Distance divided by time.
Millimeter per Hours to Mile per Days Converter — mm/h to mi/d
Convert Millimeter per Hours (mm/h) to Mile per Days (mi/d) using the exact conversion factor (1 millimeter per hours = 0.0000149129 mile per days). See the formula, worked examples, and conversion table.
Millimeter per Hours to Mile 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 / 0.01862666667.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Millimeter per Hours to Mile per Days
Millimeter per Hours and Mile 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
mile per days = millimeter per hours × 0.0000149129086137
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 mile per days equals 0.0186266666667 base units, so dividing one by the other gives the direct millimeter per hours-to-mile per days factor of 0.0000149129086137.
Simple example
1 mm/h × 0.00001491290861 = 0.0000149129 mi/d
1 millimeter per hours = 0.0000149129 mile per days.
Real-world example
10 mm/h × 0.00001491290861 = 0.0001491291 mi/d
10 millimeter per hours = 0.0001491291 mile per days.
Conversion table
| Millimeter per Hours (mm/h) | Mile per Days (mi/d) |
|---|---|
| 1 mm/h | 0.0000149129 mi/d |
| 5 mm/h | 0.0000745645 mi/d |
| 10 mm/h | 0.0001491291 mi/d |
| 25 mm/h | 0.0003728227 mi/d |
| 50 mm/h | 0.0007456454 mi/d |
| 100 mm/h | 0.0014912909 mi/d |
Reverse conversion: Mile per Days to Millimeter per Hours
0.0000149129 mi/d × 67056 = 0.9999994224 mm/h
0.0000149129 mile per days = 0.9999994224 millimeter per hours.
millimeter per hours = mile per days × 67056
For a page dedicated to this direction, see Mile per Days to Millimeter per Hours.
Understanding the Millimeter per Hours (mm/h)
Distance divided by time.
Understanding the Mile per Days (mi/d)
Distance divided by time.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many mile per days are in 1 millimeter per hours?
1 millimeter per hours equals 0.0000149129 mile per days, using the exact defined conversion factor rather than an estimate.
How do I convert millimeter per hours to mile per days?
Multiply the millimeter per hours value by 0.00001491290861. The converter above does this instantly to whatever precision you set.
How do I convert mile per days back to millimeter per hours?
Use the reverse factor: 1 mile per days equals 67,056 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 mile per days?
Mile per Days (mi/d) is a unit of speed.
Is the millimeter per hours to mile per days conversion exact?
Yes. Both millimeter per hours and mile per days are defined by fixed standards rather than physical artifacts, so the factor of 0.00001491290861 used above is exact to as many digits as you choose to display.