Free tool · Texas journeyman calculations · no sign-up

Amps, kW and kVA calculator and exam trainer

Calculate current or power for single- or three-phase, with every step shown. The one decision that matters: is there a 1.732 in it or not. Then practice exam-style questions below.

On the Texas exam you get about 4 min 14 s per Calculations question. The trainer below times you against that pace.

Calculator

I = kVA × 1,000 ÷ (1.732 × V)

System Voltage (V, line-to-line) I know the kVA

Try it like the exam

0:00

New question every time. Answer, see the working, and watch your streak.

Ready for the whole Calculations portion?

Current from kW and kVA is one of the question types on the Texas Calculations portion. Our free 20-question diagnostic covers all of them on the 2026 NEC and shows which areas cost you points.

Take the free diagnostic See the full exam pack

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