Convert kilometer per hour to mile per second

Here you can quickly calculate how many mile per second fit in one kilometer per hour.

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Conversion from kilometer per hour to mile per second example

Starting value Increment Accuracy

To convert kilometer per hour to mile per second, multiply by 0.000173.

1 km/h = 0.000173 mi/s

Example: 1 kilometer per hour = 0.000173 mile per second

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.
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.
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.

Score: 0

20 kilometer per hour equals 0.00345 mile per second.

Correct answer: 20 kilometer per hour = 0.00345 mile per second.

2 mile per second equals 1.16e+4 kilometer per hour.

Correct answer: 2 mile per second = 1.16e+4 kilometer per hour.

10 kilometer per hour equals 0.00173 mile per second.

Correct answer: 10 kilometer per hour = 0.00173 mile per second.

5 kilometer per hour equals 0.000863 mile per second.

Correct answer: 5 kilometer per hour = 0.000863 mile per second.

5 mile per second equals 2.9e+3 kilometer per hour.

Correct answer: 5 mile per second = 2.9e+4 kilometer per hour.