Distance divided by time.
Foot per Hours to Millimeter per Days Converter — ft/h to mm/d
Convert Foot per Hours (ft/h) to Millimeter per Days (mm/d) using the exact conversion factor (1 foot per hours = 7,315.2 millimeter per days). See the formula, worked examples, and conversion table.
Foot per Hours to Millimeter 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 8.46666667e-5 / 1.15740741e-8.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Foot per Hours to Millimeter per Days
Foot per Hours and Millimeter 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
millimeter per days = foot per hours × 7315.2
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 millimeter per days equals 1.157407e-8 base units, so dividing one by the other gives the direct foot per hours-to-millimeter per days factor of 7315.2.
Simple example
1 ft/h × 7315.2 = 7,315.2 mm/d
1 foot per hours = 7,315.2 millimeter per days.
Real-world example
10 ft/h × 7315.2 = 73,152 mm/d
10 foot per hours = 73,152 millimeter per days.
Conversion table
| Foot per Hours (ft/h) | Millimeter per Days (mm/d) |
|---|---|
| 1 ft/h | 7,315.2 mm/d |
| 5 ft/h | 36,576 mm/d |
| 10 ft/h | 73,152 mm/d |
| 25 ft/h | 182,880 mm/d |
| 50 ft/h | 365,760 mm/d |
| 100 ft/h | 731,520 mm/d |
Reverse conversion: Millimeter per Days to Foot per Hours
1 mm/d × 0.0001367016623 = 0.0001367017 ft/h
1 millimeter per days = 0.0001367017 foot per hours.
foot per hours = millimeter per days × 0.000136701662292
For a page dedicated to this direction, see Millimeter per Days to Foot per Hours.
Understanding the Foot per Hours (ft/h)
Distance divided by time.
Understanding the Millimeter per Days (mm/d)
Distance divided by time.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many millimeter per days are in 1 foot per hours?
1 foot per hours equals 7,315.2 millimeter per days, using the exact defined conversion factor rather than an estimate.
How do I convert foot per hours to millimeter per days?
Multiply the foot per hours value by 7315.2. The converter above does this instantly to whatever precision you set.
How do I convert millimeter per days back to foot per hours?
Use the reverse factor: 1 millimeter per days equals 0.0001367017 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 millimeter per days?
Millimeter per Days (mm/d) is a unit of speed.
Is the foot per hours to millimeter per days conversion exact?
Yes. Both foot per hours and millimeter per days are defined by fixed standards rather than physical artifacts, so the factor of 7315.2 used above is exact to as many digits as you choose to display.