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Watts to Amps Target Sizing Lookups (14 Tools)

Dedicated wattage lookups from 100W to 10,000W. Sizing breakers, copper wire gauges, and continuous load thresholds across 12V, 120V, and 240V.

Primary Governing Equation
I = P / (V × PF) | Sizing = Continuous Load × 125%

Available Calculators (14 Tools)

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Watts-to-Amps Values

100 Watts to Amps Calculator

100W solar panels, laptop chargers, audio equipment.

I = 100 / (V × PF) Open →
Watts-to-Amps Values

300 Watts to Amps Calculator

Portable power stations (Jackery/EcoFlow), gaming PCs, residential solar panels.

I = 300 / (V × PF) Open →
Watts-to-Amps Values

500 Watts to Amps Calculator

Small power inverters, halogen work lights, desktop workstations.

I = 500 / (V × PF) Open →
Watts-to-Amps Values

1000 Watts to Amps Calculator

Microwave ovens, small generators, electric cooktops, vacuum cleaners.

I = 1000 / (V × PF) Open →
Watts-to-Amps Values

1200 Watts to Amps Calculator

Hair dryers, countertop toaster ovens, window air conditioners.

I = 1200 / (V × PF) Open →
Watts-to-Amps Values

1500 Watts to Amps Calculator

Portable electric space heaters, electric kettles, pressure washers.

I = 1500 / (V × PF) = 12.5 Amps at 120V Open →
Watts-to-Amps Values

1800 Watts to Amps Calculator

Heavy power tools, induction burners, commercial blenders.

I = 1800 / 120V = 15.0 Amps (100% max capacity of 15A breaker) Open →
Watts-to-Amps Values

2000 Watts to Amps Calculator

2000W portable inverter generators (Honda EU2200i), RV inverters, large heaters.

I = 2000 / (V × PF) = 16.67A at 120V Open →
Watts-to-Amps Values

2400 Watts to Amps Calculator

Heavy shop tools, table saws, Level 1 EVSE max draw.

I = 2400 / 120V = 20.0 Amps Open →
Watts-to-Amps Values

3000 Watts to Amps Calculator

3000W RV inverters, 3kW generators, small water heaters.

I = 3000 / (V × PF) = 250A at 12V Open →
Watts-to-Amps Values

4000 Watts to Amps Calculator

Electric water heaters, medium portable generators, commercial kitchen warmers.

I = 4000 / 120V = 33.3A Open →
Watts-to-Amps Values

5000 Watts to Amps Calculator

5000W dual-fuel generators, 5kW water heaters, garage unit heaters.

I = 5000 / 120V = 41.67A Open →
Watts-to-Amps Values

7500 Watts to Amps Calculator

7500W whole-house portable generators, large electric sauna heaters.

I = 7500 / 240V = 31.25 Amps Open →
Watts-to-Amps Values

10000 Watts to Amps Calculator (10kW to Amps)

10kW residential standby generators, central heat pump auxiliary electric heat strips.

1-Phase: I = 10000 / 240V = 41.67A Open →