Kuinka laskea Amps to Watts
Mikä on Amps to Watts?
An amps to watts converter calculates electrical power from current and voltage. Used to determine the wattage of appliances and the capacity needed from a power source.
Kaava
W (DC) = A × V; W (AC) = A × V × PF
- A
- Current (A) — Electrical current in amperes
- V
- Voltage (V) — Electrical potential in volts
- W
- Power (W) — Electrical power in watts
- PF
- Power factor ((dimensionless)) — For AC loads; typically 0.8–1.0
Vaiheittainen opas
- 1Watts = Amps × Volts (DC)
- 2Watts = Amps × Volts × Power Factor (AC)
- 3Power factor for motors is typically 0.8–0.95
- 4Standard voltages: 120V US, 230V EU, 240V UK
Ratkaistut esimerkit
Syöte
13 amps at 240V
Tulos
3,120 watts (standard UK plug max)
Syöte
20 amps at 120V
Tulos
2,400 watts (US circuit)
Syöte
32 amps at 240V
Tulos
7,680 watts (EV charger)
Usein kysytyt kysymykset
How do I calculate watts from amps?
Multiply amps by volts. In AC, also multiply by power factor. Example: 10 A × 240 V = 2,400 W.
Why does my kettle pull more amps than my TV?
The kettle uses more power (watts). At the same voltage, higher wattage means higher amps. Ohm's law: W = V × A.
What's a safe amperage for a standard outlet?
In the US, 15–20 A circuit breakers are standard, supporting 1,800–2,400 W at 120 V. In UK, 13 A plugs support 3,120 W at 240 V.
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