Nusselt Number
Calculate Nusselt Number instantly with the exact formula and a worked example. Free online calculator — no signup.
Nusselt Number
h, W/(m²·K)
L, m
k, W/(m·K)
Nu (Nusselt)
166.6667
Nu (Nusselt)
166,667
More about: Nusselt Number
What it calculates
The “Nusselt Number” calculator computes Nu (Nusselt) from 3 parameters: h, w/(m²·k), l, m, k, w/(m·k).
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters h, W/(m²·K) = 100, L, m = 1, k, W/(m·K) = 0.6 the result is 166.67 (Nu = h·L/k).
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
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