Watts to Amps Calculator: Global Electrical Conversion Tool
The most accurate watts to amps calculator for DC, single-phase, and three-phase systems. Supports power factor and all global voltages.
"Current is power in motion." — Electrical Engineering
How the Watts to Amps Calculator Works
Our watts to amps calculator uses standard formulas:
- DC: I = P / V
- AC Single Phase: I = P / (V × PF)
- AC Three Phase: I = P / (√3 × V × PF)
- PF = 1.0 for resistive loads
Understanding Watts to Amps Calculator Results
You get:
- Current in Amps, mA, or kA
- Formula breakdown
- Cable size recommendation
- Safety warning (if >30A)
Why Use This Watts to Amps Calculator?
Trusted worldwide:
- DC + AC (1Φ & 3Φ)
- Power factor support
- Real-time validation
- Cable size guide
- Mobile-optimized
Real Watts to Amps Calculator Examples
- 1500W Heater @ 120V AC: → 12.5 A
- 10 kW Motor @ 400V 3Φ, PF=0.85: → 17.0 A
- 60W LED @ 12V DC: → 5.0 A
- 50 kW EV Charger @ 240V: → 208 A
Common Voltages by Application
- Home: 120V, 230V, 240V
- Industrial: 400V, 480V, 690V
- EV Charging: 240V, 400V
- Solar: 12V, 24V, 48V DC
Cable Size & Safety Guidelines
- 0–15A: 14 AWG
- 15–20A: 12 AWG
- 20–30A: 10 AWG
- >30A: Consult electrician
Get Started with Watts to Amps Calculator
- Enter Power (W)
- Enter Voltage (V)
- Select System & PF
- Choose Output Unit
- View Instant Result
Run Your Watts to Amps Calculator Now
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