billycalc

Froude Number

Calculate Froude Number instantly with the exact formula and a worked example. Free online calculator — no signup.

Froude Number

v, m/s
L, m
Fr (Froude)
1.1288
Fr = v/√(g·L)Calculate Froude Number instantly with the exact formula and a worked example. Free online calculator — no signup.
Fr (Froude)
1,1288
Mode
Supercritical

More about: Froude Number

What it calculates

The “Froude Number” calculator computes Fr (Froude) from 2 parameters: v, m/s, l, m.

A standard physics formula used in educational and engineering tasks.

Example calculation

With parameters v, m/s = 5, L, m = 2 the result is 1.13 (Fr = v/√(g·L)).

How to use

  1. Enter the parameter values — every field above is adjustable with a slider.
  2. The result and related metrics are calculated automatically as you type.
  3. Use the additional metrics shown (if any) where needed.
  4. Copy the result or bookmark the page.

Related calculators