Current Calculator
Calculate current from load and voltage.
Project & Input Data
Your project criterion: enter the value from your governing code, specification or approved supplier data. No standard value is assumed.
Your project criterion: enter the value from your governing code, specification or approved supplier data. No standard value is assumed.
Engineering Assumptions
Direct calculation — Electrical current equation
- Voltage and power factor are user-entered from the actual system data.
- All percentages and inputs are user-defined; the calculation is purely arithmetic and assumes no particular code or specification.
Formula Summary
- I(A) = P(W) ÷ (k × V × PF), k=1 single-phase, k=√3 three-phase
- I(A) = S(VA) ÷ (k × V)
Results
Enter your data and press Calculate to see the results.
Engineering Insight
Enter either the active power, the apparent power, or both to compare the two computations.
Recommended Action
Use the resulting current as the basis for cable and breaker sizing after applying your project's own safety factors.
Next step
This calculator is fully usable as it is. Professional adds saved projects, calculation history and PDF/Excel reports; Premium adds the integrated workflows and the BOQ generator.