Poiseuille's Law

Calculate Poiseuille's Law instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.

Radius, m

ΔP, Pa

Length, m

η, Pa·s

Q (quality)

0.003927m³/s

Calculate Poiseuille's Law instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.

A physics calculator based on a standard formula. Enter the parameters to compute the result instantly — for coursework, labs, and engineering tasks.

The calculator computes Q (quality) (m³/s) from parameters:

Example 1

Radius, m = 0.01, ΔP, Pa = 1,000, Length, m = 1, η, Pa·s = 0.001

→ Q (quality): 0.0039 m³/s

Example 2 (×1.5)

Radius, m = 0.015, ΔP, Pa = 1,500, Length, m = 1.5, η, Pa·s = 0.0015

→ Q (quality): 0.0133 m³/s

More about: Poiseuille's Law

The “Poiseuille's Law” calculator computes Q (quality) in m³/s from 4 parameters: radius, m, δp, pa, length, m, η, pa·s.

A standard physics formula used in educational and engineering tasks.

With parameters Radius, m = 0.01, ΔP, Pa = 1,000, Length, m = 1, η, Pa·s = 0.001 the result is 0.0039 m³/s.