Watts to Amps Calculator
LED Lighting Supply’s free current conversion tool is ideal for electrical contractors who need to calculate wattage and voltage to amps quickly. This helps select the proper wire gauge for the electrical system, prevents potential safety hazards during installation, and ensures an optimal power factor through electric current.
Power (W)
Voltage (V)
Current
A
mA
Watts to Amps Conversion Table
| Power (W) | Voltage (V) | Current (A) | Current (mA) |
|---|---|---|---|
| 1 | 1 | 1 | 1000 |
| 10 | 10 | 1 | 1000 |
| 20 | 10 | 2 | 2000 |
| 50 | 50 | 1 | 1000 |
| 100 | 100 | 1 | 1000 |
| 1000 | 100 | 10 | 10000 |
| 2000 | 200 | 10 | 10000 |
| 5000 | 500 | 10 | 10000 |
| 10000 | 1000 | 10 | 10000 |
Typical Power Factor in Lighting
| Lighting Device | Typical Power Factor |
|---|---|
| Incandescent Bulbs | 1.0 |
| Halogen Bulbs | 1.0 |
| Compact Fluorescent Lamps (CFLs) | 0.5 - 0.6 |
| Fluorescent Tubes | 0.5 - 0.9 |
| LED Lamps | 0.9 - 1.0 |
| High-Pressure Sodium (HPS) | 0.9 - 1.0 |
| Metal Halide | 0.8 - 1.0 |
| Induction Lamps | 0.9 - 1.0 |
| Neon Signs | 0.6 - 0.7 |
| HID (High Intensity Discharge) | 0.8 - 0.9 |
Watts to Amps (A) Conversion Formula:
Amps (A) is a measurement of electric charge or the strength of an electric current. To calculate amps, use our amps calculator or divide the Watts (W) by the Volts (V).
- Amps = Watts (W) / Volts (V)
Basic Equations:
Power Conversion
Use this formula to calculate Watts from Voltage and Current:
- Power (W) = Voltage (V) × Current (A)
Amps Current Conversion
Use this formula to calculate current from Watts and Volts:
- Current (A) = Power (W) ÷ Voltage (V)
Milliamperes Conversion Formula
Milliamperes current s a measurement of electric charge or the strength of small electric currents. It's equal to 1 ampere (A) divided by 1,000. Use this formula to convert current from Power and Voltage:
- Current (mA) = Current (A) × 1000