Pipe Volume Calculator

Determine the internal liquid capacity of any pipe or hose in Liters, US Gallons, or Cubic Feet.

Inner Diameter (Inches) 4 in

1 in 2 in 4 in 6 in

Pipe Length (Feet) 100 ft

20 ft 50 ft 100 ft 250 ft

Liquid Capacity

65.3 US Gallons

Cubic Feet

Water Weight

Construction

Frequently Asked Questions

Understanding pipe volume calculations.

The pipe is treated as a cylinder. Internal volume = π × (Inner Radius in ft)² × (Length in ft). 1 cubic foot equals ~28.317 liters or 7.48 gallons.

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