Distance divided by time.
Millimeter per Days to Centimeter per Hours Converter — mm/d to cm/h
Convert Millimeter per Days (mm/d) to Centimeter per Hours (cm/h) using the exact conversion factor (1 millimeter per days = 0.0041666667 centimeter per hours). See the formula, worked examples, and conversion table.
Millimeter per Days to Centimeter 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 1.15740741e-8 / 2.77777778e-6.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Millimeter per Days to Centimeter per Hours
Millimeter per Days and Centimeter 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
centimeter per hours = millimeter per days × 0.00416666666667
This factor comes from each unit's defined relationship to the category's base unit: 1 millimeter per days equals 1.157407e-8 base units, and 1 centimeter per hours equals 0.00000277777777778 base units, so dividing one by the other gives the direct millimeter per days-to-centimeter per hours factor of 0.00416666666667.
Simple example
1 mm/d × 0.004166666667 = 0.0041666667 cm/h
1 millimeter per days = 0.0041666667 centimeter per hours.
Real-world example
10 mm/d × 0.004166666667 = 0.0416666667 cm/h
10 millimeter per days = 0.0416666667 centimeter per hours.
Conversion table
| Millimeter per Days (mm/d) | Centimeter per Hours (cm/h) |
|---|---|
| 1 mm/d | 0.0041666667 cm/h |
| 5 mm/d | 0.0208333333 cm/h |
| 10 mm/d | 0.0416666667 cm/h |
| 25 mm/d | 0.1041666667 cm/h |
| 50 mm/d | 0.2083333333 cm/h |
| 100 mm/d | 0.4166666667 cm/h |
Reverse conversion: Centimeter per Hours to Millimeter per Days
0.0041666667 cm/h × 240 = 1.000000008 mm/d
0.0041666667 centimeter per hours = 1.000000008 millimeter per days.
millimeter per days = centimeter per hours × 240
For a page dedicated to this direction, see Centimeter per Hours to Millimeter per Days.
Understanding the Millimeter per Days (mm/d)
Distance divided by time.
Understanding the Centimeter per Hours (cm/h)
Distance divided by time.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many centimeter per hours are in 1 millimeter per days?
1 millimeter per days equals 0.0041666667 centimeter per hours, using the exact defined conversion factor rather than an estimate.
How do I convert millimeter per days to centimeter per hours?
Multiply the millimeter per days value by 0.004166666667. The converter above does this instantly to whatever precision you set.
How do I convert centimeter per hours back to millimeter per days?
Use the reverse factor: 1 centimeter per hours equals 240 millimeter per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a millimeter per days?
Millimeter per Days (mm/d) is a unit of speed.
What is a centimeter per hours?
Centimeter per Hours (cm/h) is a unit of speed.
Is the millimeter per days to centimeter per hours conversion exact?
Yes. Both millimeter per days and centimeter per hours are defined by fixed standards rather than physical artifacts, so the factor of 0.004166666667 used above is exact to as many digits as you choose to display.