Watts to amps converter
Convert watts to amps, or amps to watts, at UK mains voltage.
Uses the declared mains voltage for Great Britain of 230 volts.
Show the workings
| Step | Sum | Answer |
|---|---|---|
| Divide the power by the voltage | 3,000 W รท 230 V | 13.043 A |
What this leaves out or assumes
- Mains voltage is taken as 230 volts. The real supply can sit a little above or below that.
- This is for ordinary single-phase household appliances.
Where the figures come from
- Declared voltage of a low voltage electricity supply in Great Britain: 230 V. Source: The Electricity Safety, Quality and Continuity Regulations 2002, regulation 27. Checked 13 November 2026.
The sum
Amps are watts divided by volts. Watts are amps multiplied by volts. Mains electricity in Great Britain is supplied at 230 volts, so divide or multiply by 230.
| Power | Current |
|---|---|
| 100 W | 0.43 A |
| 500 W | 2.17 A |
| 1,000 W | 4.35 A |
| 1,500 W | 6.52 A |
| 2,000 W | 8.7 A |
| 2,500 W | 10.87 A |
| 3,000 W | 13.04 A |
The voltage at your socket can sit a little above or below 230 volts, so treat the answer as close, not exact. This sum is for ordinary household appliances on a single-phase supply.