity volume– this parameter characterizes the total volume of the tank, i.e. what is the maximum amount of liquid in cubic meters or liters that can fit in it.

Liquid quantity– how much substance is in the tank at the moment.

Free volume allows you to estimate how much liquid can still be poured into the container.

As a result, you receive a calculation of not only the volume of the tank, but also the volume of liquid in an incomplete tank.

Metal products should be periodically painted, then their service life will increase significantly. Knowing front surface area, lateral surface area And total area containers easy to estimate the required quantity paint and varnish materials for processing the entire container or its individual parts.

For everyone who has decided to take the exciting and mysterious path of home aquarium keeping, sooner or later the question arises: what size aquarium should I choose and what size aquarium do I currently have? How to calculate this value, choose the optimal volume and why this is important, we will answer in the article.

Why is it better to calculate the volume yourself?

Of course, you can also contact the consultants of the store where you are going to buy the container. As available, presented in standard sizes: 5, 10, 15, 20, 25, 70, 100 liters, etc. But there is a catch in these meager numbers. They are very exemplary. Firstly, what volume are we talking about: after all, for an aquarium it is actual and useful, which is somewhat smaller (as a rule, the aquarium is not filled to the very edge, lamps are located on the lid, and about five centimeters of soil are placed on the bottom of the aquarium, driftwood is placed , stones, plants). Measurements can be taken on the outer and inner walls, which can significantly affect the volume - glass can reach a thickness of two centimeters.

What does the volume of the aquarium affect?

The volume of the aquarium determines the number of fish (snails, shrimp, frogs, crayfish and other aquatic inhabitants) that can be kept. Their number depends on the size, aggressiveness, territoriality and stress of these animals. Modern world pet stores offer a whole range of products for aquarium lovers: products for softening chlorinated water, for destroying harmful algae, liquid mineral medicines for fish. As a rule, these additives should be applied based on the volume of water. Naturally, it is very important to know exactly which aquarium is right for you - overdose and poisoning of animals must not be allowed.

What you need to measure

To measure the size of an aquarium, you don't need much. Ruler (a sewing centimeter, construction tape - any meter), a calculator and memory restoration of a school course in physics and geometry.

aquarium in liters. Formula for different types of aquarium

This will be easiest if the aquarium is in the shape of a cube or parallelepiped. Before calculating the volume of the aquarium in liters by size, let's write them down in centimeters. Let A be the length of the base, B the width of the base, and C the height of the aquarium. The result of multiplying these values ​​will give us the volume of the aquarium in cubic centimeters. To convert this value to liters, you need to multiply the resulting value by 0.001. That is, the formula looks like:

Volume of a cube-shaped aquarium in liters = A*B*C*0.001.

The cylindrical aquarium type is common (it is especially popular as a marine option). To measure its volume, measure in centimeters the radius of the base (denoted by R) and the height of the wall of the aquarium (denoted by H). Multiply the square of the radius by Pi and the height. The result is the volume of the aquarium in cubic centimeters. How to calculate the volume of an aquarium in liters? Multiplying by 0.001. The formula is converted:

Volume of a cylindrical aquarium in liters = πR^2*H*0.001.

Volume of a spherical aquarium in liters = πR^3*0.001*3/4.

How to calculate the volume of an aquarium in liters in other ways

Of course, you can, using well-known formulas, divide this complex figure into several simple ones, fit it into a cube or ball and, having calculated their volumes, mentally cut off the extra liters. But there is a much simpler and reliable way. To do this, you need a measuring container and, in fact, the “jar” itself (our aquarium). It is logical that the volume of water filling the aquarium will be equal to its capacity. This method is good because it can take into account the volume of soil, large decorative elements, plants, internal filter and other devices already in the aquarium, and, accordingly, give out only the volume of water included in it. The Internet will come to the rescue. There are many online calculators on the network with which it is not difficult to calculate the volume of an aquarium.

Choosing the size of a home aquarium

Now, knowing how to calculate the volume of an aquarium, you can begin this responsible choice. The main mistake that a beginner in this business can make is choosing too small a volume. An aquarium is a kind of ecosystem. There are plants that produce oxygen in the light through the process of photosynthesis, there are fish that scrape harmful algae from the leaves and walls of the vessel, there are snails and shrimp that collect the remains of uneaten food and dead parts of plants. The larger the aquarium, the more complete this ecosystem will be. Therefore, it is not recommended to have aquariums smaller than 50 liters - they will be difficult to care for. Optimal size aquarium - from 100 liters.

And it is better to abandon or have too intricate a shape - the fish in them are more susceptible to stress, and there are fewer opportunities to plant plants. Even banal aquariums with a rectangular base can serve different purposes: low aquariums are chosen for a paludarium (herbal aquarium). Shrimp fish can be various forms, but the most common ones are with a square bottom, “cubes”.

And it is better to abandon aquariums that are round or too intricate in shape - the fish in them are more susceptible to stress, and there are fewer opportunities to plant plants. Even banal aquariums with a rectangular base can serve different purposes: low aquariums are chosen for a paludarium (herbal aquarium). Shrimp tanks can come in a variety of shapes, but the most common are those with a square bottom, “cubes”.

For aquarium fish, a slightly flattened parallelepiped with a height of no more than 70 cm will be good (for fish, the height does not matter, but aquarium plants will not receive enough light and perform an aesthetic function). Thus, the volume, shape and size of the aquarium must be approached with all responsibility and intelligence.

Aquarium - glass vessel, filled with water in which fish and plants live. When looking at an aquarium, a question spontaneously arises for the owner of an apartment or office - how many liters are in this aquarium?

The same question arises when you read the instructions for preventive and curative medications. Therefore, a very interesting and ambiguous question - “How to calculate the volume of an aquarium?”.

Of course, you can calculate it by pouring water out of it with a liter jar, but it is much easier to do this using a formula, and measuring with jars can be left for small round aquariums.

Step-by-step instructions for calculating the displacement of your aquarium:

First, we measure the dimensions of the aquarium being measured, for example: the width of the aquarium is 100 cm, the depth from the front to the back wall is 50 cm, and the height of the aquarium is 60 cm. That is, it turns out:

- 100 cm * 50 cm * 60 cm = 300,000 cubic centimeters;

Now, to get the number of liters, multiply this value by 0.001:

- 300,000 cc. * 0.001 = 300 liters;

As a rule, the height of the filling part of the aquarium is less to avoid water overflows and to take into account the aquarium ties that are closed with a lid. With an aquarium height of 60 cm, as a rule, the ties are glued 3-5 cm lower and the height of the filling part is the same. 5 cm to the screeds at a height of 60 cm is less than 10 percent: Total: It turns out that the estimated volume of the measured aquarium is 300 liters. But this volume is literally calculated - and we need real volume.

– 300 liters – 10% = approximately 270 liters;

We subtract another couple of percent for the volume of the glass, since we measured the aquarium from the outside without taking into account the thickness of the glass.

Total: There are approximately 260 liters of water in the aquarium.

In fact, after placing soil, decorations and fish in the aquarium, they will displace some more water with their weight, but this is little taken into account, since without decoration and fish the aquarium will not be an aquarium.

And yet, in my opinion, the volume of the aquarium is not so significant if it gives you real pleasure. If you need our help in any matters related to aquarium maintenance in Kyiv, or on other issues, please contact us. You will find contact information for contacting us. Waiting for you!

Sometimes it is very important to accurately calculate the volume of water passing through the pipe. For example, when you need to design new system heating. This raises the question: how to calculate the volume of a pipe? This indicator helps to choose the right equipment, for example, size expansion tank. In addition, this indicator is very important when antifreeze is used. It is usually sold in several forms:

• Diluted;
• Undiluted.

The first type can withstand temperatures of 65 degrees. The second one will freeze at -30 degrees. To buy the right amount of antifreeze, you need to know the volume of coolant. In other words, if the volume of liquid is 70 liters, then you can purchase 35 liters of undiluted liquid. It is enough to dilute them, maintaining a proportion of 50–50, and you will get the same 70 liters.

To get accurate data, you need to prepare:

• Calculator;
• Calipers;
• Ruler.

First, the radius is measured, designated by the letter R. It can be:

• Internal;
• External.

The outer radius is necessary to determine the size of the space it will occupy.

To calculate, you need to know the pipe diameter data. It is denoted by the letter D and is calculated using the formula R x 2. The circumference is also determined. Denoted by the letter L.

To calculate the volume of a pipe measured cubic meters(m3), you must first calculate its area.

To obtain an accurate value, you must first calculate the cross-sectional area.
To do this, use the formula:

• S = R x Pi.
• The required area is S;
• Pipe radius – R;
• Pi number is 3.14159265.

The resulting value must be multiplied by the length of the pipeline.

How to find the volume of a pipe using the formula? You only need to know 2 values. The calculation formula itself has the following form:

• V = S x L
• Pipe volume – V;
• Sectional area – S;
• Length – L

For example, we have a metal pipe with a diameter of 0.5 meters and a length of two meters. To carry out the calculation, the size of the outer cross member of the stainless metal is inserted into the formula for calculating the area of ​​the circle. The pipe area will be equal to;

S= (D/2) = 3.14 x (0.5/2) = 0.0625 sq. meters.

The final calculation formula will take the following form:

V = HS = 2 x 0.0625 = 0.125 cu. meters.

This formula calculates the volume of absolutely any pipe. And it doesn’t matter at all what material it is made of. If the pipeline has many components Using this formula, you can calculate separately the volume of each section.

When performing calculations, it is very important that the dimensions are expressed in the same units of measurement. The easiest way to calculate is if all values ​​are converted to square centimeters.

If you use different units of measurement, you can get very questionable results. They will be very far from the real values. When performing constant daily calculations, you can use the calculator's memory by setting a constant value. For example, Pi multiplied by two. This will help to calculate the volume of pipes of different diameters much faster.

Today, you can use ready-made computer programs, in which standard parameters are specified in advance. To perform the calculation, you will only need to enter additional variable values.

Download the program https://yadi.sk/d/_1ZA9Mmf3AJKXy

How to calculate cross-sectional area

If the pipe is round, the cross-sectional area should be calculated using the formula for the area of ​​a circle: S = π*R2. Where R is the radius (internal), π - 3.14. In total, you need to square the radius and multiply it by 3.14.
For example, the cross-sectional area of ​​a pipe with a diameter of 90 mm. We find the radius - 90 mm / 2 = 45 mm. In centimeters this is 4.5 cm. We square it: 4.5 * 4.5 = 2.025 cm2, substitute it into the formula S = 2 * 20.25 cm2 = 40.5 cm2.

The cross-sectional area of ​​a profiled product is calculated using the formula for the area of ​​a rectangle: S = a * b, where a and b are the lengths of the sides of the rectangle. If we consider the cross-section of the profile to be 40 x 50 mm, we get S = 40 mm * 50 mm = 2000 mm2 or 20 cm2 or 0.002 m2.

Calculation of the volume of water in the entire system

To determine such a parameter, it is necessary to substitute the value of the internal radius into the formula. However, a problem immediately appears. How to calculate the total volume of water in the entire pipe heating system, which includes:

• Radiators;
• Expansion tank;
• Heating boiler.

First, the volume of the radiator is calculated. To do this, its technical passport is opened and the volume values ​​of one section are written down. This parameter is multiplied by the number of sections in a particular battery. For example, one is equal to 1.5 liters.

When installed bimetallic radiator, this value is much smaller. The amount of water in the boiler can be found in the device data sheet.

To determine the volume expansion tank, it is filled with a pre-measured amount of liquid.

The volume of pipes is determined very simply. The available data for one meter of a certain diameter simply needs to be multiplied by the length of the entire pipeline.

Note that in the global network and reference literature, you can see special tables. They show approximate product data. The error in the given data is quite small, so the values ​​given in the table can be safely used to calculate the volume of water.

It must be said that when calculating values, you need to take into account some characteristic differences. Metal pipes having large diameter, pass the amount of water significantly less than the same polypropylene pipes.

The reason lies in the smoothness of the surface of the pipes. For steel products it is made with great roughness. PPR pipes do not have roughness on the inner walls. However, steel products have a larger volume of water than other pipes of the same cross-section. Therefore, to make sure that the calculation of the volume of water in the pipes is correct, you need to double-check all the data several times and confirm the result with an online calculator.

Internal volume of a linear meter of pipe in liters - table

The table shows the internal volume of a linear meter of pipe in liters. That is, how much water, antifreeze or other liquid (coolant) is needed to fill the pipeline. The internal diameter of pipes is taken from 4 to 1000 mm.

Inner diameter, mm	Internal volume of 1 m running pipe, liters	Internal volume of 10 m linear pipes, liters
4	0.0126	0.1257
5	0.0196	0.1963
6	0.0283	0.2827
7	0.0385	0.3848
8	0.0503	0.5027
9	0.0636	0.6362
10	0.0785	0.7854
11	0.095	0.9503
12	0.1131	1.131
13	0.1327	1.3273
14	0.1539	1.5394
15	0.1767	1.7671
16	0.2011	2.0106
17	0.227	2.2698
18	0.2545	2.5447
19	0.2835	2.8353
20	0.3142	3.1416
21	0.3464	3.4636
22	0.3801	3.8013
23	0.4155	4.1548
24	0.4524	4.5239
26	0.5309	5.3093
28	0.6158	6.1575
30	0.7069	7.0686
32	0.8042	8.0425
34	0.9079	9.0792
36	1.0179	10.1788
38	1.1341	11.3411
40	1.2566	12.5664
42	1.3854	13.8544
44	1.5205	15.2053
46	1.6619	16.619
48	1.8096	18.0956
50	1.9635	19.635
52	2.1237	21.2372
54	2.2902	22.9022
56	2.463	24.6301
58	2.6421	26.4208
60	2.8274	28.2743
62	3.0191	30.1907
64	3.217	32.1699
66	3.4212	34.2119
68	3.6317	36.3168
70	3.8485	38.4845
72	4.0715	40.715
74	4.3008	43.0084
76	4.5365	45.3646
78	4.7784	47.7836
80	5.0265	50.2655
82	5.281	52.8102
84	5.5418	55.4177
86	5.8088	58.088
88	6.0821	60.8212
90	6.3617	63.6173
92	6.6476	66.4761
94	6.9398	69.3978
96	7.2382	72.3823
98	7.543	75.4296
100	7.854	78.5398
105	8.659	86.5901
110	9.5033	95.0332
115	10.3869	103.8689
120	11.3097	113.0973
125	12.2718	122.7185
130	13.2732	132.7323
135	14.3139	143.1388
140	15.3938	153.938
145	16.513	165.13
150	17.6715	176.7146
160	20.1062	201.0619
170	22.698	226.9801
180	25.4469	254.469
190	28.3529	283.5287
200	31.4159	314.1593
210	34.6361	346.3606
220	38.0133	380.1327
230	41.5476	415.4756
240	45.2389	452.3893
250	49.0874	490.8739
260	53.0929	530.9292
270	57.2555	572.5553
280	61.5752	615.7522
290	66.052	660.5199
300	70.6858	706.8583
320	80.4248	804.2477
340	90.792	907.9203
360	101.7876	1017.876
380	113.4115	1134.1149
400	125.6637	1256.6371
420	138.5442	1385.4424
440	152.0531	1520.5308
460	166.1903	1661.9025
480	180.9557	1809.5574
500	196.3495	1963.4954
520	212.3717	2123.7166
540	229.0221	2290.221
560	246.3009	2463.0086
580	264.2079	2642.0794
600	282.7433	2827.4334
620	301.9071	3019.0705
640	321.6991	3216.9909
660	342.1194	3421.1944
680	363.1681	3631.6811
700	384.8451	3848.451
720	407.1504	4071.5041
740	430.084	4300.8403
760	453.646	4536.4598
780	477.8362	4778.3624
800	502.6548	5026.5482
820	528.1017	5281.0173
840	554.1769	5541.7694
860	580.8805	5808.8048
880	608.2123	6082.1234
900	636.1725	6361.7251
920	664.761	6647.6101
940	693.9778	6939.7782
960	723.8229	7238.2295
980	754.2964	7542.964
1000	785.3982	7853.9816

If you have a specific design or pipe, then the formula above shows how to calculate the exact data for the correct flow of water or other coolant.

Online calculation

http://mozgan.ru/Geometry/VolumeCylinder

Conclusion

To find the exact figure for the coolant consumption of your system, you will have to sit a little. Either search on the Internet or use the calculator that we recommend. Perhaps he can save you time.

If you have a water-type system, then you shouldn’t bother with precise selection of the volume. It is enough to estimate approximately. An accurate calculation is needed more in order not to buy too much and minimize costs. Since many people choose an expensive coolant.