Convert 9 fps to kph

How to convert feet per second to kilometers per hour

1. Formula: kilometers per hour = feet per second × 1.09728
2. Put in the value: 9 feet per second.
3. Result: 9.87552 kilometers per hour.

Feet per second to kilometers per hour table

Converting the other way: kilometers per hour to feet per second

feet per second = kilometers per hour × 0.91134442. So 9.87552 kilometers per hour is back to 9 feet per second; one kilometer per hour is 0.91134442 feet per second. See the kilometers per hour to feet per second table.

Quick estimate in your head

For a rough answer, multiply by about 1.1: 9 × 1.1 ≈ 9.9 kph, against the exact 9.87552 kph (0.2% out). Good enough to check that a calculated result is sensible.

Common mistakes

The usual slip is using the factor the wrong way round. A foot per second is bigger than a kilometer per hour, so the number of kilometers per hour must come out larger than the number of feet per second. If your answer goes the other way, divide instead of multiplying.

About the units

Foot per second (fps) and kilometer per hour (kph) are both units of speed. One foot per second equals 1.09728 kilometers per hour, and one kilometer per hour equals 0.91134442 feet per second. Results on this page are rounded for display; the conversion itself uses the exact definitions.

Speed conversions come up when driving abroad, in running and cycling paces, weather and wind reports, and sailing and flying.

9 feet per second in other units

The most readable unit for this amount is meters per second (2.7432).

• 2.7432 mps
• 9.87552 kph
• 6.136364 mph
• 5.332354 kn

How this answer was calculated

The result is worked out from the numbers in this page's address when the page is opened, using exact arithmetic wherever possible and rounding only for display. Nothing is copied from a printed table. If you think an answer is wrong, please tell us through the contact page and we will check it.

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