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Calculator Soup® Online Calculator Resource Calculators > Construction > Tank Volume Calculator
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Tank Volume Calculator Tank Schematic: Horizontal Cylinder
Tank Volume & Fill Calculator Tank Type: Horizontal Cylinder (inside dimensions) Feet
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Length (l) = Diameter (d) = Filled Depth (f) =
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Estimate the total and filled volumes of tanks such as oil tanks and water tanks. Assumes inside dimensions of the tank.
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*Actual fill volumes will differ. Tank volume calculations are based on tank geometries shown below. These tank shapes are calculated assuming exact geometric solid shapes such as cylinders, circles and spheres. Actual water and oil tanks may not be perfect geometric shapes or might have other features not accounted for here so, these calculations should only be considered estimates.
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Methods to calculate the volume of tanks and the volume of a liquid inside a tank.
These calculations will give you cubic measures such as ft3 or m3 depending on your units of measure. Total volume of a cylinder shaped tank is the area, A, of the circular end times the length, l. A = r2 where r is the radius which is equal to 1/2 the diameter or d/2. Therefore: V(tank) = r2l
Horizontal Cylinder Tank
Calculate the filled volume of a horizontal cylinder tank by first finding the area, A, of a circular segment and multiplying it by the length, l.
Area of the circular segment, the grey shaded area, is A = (1/2)r2( - sin) where = 2*arccos(m/r) and is in radians. Therefore, V(segment) = (1/2)r2( - sin)l. If the fill height f is less than 1/2 of d then we use the segment created from the filled height and V(fill) = V(segment). However, if the fill height f is greater than 1/2 of d then we use the segment that is created by the empty portion of the tank and subtract it from the total volume to get the filled volume; V(fill) = V(tank) V(segment). Total volume of a cylinder shaped tank is the area, A, of the circular end times the height, h. A = r2 where r is the radius which is equal to d/2. Therefore: V(tank) = r2h
Vertical Cylinder Tank
The filled volume of a vertical cylinder tank is just a shorter cylinder with the same radius, r, and diameter, d, but height is now the fill height or f. Therefore: V(fill) = r2f
Total volume of a rectangular prism shaped tank is length times width times height. Therefore, V(tank) = lwh
Rectangle Tank
The filled volume of a rectangular tank is just a shorter height with the same length and width. The new height is the fill height or f. Therefore: V(fill) = lwf
Volume of an oval tank is calculated by finding the area, A, of the end, which is the shape of a stadium, and multiplying it by the length, l. A = r2 + 2ra and it can be proven that r = h/2 and a = w - h where w>h must always be true. Therefore: V(tank) = (r2 + 2ra)l
Horizontal Oval Tank
Volume of fill of a horizontal oval tank is best calculated if we assume it is 2 halves of a cylinder separated by a rectangular tank. We then calculate fill volume of 1) a Horizontal Cylinder Tank where l = l, f = f, and diameter d = h, and 2) a Rectangle Tank where l = l, f = f, and rectangle width w is a = w - h of the oval tank. V(fill) = V(fill-horizontal-cylinder) + V(fill-rectangle)
To calculate volume of an oval tank find the area, A, of the end, which is the shape of a stadium, and multiply it by the length, l. A = r2 + 2ra and it can be proven that r = w/2 and a = h - w where h>w must always be true. Therefore: V(tank) = (r2 + 2ra)l
Vertical Oval Tank
To calculate fill volume of a vertical oval tank it is best if we assume it is 2 halves of a cylinder separated by a rectangular tank. With r = w/2 = height of the semicircle ends, we can define 3 general fill position areas. Fill, f < r We calculate fill volume using the circular segment method, as in a Horizontal Cylinder Tank, for the filled portion. Fill, f > r and f < (r+a) The filled volume is exactly 1/2 of the cylinder portion plus the volume of fill inside the rectangular portion. Fill, f > (r+a) and f < h We calculate fill volume using the circular segment method, as in a Horizontal Cylinder Tank, for the empty portion. Volume will be V(tank) - V(segment). We treat a capsule as a sphere of diameter d split in half and separated by a cylinder of diameter d and height a. Where r = d/2. V(sphere) = (4/3)r3, and V(cylinder) = r2a, therefore V(capsule) = r2((4/3)r + a)
Horizontal Capsule Tank
Volume of fill for a horizontal capsule is done by using the circular segment method for the Horizontal Cylinder and, with a similar approach, using calculations of a spherical cap for the sphere section of the tank where, V(spherical cap) = (1/3)h2(3R - h) To calculate the volume of a vertical capsule tank treat the capsule as a sphere of diameter d split in half and separated by a cylinder of diameter d and height a. Where r = d/2. V(capsule) = r2((4/3)r + a)
Vertical Capsule Tank
To calculate fill volume of a vertical capsule calculate in a fashion similar to the method used for the Vertical Oval Tank where r = d/2 = height of each hemisphere end. Fill, f < r We calculate fill volume using the spherical cap method, for the filled portion. Fill, f > r and f < (r+a) The filled volume is exactly 1/2 of the sphere portion plus the volume of fill inside the vertical cylinder portion. Fill, f > (r+a) and f < h We calculate fill volume using the spherical cap method for the empty portion. Volume will be V(tank) - V(spherical cap). Cite this content, page or calculator as: Furey, Edward "Tank Volume Calculator"; from https://www.calculatorsoup.com - Online Calculator Resource.
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