Distance divided by time.
Foot per Hours to mph Converter — ft/h to mph
Convert Foot per Hours (ft/h) to mph (mph) using the exact conversion factor (1 foot per hours = 0.0001893939 mph). See the formula, worked examples, conversion table, history, and common uses.
Foot per Hours to mph 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.
Miles per hour.
Result = input x 8.46666667e-5 / 0.44704.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Foot per Hours to mph
Foot per Hours and mph both describe speed, and the conversion matters whenever a maritime or aviation speed (knots) needs to be compared against a road speed (mph). Specifically: Distance divided by time, and miles per hour.
Formula
mph = foot per hours × 0.000189393939394
This factor comes from each unit's defined relationship to the category's base unit: 1 foot per hours equals 0.0000846666666667 base units, and 1 mph equals 0.44704 base units, so dividing one by the other gives the direct foot per hours-to-mph factor of 0.000189393939394.
Simple example
1 ft/h × 0.0001893939394 = 0.0001893939 mph
1 foot per hours = 0.0001893939 mph.
Real-world example
10 ft/h × 0.0001893939394 = 0.0018939394 mph
10 foot per hours = 0.0018939394 mph.
Conversion table
| Foot per Hours (ft/h) | mph (mph) |
|---|---|
| 1 ft/h | 0.0001893939 mph |
| 5 ft/h | 0.0009469697 mph |
| 10 ft/h | 0.0018939394 mph |
| 25 ft/h | 0.0047348485 mph |
| 50 ft/h | 0.009469697 mph |
| 100 ft/h | 0.0189393939 mph |
Reverse conversion: mph to Foot per Hours
0.0001893939 mph × 5280 = 0.999999792 ft/h
0.0001893939 mph = 0.999999792 foot per hours.
foot per hours = mph × 5280
For a page dedicated to this direction, see mph to Foot per Hours.
Understanding the Foot per Hours (ft/h)
Distance divided by time.
Understanding the mph
mph (mph) measures speed. Miles per hour follows directly from the international statute mile (1,609.344 m) divided by one hour. It is classified as a US/imperial customary unit.
Where it's used: United States (road speed limits and vehicle speedometers) United Kingdom (road speed limits)
Uses of the mph today
- Road speed limits and vehicle speedometers in the US and UK
- Weather reporting (wind speed) in the US
- Sports statistics (e.g. pitch speed, wind gusts) in US media
History of the mph
Miles per hour is a compound unit with no separate origin story of its own — it follows automatically once the statute mile was fixed at 5,280 feet in 1593 and later refined to exactly 1,609.344 meters by the 1959 international agreement that also standardized the pound.
Historical origin. mph was not the invention of a single named person; it developed through the process described above.
mph — sources
- NIST — International yard and pound (1959) — Basis for the modern mile used in mph.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many mph are in 1 foot per hours?
1 foot per hours equals 0.0001893939 mph, using the exact defined conversion factor rather than an estimate.
How do I convert foot per hours to mph?
Multiply the foot per hours value by 0.0001893939394. The converter above does this instantly to whatever precision you set.
How do I convert mph back to foot per hours?
Use the reverse factor: 1 mph equals 5,280 foot per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a foot per hours?
Foot per Hours (ft/h) is a unit of speed.
What is a mph?
mph (mph) measures speed. Miles per hour follows directly from the international statute mile (1,609.344 m) divided by one hour. It is classified as a US/imperial customary unit.
Is the foot per hours to mph conversion exact?
Yes. Both foot per hours and mph are defined by fixed standards rather than physical artifacts, so the factor of 0.0001893939394 used above is exact to as many digits as you choose to display.