Piping · Internal capacity
Calculate fluid volume inside pipe.
Use verified inside diameter and measured length to convert one or more equal pipe runs into US gallons, liters, cubic feet, weight, and editable fluid cost.
← Pipe length →↕ Inside diameterFluid-filled bore
← Actual inside diameter →↕ Fill depth fractionInternal cross-section
1 Measure internal pipe geometry
2 Enter fluid properties
Transparent calculation
Circular bore area × pipe length × run count.
The fill percentage scales the full-bore volume. Conversions use 7.48051948 US gallons per cubic foot and 3.785411784 liters per US gallon.