Three-Phase Power
Calculate Three-Phase Power instantly with the exact formula and a worked example. Free online calculator — no signup.
Three-Phase Power
U_line, V
I, A
cos φ
3-phase power
11.7779kW
P
11,78 kW
S
13,86 kVA
More about: Three-Phase Power
What it calculates
The “Three-Phase Power” calculator computes 3-phase power in kW from 3 parameters: u_line, v, i, a, cos φ.
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters U_line, V = 400, I, A = 20, cos φ = 0.85 the result is 11.78 kW (P = √3·U·I·cos φ).
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.
- Copy the result or bookmark the page.