The short answer: 80 kilowatts comes to 107.2817672 hp. That is 80 multiplied by 1.34102209, the factor fixed by definition, carried to full precision before anything is rounded for display.
80 kW is 107.3 mechanical horsepower and 108.8 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 8.44 seconds to deliver, which is a floor rather than a real figure because it ignores drag and traction limits.
The result sits 2.718 hp short of 110 hp, so if you need a round figure to quote, 110 hp is the honest nearest one. Plenty of people do this in their head: multiply by 1.3 instead of using the exact factor 1.34102209. At 80 that shortcut gives 104 horsepower, off by 3.282 horsepower or about 3.06%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
The formula
80 kW- The quantity being converted
1.34102209- Exact horsepower in one kilowatt
107.2817672 hp- The converted result
How it works, step by step
- Take the kilowatt value, 80.
- Scale it by 1.34102209 — that is how many horsepower fit in a single kilowatt.
- That gives 107.281767168 horsepower.
- Going the other way, divide rather than multiply — 107.2817672 hp ÷ 1.34102209 brings you back to 80 kW.
Worked examples
Step by step
Because this is a straight proportion, 80 kW × 1.34102209 = 107.281767168 hp — no offset, no second term, nothing else to account for.
Checking it backwards
Divide the answer back: 107.2817672 hp ÷ 1.34102209 returns 80 kW. If a converter fails this test it has inverted the factor, which is the single most common conversion error there is.
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Frequently asked questions
What is 80 kilowatts in horsepower?
It comes to 107.2817672 hp. The unrounded figure is 107.281767168 horsepower, if you need to carry it forward.
How do you convert kilowatts to horsepower?
Multiply by 1.34102209. So 80 × 1.34102209 = 107.2817672 horsepower. The factor comes from a definition rather than a measurement, so it never changes.
What is 107.2817672 horsepower back in kilowatts?
It goes back to 80 kilowatts. The reciprocal of the factor is 0.7456998716, so multiplying by that works just as well as dividing.
Is 80 kW a lot?
80 kW is 107.3 mechanical horsepower and 108.8 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 8.44 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 kilowatt?
The rating unit for motors, EV chargers and solar arrays.
What is a horsepower?
Mechanical horsepower, defined by James Watt as 550 foot-pounds per second.
80 kW in horsepower — nearby values
| Kilowatts | Horsepower | Unrounded |
|---|---|---|
| 74 kW | 99.235635 | 99.23563463 |
| 75 kW | 100.57666 | 100.5766567 |
| 76 kW | 101.91768 | 101.9176788 |
| 77 kW | 103.2587 | 103.2587009 |
| 78 kW | 104.59972 | 104.599723 |
| 79 kW | 105.94075 | 105.9407451 |
| 80 kW | 107.28177 | 107.2817672 |
| 81 kW | 108.62279 | 108.6227893 |
| 82 kW | 109.96381 | 109.9638113 |
| 83 kW | 111.30483 | 111.3048334 |
| 84 kW | 112.64586 | 112.6458555 |
| 85 kW | 113.98688 | 113.9868776 |
| 86 kW | 115.3279 | 115.3278997 |
Exact factor: 1 kilowatt = 1.3410220896 horsepower. The row for 80 kW is the value this page is about.