59 horsepower is 43.99629242 kW. The exact arithmetic is 59 × 0.7456998716 = 43.9962924234 kilowatts, using the defined factor rather than a rounded one, so this matches what a calibrated instrument would give you.
43.9963 kW is 59 mechanical horsepower and 59.82 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 15.3 seconds to deliver, which is a floor rather than a real figure because it ignores drag and traction limits.
The result sits 1.004 kW short of 45 kW, so if you need a round figure to quote, 45 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 59 that shortcut gives 45.384615 kilowatts, off by 1.388 kilowatts or about 3.16%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
The formula
59 hp- The quantity being converted
0.7456998716- Exact kilowatts in one horsepower
43.99629242 kW- The converted result
How it works, step by step
- Take the horsepower value, 59.
- Scale it by 0.7456998716 — that is how many kilowatts fit in a single horsepower.
- That gives 43.9962924234 kilowatts.
- The reverse works the same way with division: 43.99629242 kW ÷ 0.7456998716 = 59 hp.
Worked examples
Working it through
Because this is a straight proportion, 59 hp × 0.7456998716 = 43.9962924234 kW — no offset, no second term, nothing else to account for.
Verifying the result
Run it in reverse — 43.99629242 kW ÷ 0.7456998716 = 59 hp. Matching the input you started from is the proof the direction is right.
How to read your score
Frequently asked questions
What is 59 horsepower in kilowatts?
It comes to 43.99629242 kW. The unrounded figure is 43.9962924234 kilowatts, if you need to carry it forward.
How do you convert horsepower to kilowatts?
Use the factor 0.7456998716 as a multiplier — 59 × 0.7456998716 gives 43.99629242 kilowatts. The same factor works at any scale because the relationship is linear.
What is 43.99629242 kilowatts back in horsepower?
It goes back to 59 horsepower. The reciprocal of the factor is 1.34102209, so multiplying by that works just as well as dividing.
How much is 59 hp in practice?
43.9963 kW is 59 mechanical horsepower and 59.82 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 15.3 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.
59 hp in kilowatts — nearby values
| Horsepower | Kilowatts | Unrounded |
|---|---|---|
| 53 hp | 39.522093 | 39.52209319 |
| 54 hp | 40.267793 | 40.26779307 |
| 55 hp | 41.013493 | 41.01349294 |
| 56 hp | 41.759193 | 41.75919281 |
| 57 hp | 42.504893 | 42.50489268 |
| 58 hp | 43.250593 | 43.25059255 |
| 59 hp | 43.996292 | 43.99629242 |
| 60 hp | 44.741992 | 44.74199229 |
| 61 hp | 45.487692 | 45.48769217 |
| 62 hp | 46.233392 | 46.23339204 |
| 63 hp | 46.979092 | 46.97909191 |
| 64 hp | 47.724792 | 47.72479178 |
| 65 hp | 48.470492 | 48.47049165 |
Exact factor: 1 horsepower = 0.745699871582 kilowatts. The row for 59 hp is the value this page is about.