Pipe Volume Reckoner

Summate the volume of a pipage given its inner diameter and length. The calculator will also find how much that volume of water weighs.

How to Find the Volume of a Pipe

The volume of fluid in a piping can be found given the inner bore of the pipage and the length. To estimate pipage volume, use the following formula:

book = π × d2 / 4 × h

Thus, the volume of a pipe is equal to pi times the piping diameter d squared over four, times the length of the piping h.

Illustration showing the parts of a pipe and the formula to calculate pipe volume

This formula is derived from the cylinder volume formula, which can also be used if you know the radius of the pipage.

volume = π × r2 × h

Alternate formula to find pipe volume using radius

Discover the bore and length of the pipe in inches or millimeters. Employ our anxiety and inches reckoner to summate a length in inches or millimeters.

If you're unsure what the inner bore of a pipe is but you know the outer diameter refer to the mutual pipage dimensions tables to detect the most likely inner bore of your pipage.

Enter the length and diameter values into the formula higher up to summate the book of the pipe.

Example: calculate the volume of a 2″ diameter pipe that is 50′ long


length = 50′ × 12 = 600″
book = π × 2two / 4 × 600″
volume = 3.1415 × 4 / 4 × 600″
book = iii.1415 × 1 × 600″
book = 1885 in3

Volume and Weight of H2o for Mutual Pipage Sizes

Volume and weight of water per foot for common pipe sizes
Pipe Size Volume Weight
in inthree/ft gallons/ft lb/ft
1/viii" 0.1473 in3 0.000637 gal 0.005323 lbs
one/4" 0.589 in3 0.00255 gal 0.0213 lbs
three/8" 1.325 in3 0.005737 gal 0.0479 lbs
1/two" 2.356 in3 0.0102 gal 0.0852 lbs
3/4" 5.301 in3 0.0229 gal 0.1916 lbs
1″ 9.425 in3 0.0408 gal 0.3407 lbs
1 one/iv" xiv.726 inthree 0.0637 gal 0.5323 lbs
1 1/ii" 21.206 in3 0.0918 gal 0.7665 lbs
two″ 37.699 inthree 0.1632 gal 1.363 lbs
2 1/ii" 58.905 in3 0.255 gal 2.129 lbs
3″ 84.823 inthree 0.3672 gal 3.066 lbs
4″ 150.8 in3 0.6528 gal v.451 lbs
5″ 235.62 inthree ane.02 gal 8.517 lbs
6″ 339.29 inthree 1.469 gal 12.264 lbs
Volume and weight of water per meter for common metric pipe sizes
Pipe Size Volume Weight
mm mm3/m liters/thou kg/m
half-dozen mm 28,274 mm3 0.0283 l 0.0283 kg
8 mm 50,265 mmiii 0.0503 l 0.0503 kg
x mm 78,540 mm3 0.0785 l 0.0785 kg
fifteen mm 176,715 mmthree 0.1767 l 0.1767 kg
twenty mm 314,159 mm3 0.3142 l 0.3142 kg
25 mm 490,874 mm3 0.4909 l 0.4909 kg
32 mm 804,248 mmiii 0.8042 l 0.8042 kg
40 mm 1,256,637 mm3 1.257 l 1.257 kg
50 mm 1,963,495 mm3 1.963 fifty 1.963 kg
65 mm 3,318,307 mm3 3.318 l three.318 kg
80 mm v,026,548 mm3 five.027 l v.027 kg
100 mm 7,853,982 mm3 7.854 l 7.854 kg
125 mm 12,271,846 mm3 12.272 l 12.272 kg
150 mm 17,671,459 mm3 17.671 50 17.671 kg

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