Put 80 horsepower into the exact factor of 0.7456998716 and you get 59.65598973 kW. Written out: 80 × 0.7456998716 = 59.6559897266 kilowatts, with no rounding applied until the final display.
59.656 kW is 80 mechanical horsepower and 81.11 metric PS. Put that through a 1,400 kg car at 80% drivetrain efficiency and the energy needed to reach 100 km/h — 540.1 kJ — takes about 11.3 seconds to deliver, which is a floor rather than a real figure because it ignores drag and traction limits.
The result sits 0.344 kW short of 60 kW, so if you need a round figure to quote, 60 kW is the honest nearest one. Plenty of people do this in their head: divide by 1.3 instead of using the exact factor 0.7456998716. At 80 that shortcut gives 61.538462 kilowatts, off by 1.882 kilowatts or about 3.16%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
The formula
80 hp- The quantity being converted
0.7456998716- Exact kilowatts in one horsepower
59.65598973 kW- The converted result
How it works, step by step
- Take the horsepower value, 80.
- Multiply by 0.7456998716, the exact number of kilowatts in one horsepower.
- That gives 59.6559897266 kilowatts.
- Going the other way, divide rather than multiply — 59.65598973 kW ÷ 0.7456998716 brings you back to 80 hp.
Worked examples
Working it through
80 hp × 0.7456998716 = 59.6559897266 kW. One multiplication, with no rounding until the value reaches the screen.
Checking it backwards
59.65598973 kW ÷ 0.7456998716 = 80 hp. Recovering the original number is the fastest way to confirm the factor was not applied upside down.
How to read your score
Frequently asked questions
What is 80 horsepower in kilowatts?
80 horsepower is exactly 59.65598973 kW. Carried to full precision that is 59.6559897266 kilowatts.
How do you convert horsepower to kilowatts?
One step: multiply the horsepower figure by 0.7456998716. Here that is 80 × 0.7456998716 = 59.65598973 kilowatts.
What is 59.65598973 kilowatts back in horsepower?
80 horsepower. Dividing by 0.7456998716 undoes the conversion exactly.
What does 80 hp actually look like?
59.656 kW is 80 mechanical horsepower and 81.11 metric PS. Put that through a 1,400 kg car at 80% drivetrain efficiency and the energy needed to reach 100 km/h — 540.1 kJ — takes about 11.3 seconds to deliver, which is a floor rather than a real figure because it ignores drag and traction limits. Compare it against the surrounding values in the table below.
What is a horsepower?
Mechanical horsepower, defined by James Watt as 550 foot-pounds per second.
What is a kilowatt?
The rating unit for motors, EV chargers and solar arrays.
80 hp in kilowatts — nearby values
| Horsepower | Kilowatts | Unrounded |
|---|---|---|
| 74 hp | 55.18179 | 55.1817905 |
| 75 hp | 55.92749 | 55.92749037 |
| 76 hp | 56.67319 | 56.67319024 |
| 77 hp | 57.41889 | 57.41889011 |
| 78 hp | 58.16459 | 58.16458998 |
| 79 hp | 58.91029 | 58.91028985 |
| 80 hp | 59.65599 | 59.65598973 |
| 81 hp | 60.40169 | 60.4016896 |
| 82 hp | 61.147389 | 61.14738947 |
| 83 hp | 61.893089 | 61.89308934 |
| 84 hp | 62.638789 | 62.63878921 |
| 85 hp | 63.384489 | 63.38448908 |
| 86 hp | 64.130189 | 64.13018896 |
Exact factor: 1 horsepower = 0.745699871582 kilowatts. The row for 80 hp is the value this page is about.