2 Amps to Watts
2 A is 460 W at 230 V and 240 W at 120 V (single-phase, power factor 1). Table for DC and three-phase, power factor 0.8, and the formula.
Formula
Worked example
- P = 230 × 2 × 1 = 460 W
- With a power factor of 0.9: P = 230 × 2 × 0.9 = 414 W
On other supplies
| Supply | Voltage | Power at pf 1 | Power at pf 0.8 |
|---|---|---|---|
| DC | 12 V | 24 W | not used |
| DC | 24 V | 48 W | not used |
| DC | 48 V | 96 W | not used |
| Single-phase | 120 V | 240 W | 192 W |
| Single-phase | 230 V | 460 W | 368 W |
| Single-phase | 240 V | 480 W | 384 W |
| Three-phase | 208 V | 720.5 W | 576.4 W |
| Three-phase | 400 V | 1,386 W | 1,109 W |
| Three-phase | 415 V | 1,438 W | 1,150 W |
| Three-phase | 480 V | 1,663 W | 1,330 W |
Three-phase rows use the line-to-line voltage. DC ignores the power factor.
What 2 A looks like
2 A is a small fan, a laptop charger or a light appliance on a 5 A circuit.
This is an estimate of the load current only. Choosing a cable or a breaker also needs the installation method, the ambient temperature, the voltage drop and the rules you work to.
Frequently asked questions
How many watts is 2 amps?
2 A is 460 W on a 230 V single-phase supply and 240 W on 120 V, both with a power factor of 1. The power depends on the voltage, so it is a different answer on every supply.
What if the power factor is not 1?
The real power falls. At 230 V and a power factor of 0.9, 2 A is 414 W. Heaters and filament lamps are close to 1, while motors and many power supplies are lower.
What about a three-phase supply?
2 A on 400 V three-phase at a power factor of 0.8 is 1,109 W. The line voltage is used with the factor √3 (about 1.732).
Related
Amps to Watts CalculatorAmps to kW1 A to W3 A to W5 A to WCurrent ConverterConversion Centre