Convert Feet per Second to Kilometers per Hour
Convert Feet per Second to Kilometers per Hour instantly. 1 Foot per Second (ft/s) equals 1.0973 Kilometers per Hour (km/h).
Feet per Second to Kilometers per Hour conversion table
| Feet per Second (ft/s) | Kilometers per Hour (km/h) |
|---|---|
| 1 ft/s | 1.0973 km/h |
| 2 ft/s | 2.1946 km/h |
| 3 ft/s | 3.2918 km/h |
| 5 ft/s | 5.4864 km/h |
| 10 ft/s | 10.9728 km/h |
| 20 ft/s | 21.9456 km/h |
| 50 ft/s | 54.864 km/h |
| 100 ft/s | 109.728 km/h |
| 500 ft/s | 548.64 km/h |
| 1,000 ft/s | 1,097.28 km/h |
1 Foot per Second = 1.0973 Kilometers per Hour · multiply Feet per Second by 1.0973
About converting Feet per Second to Kilometers per Hour
Feet per Second (ft/s) and Kilometers per Hour (km/h) are both units of speed, so converting between them is a single multiplication: multiply your Feet per Second figure by 1.0973. Ten Feet per Second comes to 10.9728 Kilometers per Hour, and a hundred works out at 109.728 Kilometers per Hour.
Rule of thumb: going from Feet per Second to Kilometers per Hour multiplies, so the figure always grows — one Foot per Second is already 1.0973 Kilometers per Hour. If your answer came out smaller, you have the conversion the wrong way round.
What is a Foot per Second?
Feet per second is a working unit rather than a public one. It appears wherever American engineering needs a speed that pairs with dimensions already given in feet — conveyor and belt speeds, water flowing in a channel, air velocity in a duct — and above all in ballistics, where muzzle velocity has always been quoted in ft/s. It is also the unit US physics problems fall back on when they are posed in imperial, so it feels oddly familiar to anyone who learned mechanics from an American textbook. On a road sign it appears essentially never.
What is a Kilometer per Hour?
The kilometer per hour is the road-speed unit of nearly every country on Earth: the number on the speedometer, the number on the sign, the number in the ticket. It is a compound unit rather than a fundamental one — a distance divided by a time — and that is precisely why it took hold, because people already thought in kilometers and in hours and so needed no new idea to think in km/h. Its only real rivals are mph, which clings on in the United States and the United Kingdom, and the knot, which owns the sea and the sky.
To put both in perspective: a rifle bullet leaves the muzzle at roughly 3,000 feet per second, while a typical motorway limit is around 120 kilometers per hour.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Kilometers per Hour to Feet per Second converter, or browse all Speed converters.
Frequently asked questions
How many Kilometers per Hour are in one Foot per Second?
There are 1.0973 Kilometers per Hour in one Foot per Second.
How do I convert Feet per Second to Kilometers per Hour?
Multiply the number of Feet per Second by 1.0973. For example, 10 Feet per Second = 10.9728 Kilometers per Hour.
What is 100 Feet per Second in Kilometers per Hour?
100 Feet per Second is equal to 109.728 Kilometers per Hour.
How do I convert Kilometers per Hour to Feet per Second?
Multiply the Kilometers per Hour value by 0.9113 (or divide by 1.0973).
Is this Feet per Second to Kilometers per Hour conversion exact?
The definition is exact — Feet per Second and Kilometers per Hour are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.
What is a Foot per Second?
Feet per second is a working unit rather than a public one. It appears wherever American engineering needs a speed that pairs with dimensions already given in feet — conveyor and belt speeds, water flowing in a channel, air velocity in a duct — and above all in ballistics, where muzzle velocity has always been quoted in ft/s. It is also the unit US physics problems fall back on when they are posed in imperial, so it feels oddly familiar to anyone who learned mechanics from an American textbook. On a road sign it appears essentially never.
What is a Kilometer per Hour?
The kilometer per hour is the road-speed unit of nearly every country on Earth: the number on the speedometer, the number on the sign, the number in the ticket. It is a compound unit rather than a fundamental one — a distance divided by a time — and that is precisely why it took hold, because people already thought in kilometers and in hours and so needed no new idea to think in km/h. Its only real rivals are mph, which clings on in the United States and the United Kingdom, and the knot, which owns the sea and the sky.