79 kilowatts works out to 105.9407451 hp. The calculation is 79 × 1.34102209, and the unrounded result is 105.940745078 horsepower, which is the number to use if this feeds into anything else.
79 kW is 105.9 mechanical horsepower and 107.4 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 8.55 seconds to deliver, which is a floor rather than a real figure because it ignores drag and traction limits.
The result sits 4.059 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 79 that shortcut gives 102.7 horsepower, off by 3.241 horsepower or about 3.06%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
The formula
79 kW- The quantity being converted
1.34102209- Exact horsepower in one kilowatt
105.9407451 hp- The converted result
How it works, step by step
- Start with 79 kilowatts.
- Apply the defined factor: one kilowatt is 1.34102209 horsepower, so multiply by that.
- The product is 105.940745078 horsepower.
- Going the other way, divide rather than multiply — 105.9407451 hp ÷ 1.34102209 brings you back to 79 kW.
Worked examples
Step by step
79 kW × 1.34102209 = 105.940745078 hp. One multiplication, with no rounding until the value reaches the screen.
Proving it both ways
105.9407451 hp ÷ 1.34102209 = 79 kW. Recovering the original number is the fastest way to confirm the factor was not applied upside down.
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Frequently asked questions
What is 79 kilowatts in horsepower?
79 kilowatts is exactly 105.9407451 hp. Carried to full precision that is 105.940745078 horsepower.
How do you convert kilowatts to horsepower?
Multiply by 1.34102209. So 79 × 1.34102209 = 105.9407451 horsepower. The factor comes from a definition rather than a measurement, so it never changes.
What is 105.9407451 horsepower back in kilowatts?
Divide by 1.34102209, or multiply by 0.7456998716 — either returns 79 kilowatts.
What does 79 kW actually look like?
79 kW is 105.9 mechanical horsepower and 107.4 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 8.55 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.
79 kW in horsepower — nearby values
| Kilowatts | Horsepower | Unrounded |
|---|---|---|
| 73 kW | 97.894613 | 97.89461254 |
| 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 |
Exact factor: 1 kilowatt = 1.3410220896 horsepower. The row for 79 kW is the value this page is about.