Distance divided by time.
Millimeter per Hours to Foot per Hours Converter — mm/h to ft/h
Convert Millimeter per Hours (mm/h) to Foot per Hours (ft/h) using the exact conversion factor (1 millimeter per hours = 0.0032808399 foot per hours). See the formula, worked examples, and conversion table.
Millimeter per Hours 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 2.77777778e-7 / 8.46666667e-5.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Millimeter per Hours to Foot per Hours
Millimeter per Hours 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). Both are distance divided by time units.
Formula
foot per hours = millimeter per hours × 0.00328083989501
This factor comes from each unit's defined relationship to the category's base unit: 1 millimeter per hours equals 2.777778e-7 base units, and 1 foot per hours equals 0.0000846666666667 base units, so dividing one by the other gives the direct millimeter per hours-to-foot per hours factor of 0.00328083989501.
Simple example
1 mm/h × 0.003280839895 = 0.0032808399 ft/h
1 millimeter per hours = 0.0032808399 foot per hours.
Real-world example
10 mm/h × 0.003280839895 = 0.032808399 ft/h
10 millimeter per hours = 0.032808399 foot per hours.
Conversion table
| Millimeter per Hours (mm/h) | Foot per Hours (ft/h) |
|---|---|
| 1 mm/h | 0.0032808399 ft/h |
| 5 mm/h | 0.0164041995 ft/h |
| 10 mm/h | 0.032808399 ft/h |
| 25 mm/h | 0.0820209974 ft/h |
| 50 mm/h | 0.1640419948 ft/h |
| 100 mm/h | 0.3280839895 ft/h |
Reverse conversion: Foot per Hours to Millimeter per Hours
0.0032808399 ft/h × 304.8 = 1.000000002 mm/h
0.0032808399 foot per hours = 1.000000002 millimeter per hours.
millimeter per hours = foot per hours × 304.8
For a page dedicated to this direction, see Foot per Hours to Millimeter per Hours.
Understanding the Millimeter per Hours (mm/h)
Distance divided by time.
Understanding the Foot per Hours (ft/h)
Distance divided by time.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many foot per hours are in 1 millimeter per hours?
1 millimeter per hours equals 0.0032808399 foot per hours, using the exact defined conversion factor rather than an estimate.
How do I convert millimeter per hours to foot per hours?
Multiply the millimeter per hours value by 0.003280839895. The converter above does this instantly to whatever precision you set.
How do I convert foot per hours back to millimeter per hours?
Use the reverse factor: 1 foot per hours equals 304.8 millimeter per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a millimeter per hours?
Millimeter per Hours (mm/h) is a unit of speed.
What is a foot per hours?
Foot per Hours (ft/h) is a unit of speed.
Is the millimeter per hours to foot per hours conversion exact?
Yes. Both millimeter per hours and foot per hours are defined by fixed standards rather than physical artifacts, so the factor of 0.003280839895 used above is exact to as many digits as you choose to display.