Distance divided by time.
Millimeter per Hours to Centimeter per Days Converter — mm/h to cm/d
Convert Millimeter per Hours (mm/h) to Centimeter per Days (cm/d) using the exact conversion factor (1 millimeter per hours = 2.4 centimeter per days). See the formula, worked examples, and conversion table.
Millimeter per Hours to Centimeter 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 / 1.15740741e-7.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Millimeter per Hours to Centimeter per Days
Millimeter per Hours and Centimeter 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
centimeter per days = millimeter per hours × 2.4
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 centimeter per days equals 1.157407e-7 base units, so dividing one by the other gives the direct millimeter per hours-to-centimeter per days factor of 2.4.
Simple example
1 mm/h × 2.4 = 2.4 cm/d
1 millimeter per hours = 2.4 centimeter per days.
Real-world example
10 mm/h × 2.4 = 24 cm/d
10 millimeter per hours = 24 centimeter per days.
Conversion table
| Millimeter per Hours (mm/h) | Centimeter per Days (cm/d) |
|---|---|
| 1 mm/h | 2.4 cm/d |
| 5 mm/h | 12 cm/d |
| 10 mm/h | 24 cm/d |
| 25 mm/h | 60 cm/d |
| 50 mm/h | 120 cm/d |
| 100 mm/h | 240 cm/d |
Reverse conversion: Centimeter per Days to Millimeter per Hours
2.4 cm/d × 0.4166666667 = 1 mm/h
2.4 centimeter per days = 1 millimeter per hours.
millimeter per hours = centimeter per days × 0.416666666667
For a page dedicated to this direction, see Centimeter per Days to Millimeter per Hours.
Understanding the Millimeter per Hours (mm/h)
Distance divided by time.
Understanding the Centimeter per Days (cm/d)
Distance divided by time.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many centimeter per days are in 1 millimeter per hours?
1 millimeter per hours equals 2.4 centimeter per days, using the exact defined conversion factor rather than an estimate.
How do I convert millimeter per hours to centimeter per days?
Multiply the millimeter per hours value by 2.4. The converter above does this instantly to whatever precision you set.
How do I convert centimeter per days back to millimeter per hours?
Use the reverse factor: 1 centimeter per days equals 0.4166666667 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 centimeter per days?
Centimeter per Days (cm/d) is a unit of speed.
Is the millimeter per hours to centimeter per days conversion exact?
Yes. Both millimeter per hours and centimeter per days are defined by fixed standards rather than physical artifacts, so the factor of 2.4 used above is exact to as many digits as you choose to display.