Distance divided by time.
Millimeter per Hours to Foot per Days Converter — mm/h to ft/d
Convert Millimeter per Hours (mm/h) to Foot per Days (ft/d) using the exact conversion factor (1 millimeter per hours = 0.0787401575 foot per days). See the formula, worked examples, and conversion table.
Millimeter per Hours to Foot per Days 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 / 3.52777778e-6.
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 Days
Millimeter per Hours and Foot per Days 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 days = millimeter per hours × 0.0787401574803
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 days equals 0.00000352777777778 base units, so dividing one by the other gives the direct millimeter per hours-to-foot per days factor of 0.0787401574803.
Simple example
1 mm/h × 0.07874015748 = 0.0787401575 ft/d
1 millimeter per hours = 0.0787401575 foot per days.
Real-world example
10 mm/h × 0.07874015748 = 0.7874015748 ft/d
10 millimeter per hours = 0.7874015748 foot per days.
Conversion table
| Millimeter per Hours (mm/h) | Foot per Days (ft/d) |
|---|---|
| 1 mm/h | 0.0787401575 ft/d |
| 5 mm/h | 0.3937007874 ft/d |
| 10 mm/h | 0.7874015748 ft/d |
| 25 mm/h | 1.968503937 ft/d |
| 50 mm/h | 3.937007874 ft/d |
| 100 mm/h | 7.874015748 ft/d |
Reverse conversion: Foot per Days to Millimeter per Hours
0.0787401575 ft/d × 12.7 = 1 mm/h
0.0787401575 foot per days = 1 millimeter per hours.
millimeter per hours = foot per days × 12.7
For a page dedicated to this direction, see Foot per Days to Millimeter per Hours.
Understanding the Millimeter per Hours (mm/h)
Distance divided by time.
Understanding the Foot per Days (ft/d)
Distance divided by time.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many foot per days are in 1 millimeter per hours?
1 millimeter per hours equals 0.0787401575 foot per days, using the exact defined conversion factor rather than an estimate.
How do I convert millimeter per hours to foot per days?
Multiply the millimeter per hours value by 0.07874015748. The converter above does this instantly to whatever precision you set.
How do I convert foot per days back to millimeter per hours?
Use the reverse factor: 1 foot per days equals 12.7 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 days?
Foot per Days (ft/d) is a unit of speed.
Is the millimeter per hours to foot per days conversion exact?
Yes. Both millimeter per hours and foot per days are defined by fixed standards rather than physical artifacts, so the factor of 0.07874015748 used above is exact to as many digits as you choose to display.