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Power Converter

Convert between watts, kilowatts, megawatts, horsepower and BTU/hr - instantly.

UnitValue
Use Cases

When to Convert Power

Car Engine Power

Convert engine specifications between BHP/hp and kW for comparing international vehicles.

Electricity & Solar

Understand solar panel wattage and household appliance consumption in kW.

Air Conditioners

Convert AC capacity between BTU/hr, kW and tonnage for sizing and comparison.

Motors & Pumps

Convert motor ratings between hp and kW for industrial and agricultural pump selection.

Wind & Hydro Energy

Compare renewable energy plant capacities in MW or GW with conventional plants.

Physics Homework

Convert power in problems involving work, energy and time between standard units.

FAQ

Power Conversion Questions

1 mechanical hp = 745.69987 W. 1 electrical hp = 746 W (used for electric motors). In India, motor ratings often use kW but spec sheets sometimes list hp.

1 ton of refrigeration = 12,000 BTU/hr = 3.517 kW. A 1.5-ton AC = 18,000 BTU/hr = 5.28 kW. This "ton" refers to the heat absorbed by melting 1 short ton of ice in 24 hours.

Multiply kW by 1.341 to get mechanical hp. Example: a 5 kW motor = 5 × 1.341 = 6.7 hp. Equivalently, 1 hp = 0.7457 kW.

1 gigawatt (GW) = 1,000 MW = 1,000,000 kW = 1 billion watts. India's total installed electricity generation capacity is over 900 GW. Large power plants are typically 500–1,000 MW.

Power is the rate of energy transfer (W = J/s). Energy is power × time (kWh = kW × hours). Your electricity bill is in kWh (energy), but your AC is rated in kW (power). Running a 2 kW AC for 3 hours uses 6 kWh.