Watts to Amps Calculator (and Amps to Watts)
Watts to amps calculator: convert power to current (or current to power) for DC, single-phase and three-phase AC, with power factor.
I = PV · PF (1φ) · I = P√3 · V · PF (3φ)
How to use this calculator
- Type your input in the box.
- The result updates as you type.
- Use “Copy result” or “Copy link” to share it.
DC: I = P ÷ V. Single-phase AC: I = P ÷ (V × PF). Three-phase: I = P ÷ (√3 × V × PF). Resistive loads such as heaters have PF = 1.
Frequently asked questions
1,500 W at 120 V?
12.5 A.
Related calculators
- Internet Speed Converter (Mbps ⇄ MB/s)
- Grams to Cups Converter (Baking)
- Color Converter (HEX, RGB, HSL, CMYK)
- Shoe Size Converter (US, UK, EU, cm)
- Height Converter (cm to Feet and Inches)
- PPM Converter (ppm ⇄ %, ppb, mg/L)
- Length Converter
- Weight & Mass Converter
Last updated: · Report an error