Distance divided by time.
Centimeter per Seconds to Millimeter per Hours Converter — cm/s to mm/h
Convert Centimeter per Seconds (cm/s) to Millimeter per Hours (mm/h) using the exact conversion factor (1 centimeter per seconds = 36,000 millimeter per hours). See the formula, worked examples, and conversion table.
Centimeter per Seconds to Millimeter 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 0.01 / 2.77777778e-7.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Centimeter per Seconds to Millimeter per Hours
Centimeter per Seconds and Millimeter 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
millimeter per hours = centimeter per seconds × 36000
This factor comes from each unit's defined relationship to the category's base unit: 1 centimeter per seconds equals 0.01 base units, and 1 millimeter per hours equals 2.777778e-7 base units, so dividing one by the other gives the direct centimeter per seconds-to-millimeter per hours factor of 36000.
Simple example
1 cm/s × 36000 = 36,000 mm/h
1 centimeter per seconds = 36,000 millimeter per hours.
Real-world example
10 cm/s × 36000 = 360,000 mm/h
10 centimeter per seconds = 360,000 millimeter per hours.
Conversion table
| Centimeter per Seconds (cm/s) | Millimeter per Hours (mm/h) |
|---|---|
| 1 cm/s | 36,000 mm/h |
| 5 cm/s | 180,000 mm/h |
| 10 cm/s | 360,000 mm/h |
| 25 cm/s | 900,000 mm/h |
| 50 cm/s | 1,800,000 mm/h |
| 100 cm/s | 3,600,000 mm/h |
Reverse conversion: Millimeter per Hours to Centimeter per Seconds
1 mm/h × 0.00002777777778 = 0.0000277778 cm/s
1 millimeter per hours = 0.0000277778 centimeter per seconds.
centimeter per seconds = millimeter per hours × 0.0000277777777778
For a page dedicated to this direction, see Millimeter per Hours to Centimeter per Seconds.
Understanding the Centimeter per Seconds (cm/s)
Distance divided by time.
Understanding the Millimeter per Hours (mm/h)
Distance divided by time.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many millimeter per hours are in 1 centimeter per seconds?
1 centimeter per seconds equals 36,000 millimeter per hours, using the exact defined conversion factor rather than an estimate.
How do I convert centimeter per seconds to millimeter per hours?
Multiply the centimeter per seconds value by 36000. The converter above does this instantly to whatever precision you set.
How do I convert millimeter per hours back to centimeter per seconds?
Use the reverse factor: 1 millimeter per hours equals 0.0000277778 centimeter per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a centimeter per seconds?
Centimeter per Seconds (cm/s) is a unit of speed.
What is a millimeter per hours?
Millimeter per Hours (mm/h) is a unit of speed.
Is the centimeter per seconds to millimeter per hours conversion exact?
Yes. Both centimeter per seconds and millimeter per hours are defined by fixed standards rather than physical artifacts, so the factor of 36000 used above is exact to as many digits as you choose to display.