Kilometers per hour.
km/h to Foot per Hours Converter — km/h to ft/h
Convert km/h (km/h) to Foot per Hours (ft/h) using the exact conversion factor (1 km/h = 3,280.839895 foot per hours). See the formula, worked examples, conversion table, history, and common uses.
km/h to Foot per Hours converter
Converter
Speed Converter
Convert road, aviation, marine, lab, and scientific speed units.
Context values
Some unit families need one extra value for a physically accurate result.
Distance divided by time.
Result = input x 0.2777777778 / 8.46666667e-5.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting km/h to Foot per Hours
km/h and Foot per Hours both describe speed, and the conversion matters whenever a maritime or aviation speed (knots) needs to be compared against a road speed (mph). km/h is most often used for road speed limits and vehicle speedometers outside the us.
Formula
foot per hours = km/h × 3280.83989501
This factor comes from each unit's defined relationship to the category's base unit: 1 km/h equals 0.277777777778 base units, and 1 foot per hours equals 0.0000846666666667 base units, so dividing one by the other gives the direct km/h-to-foot per hours factor of 3280.83989501.
Simple example
1 km/h × 3280.839895 = 3,280.839895 ft/h
1 km/h = 3,280.839895 foot per hours.
Real-world example
10 km/h × 3280.839895 = 32,808.39895 ft/h
10 km/h = 32,808.39895 foot per hours.
Conversion table
| km/h (km/h) | Foot per Hours (ft/h) |
|---|---|
| 1 km/h | 3,280.839895 ft/h |
| 5 km/h | 16,404.19948 ft/h |
| 10 km/h | 32,808.39895 ft/h |
| 25 km/h | 82,020.99738 ft/h |
| 50 km/h | 164,041.9948 ft/h |
| 100 km/h | 328,083.9895 ft/h |
Reverse conversion: Foot per Hours to km/h
1 ft/h × 0.0003048 = 0.0003048 km/h
1 foot per hours = 0.0003048 km/h.
km/h = foot per hours × 0.0003048
Understanding the km/h
km/h (km/h) measures speed. Kilometers per hour follows directly from the kilometer divided by one hour. It is classified as a SI-derived (metric) unit.
Where it's used: Standard road-speed unit worldwide except the US
Uses of the km/h today
- Road speed limits and vehicle speedometers outside the US
- Weather reporting (wind speed) in most countries
History of the km/h
Km/h is a compound unit with no independent origin story — it follows automatically once the kilometer and hour were each standardized, becoming the default speed unit as metric countries motorized through the 20th century.
Historical origin. km/h was not the invention of a single named person; it developed through the process described above.
Understanding the Foot per Hours (ft/h)
Distance divided by time.
km/h — sources
- BIPM SI Brochure — Non-SI units accepted for use with SI — Basis for compound metric units like km/h.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many foot per hours are in 1 km/h?
1 km/h equals 3,280.839895 foot per hours, using the exact defined conversion factor rather than an estimate.
How do I convert km/h to foot per hours?
Multiply the km/h value by 3280.839895. The converter above does this instantly to whatever precision you set.
How do I convert foot per hours back to km/h?
Use the reverse factor: 1 foot per hours equals 0.0003048 km/h. You can also use the swap control in the converter above to flip the direction instantly.
What is a km/h?
km/h (km/h) measures speed. Kilometers per hour follows directly from the kilometer divided by one hour. It is classified as a SI-derived (metric) unit.
What is a foot per hours?
Foot per Hours (ft/h) is a unit of speed.
Is the km/h to foot per hours conversion exact?
Yes. Both km/h and foot per hours are defined by fixed standards rather than physical artifacts, so the factor of 3280.839895 used above is exact to as many digits as you choose to display.
Where is the km/h still used today?
Standard road-speed unit worldwide except the US