Hp to W Converter – Convert horsepower to watts

This converter applies the exact factor 1 horsepower = 745.6999 watts. Multiply any value in horsepower by 745.6999 to get watts: the worked example 5 hp × 745.6999 = 3,728 W shows the arithmetic in a single line. Watts and kilowatts meter electrical power worldwide, horsepower still sells cars and lawnmowers, and BTU per hour rates heating and cooling — engines, appliances and HVAC meet at this junction. One mechanical horsepower is exactly 745.6998716 W, so car-to-kilowatt comparisons are definition conversions, and 1 kW = 3412.14245 BTU/h closes the HVAC loop. For reverse conversions divide by 745.6999 instead — identical to multiplying by 0.0013410221 — for example 3,728 W ≈ 0.00402307 hp. Quick mini table: 1 hp = 745.7 W; 5 hp = 3,728 W; 10 hp = 7,457 W; 50 hp = 37,285 W; 100 hp = 74,570 W. For feel: a strong kettle draws about 3000 W (≈ 4 hp), a family car peaks near 150 kW (≈ 200 hp), and 9000 BTU/h of cooling is roughly 2.6 kW.

1. 1

   Step 1

   Enter your value in horsepower (hp)

2. 2

   Step 2

   The converter multiplies it by the exact factor 745.6999

3. 3

   Step 3

   Read the result in watts (W)

4. 4

   Step 4

   Hit swap to convert watts back to horsepower instantly

• 1

  Car anchor: 100 kW ≈ 134 hp; 200 hp ≈ 149 kW

• 2

  kW × 3412.14245 = BTU/h for AC and heater quotes

• 3

  PS (German spec sheets) = 0.986 hp — nearly equal but not exact

• 4

  Electric motors quote kW: multiply by 1.34 for US hp comparisons

• Using metric hp (735.49875 W) where mechanical hp (745.6998716 W) applies — a 1.4% drift

• Reading boiler "input BTU" as output capacity without efficiency losses

• Quoting PS and hp as if identical on translated spec sheets