Amps to watts calculator (230 V)
By Sithum Imarsha Last reviewed
10 A at 230 V, power factor 1 works out at 2,300 W: 230 V × 10 A × 1 = 2,300 W.
Your result
Result
2,300 W
230 V × 10 A × 1 = 2,300 W
- You typed
- 10 A at 230 V, power factor 1
- Apparent power (kVA)
- 2.3
- Power factor used
- 1
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Power point checkWithin a standard 10 A power point's rating. Everything on the same power point or power board shares this 10 A. An estimate, not electrical advice.
How we calculated this
- Multiply the volts by the power factor. Amps are the watts divided by that.
- On three phase, the volts are also multiplied by the square root of three before dividing.
- kW is kVA times power factor. An empty voltage means the standard at the meter.
Check the inputs
10 A at 230 V, power factor 1
Use the formula
230 V × 10 A × 1 = 2,300 W
This version starts with 10 A, a standard power point. Type your amps, or pick amps to kW.
Amps to watts: what to know
Official source
- 10 A is 2,300 W at 230 V and 2,400 W at 240 V. That is why power boards are labelled 10 A / 2,400 W (NT WorkSafe).
- A 15 A power point is rated for 3,450 W at 230 V. Its plug has a larger earth pin, so it will not fit a 10 A socket, on purpose (WorkSafe Victoria).
| Amps | At 230 V | At 240 V (WA) | At 400 V three phase | kW at 230 V |
|---|---|---|---|---|
| 1 | 230 W | 240 W | 693 W | 0.23 kW |
| 2.4 | 552 W | 576 W | 1,663 W | 0.55 kW |
| 5 | 1,150 W | 1,200 W | 3,464 W | 1.15 kW |
| 10 | 2,300 W | 2,400 W | 6,928 W | 2.30 kW |
| 12 | 2,760 W | 2,880 W | 8,314 W | 2.76 kW |
| 15 | 3,450 W | 3,600 W | 10,392 W | 3.45 kW |
| 20 | 4,600 W | 4,800 W | 13,856 W | 4.60 kW |
| 32 | 7,360 W | 7,680 W | 22,170 W | 7.36 kW |
- The 10 A and 15 A rows are the two power point ratings. The 20 A and 32 A rows are more than either is rated for: loads like that are usually hardwired on their own circuit. Ask a licensed electrician.
- The 400 V three phase column is the same amps on each of the three phases: 10 A per phase is 6,928 W (√3 × 400 V × 10 A × 1 = 6,928 W), 3.01 times the 230 V figure.
- The 32 A row is the size of a single phase EV wall charger: 7,360 W at 230 V, or 7.36 kW in the kW column.
Every cell is the calculator on this page, run for that row at power factor 1, the figure for a heater or kettle (Estimate). 230 V and 400 V are the standard at the meter in the eastern states and 240 V is the standard in WA (Official source). A standard power point is rated 10 A (Dated third-party source), the larger one 15 A (Official source) and the EV wall charger of the 32 A row is 7,360 W (Estimate). Sources: Wikipedia, AS/NZS 3112: a standard socket-outlet is 230 V at a maximum of 10 A; WorkSafe Victoria safety alert (27 Mar 2012): 15 amp plug tops do not fit 10 amp socket-outlets (read via the Wayback Machine); Worked out as 230 V × 32 A, single phase. An estimate, not electrical advice. Ask a licensed electrician.
What changes the watts for the same amps
216 to 253 V at the meter in Victoria
Victoria's Electricity Distribution Code of Practice gives a voltage range of 216 to 253 V at the meter, taken from AS 61000.3.100.
Source: ESC Electricity Distribution Code of Practice v3.1 (1 Jan 2026), Table 2 notes (from AS 61000.3.100) (Official source). Checked 30 September 2026.
Across that range 10 A is 2,160 W to 2,530 W. 2,300 W is the figure at the 230 V standard, not at every home: type your own voltage if you have measured it.
What homes measure
Measured in homes: 240 to 245 V in Qld, NSW and Vic.
Source: UNSW CEEM, Voltage Analysis of the LV Distribution Network in the Australian NEM, report for the ESB (May 2020): average in Qld (p.59), median in NSW and Vic (pp.69, 82) (Official source). Checked 30 September 2026.
So for a home at a voltage like that, the 240 V column of the table above is the nearer one: 10 A is 2,400 W there, not 2,300 W.
Power factor by type of load
Practical power factors: 1 for a heater, kettle or oven element, 0.85 for an induction motor at full load and 0.73 at 50% load.
Source: Schneider Electric Electrical Installation Guide, Fig. L7, practical values of power factor (read via the Wayback Machine) (Official source). Checked 30 September 2026.
Amps come to fewer watts when the power factor is under 1: 10 A at 230 V is 2,300 W into a heater, 1,955 W into that motor at full load and 1,679 W at 50% load. The table above is at power factor 1, so type the power factor from the label for a motor.
For power points, power factor and 230 or 240 V, see the main watts to amps calculator.