Building tool
Pipe Volume Calculator
Calculate the internal volume, gallons, liters, and fluid weight inside a pipe run.
Runs in your browserResult
- Internal volume
- 2.182 cu ft
- US gallons
- 16.32
- Liters
- 61.78
- Fluid weight
- 136.19 lb
- Flush / fill time
- 1.63 min
Use actual inside diameter, not nominal pipe size. Fittings, valves, slope, and incomplete fill change the result.
How to use this pipe volume calculator
- Measure the project, enter the dimensions in the units shown, and add the waste, spacing, coverage, or material settings that apply.
- Review the calculated totals, units, and assumptions. Check the inputs and units before relying on the result.
- Change one input at a time to compare another case, then copy or save the result you plan to use.
About this pipe volume calculator
The Pipe Volume Calculator lets you calculate the internal volume, gallons, liters, and fluid weight inside a pipe run. The controls cover only the inputs needed for the result.
You can also use it to compare results after changing one input.
Example
Enter the pipe's inside diameter and run length to calculate cubic volume, gallons, liters, and water weight.
Common uses
- → calculate the internal volume, gallons, liters, and fluid weight inside a pipe run
- → compare results after changing one input
- → save an estimate for planning or comparison