Amps to Watts Calculator
Calculate electrical power in watts from current in amps with our comprehensive calculator. Supports DC, AC single-phase, and three-phase systems with power factor adjustment.
Step 1: Electrical Parameters
Understanding System Types
DC systems (batteries, solar panels) use simple multiplication. AC systems require power factor adjustment. Three-phase systems multiply by √3 (approximately 1.732).
Step 2: Advanced Parameters
About Power Factor
Power factor represents the ratio of real power to apparent power in AC systems. Resistive loads (heaters, incandescent bulbs) have PF=1. Inductive loads (motors, transformers) have PF<1.
Power Calculation Results
Calculated Power
Common Appliance Power Comparison
| Appliance | Typical Current (A) | Voltage (V) | Power (W) |
|---|
Power Calculation Formulas
Calculation Formulas
DC Power: P (Watts) = I (Amps) × V (Volts)
AC Single-Phase: P = I × V × PF
AC Three-Phase: P = I × V × PF × √3
Where: P = Power in watts, I = Current in amps, V = Voltage in volts, PF = Power factor (0 to 1), √3 ≈ 1.732
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