Convert kilometer per hour to mile per second
Only numbers, with a single decimal separator.
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- 1 km/h = 0.000173 mi/s
- 1 mi/s = 5793.6384 km/h
Example: kilometer per hour to mile per second
- 1 kilometer per hour = 0.000173 mile per second
Kilometer per hour to mile per second conversion table
| kilometer per hour | mile per second |
|---|---|
| 1 | 0.000173 |
| 2 | 0.000345 |
| 5 | 0.000863 |
| 10 | 0.001726 |
| 20 | 0.003452 |
| 50 | 0.00863 |
| 100 | 0.01726 |
Kilometer per hour to mile per second formula
To convert kilometer per hour to mile per second, multiply by 0.000173.
1 km/h = 0.000173 mi/s
Common speed conversion mistakes
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A knot is one nautical mile per hour, exactly 1.852 km/h, not 1 km/h. A boat doing 20 knots travels at about 37 km/h. Multiply knots by 1.852 to get km/h.
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Between m/s and km/h the factor is 3.6, an hour has 3,600 seconds and a kilometer 1,000 meters. Multiply m/s by 3.6 to get km/h (10 m/s = 36 km/h) and divide going the other way. Flipping the factor produces a thirteen-fold error.
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UK and US road signs show miles per hour, not km/h. 1 mph is about 1.609 km/h, so a '70' limit means about 113 km/h. Multiply mph by 1.6 to think in km/h.
Quick kilometer per hour and mile per second conversion quiz
2 mile per second equals 2.32e+3 kilometer per hour.
Correct answer: 2 mile per second = 1.16e+4 kilometer per hour.
20 kilometer per hour equals 0.00345 mile per second.
Correct answer: 20 kilometer per hour = 0.00345 mile per second.
1 kilometer per hour equals 0.000173 mile per second.
Correct answer: 1 kilometer per hour = 0.000173 mile per second.
5 kilometer per hour equals 0.000863 mile per second.
Correct answer: 5 kilometer per hour = 0.000863 mile per second.
50 mile per second equals 2.9e+5 kilometer per hour.
Correct answer: 50 mile per second = 2.9e+5 kilometer per hour.