Work out pipe weight instantly with clear inputs, formula shown and shareable results.
Pipe weight per metre is the annular area times density, which simplifies neatly to pi x (OD - t) x t x density because the mean diameter of the wall is OD minus t. The water-filled weight matters for pipe supports, since a large water main can weigh more full of water than it does empty.
Unit weight
kg/m = pi x (OD - t) x t x density / 10^6 (mm, kg/m³)
Bore volume
Litres = pi/4 x ID² x length, with ID in metres
kg/m = pi x (OD - t) x t x density / 10^6 (mm, kg/m³). Pipe weight per metre is the annular area times density, which simplifies neatly to pi x (OD - t) x t x density because the mean diameter of the wall is OD minus t.
Full, plus any insulation and test water. Hydrostatic testing often produces the heaviest condition the supports will ever see.
This calculator takes 4 inputs: Outside diameter, Wall thickness, Pipe length, Material density. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.