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Free watts to amps converter with instant bidirectional conversion. Enter watts to get amps or amps to get watts, then set your voltage for accurate electrical calculations.
Last updated: April 16, 2026
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Electrical Formulas
amps = watts / volts and watts = amps x volts
Watts to Amps
1,000 W at 120 V = 8.333333 A
Formula: 1000 / 120 = 8.333333 A
Kilowatts
1 kW
Milliamps
8,333.33 mA
Quick reference
Formula
A = W / V
Ideal for sizing circuit loads and current draw.
Formula
W = A x V
Useful for estimating appliance power consumption.
Includes
kW and mA
Helps with electrical planning and documentation.
At 120V, 1,800W equals 15A.
Input
1,800W @ 120V
Output
15A
This watts to amps converter uses the basic electrical power relationship between watts, amps, and volts. Voltage is required because current changes depending on the circuit voltage.
amps = watts / voltswatts = amps x voltskilowatts = watts / 1000These formulas are standard for quick DC and simplified AC power calculations.
Result: 3,600W at 240V equals 15A
Equivalent power is 3.6kW and current is 15,000mA.
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