Conversor de Potencia

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Power references

From an LED bulb to a nuclear reactor

10 W

0.013 HP

LED bulb

Equivalent to 60 W incandescent

45 W

0.06 HP

Laptop

Standard charger

1,000 W

1.34 HP

Microwave

Standard power

110 kW

147 HP

Car engine

Average gasoline car

283 kW

380 HP

Electric car

Tesla Model 3 Long Range

1 GW

1.34M HP

Nuclear plant

A typical reactor

Reference table

Device / Engine	Watts (W)	HP	kW
Modern LED bulb	10	0.013	0.01
Ceiling fan	60	0.08	0.06
Laptop with charger	45	0.06	0.045
Home microwave	1,000	1.34	1
Average gasoline car	110,000	147.5	110
Tesla Model 3 Long Range	283,000	379.5	283
Nuclear reactor (typical)	1,000,000,000	1,341,022	1,000,000

Conversion formulas

W → HP

HP = W ÷ 745.7 Example: 1,000 W = 1.341 HP

kW → W / HP

W = kW × 1,000 HP = kW × 1.341

About the units

Watt. SI unit of power. 1 W = 1 joule per second. Named after James Watt. Used in electricity and household appliances.

Horsepower. Imperial unit. 1 HP = 745.7 W. Historically: the power of one horse. Used in vehicle engines and machinery.

Kilowatt. 1 kW = 1,000 W. Used in appliances, generators and electricity consumption. 1 kW for 1 hour = 1 kWh (billing unit).

Quick tips

kW → HP: multiply by 1.34 (or by 4/3 as an approximation).
100 HP ≈ 74.5 kW — practical rule for comparing engines.
Your electricity bill uses kWh: power (kW) × time (h).

Interesting fact

James Watt defined "horsepower" in 1782 to compare his steam engines with the work of mine horses. 1 HP was defined as the work a horse could do in one minute moving 33,000 foot-pounds.