Amps to Watts Converter
Convert amperes to watts with voltage. Calculate electrical power from current and voltage.
10 A at 120 V =
1,200 W
Also Equals
1,200
Watts (W)
1.2
Kilowatts (kW)
Formula
Watts = Amps × Volts
10 A × 120 V = 1,200 W
Common Conversions (at 120V)
1 A
= 120 W
5 A
= 600 W
15 A
= 1,800 W
20 A
= 2,400 W
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
📚
Formula Source: NIST Guide to SI Units
by National Institute of Standards
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.