Area & materials
Calculate square metres and estimated material for building, paint and flooring.
数学Fluid mechanics
Relate pipe flow, velocity and diameter; interpret Reynolds and pressure from head.
計算の仕組み
結果だけでなく、仕組みもわかります。
Choose one unknown and the tool calculates flow, velocity or diameter for a circular pipe. It includes Reynolds and hydrostatic pressure from a liquid column.
Q = A * v; A = piD? / 4; Re = rho vD / mu前提と制限
Indicative SI-unit result. It does not calculate head loss or size an installation: losses depend on length, roughness, fittings and valves.
簡単な例
A 100 mm pipe carrying water at 2 m/s conveys approximately 15.71 L/s.
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計算式を公開 · 2026年9月8日更新