Plumbing calculators

Pipe sizing, flow rate, pressure drop and water heater sizing with material + labour costs.

Pipe Volume Calculator

Calculate the internal volume of any pipe in litres or gallons.

Result

Litres
3.801
US gallons
1.004

V = π × (d/2)² × L

Flow Rate Calculator

Convert between L/min, L/s, GPM (US) and GPM (UK) instantly.

Result

L/min
10
L/s
0.167
GPM (US)
2.642
GPM (UK)
2.2