Distance divided by time.
Centimeter per Days to Millimeter per Days Converter — cm/d to mm/d
Convert Centimeter per Days (cm/d) to Millimeter per Days (mm/d) using the exact conversion factor (1 centimeter per days = 10 millimeter per days). See the formula, worked examples, and conversion table.
Centimeter per Days 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 1.15740741e-7 / 1.15740741e-8.
Speed uses meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Centimeter per Days to Millimeter per Days
Centimeter per Days 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 = centimeter per days × 10
This factor comes from each unit's defined relationship to the category's base unit: 1 centimeter per days equals 1.157407e-7 base units, and 1 millimeter per days equals 1.157407e-8 base units, so dividing one by the other gives the direct centimeter per days-to-millimeter per days factor of 10.
Simple example
1 cm/d × 10 = 10 mm/d
1 centimeter per days = 10 millimeter per days.
Real-world example
10 cm/d × 10 = 100 mm/d
10 centimeter per days = 100 millimeter per days.
Conversion table
| Centimeter per Days (cm/d) | Millimeter per Days (mm/d) |
|---|---|
| 1 cm/d | 10 mm/d |
| 5 cm/d | 50 mm/d |
| 10 cm/d | 100 mm/d |
| 25 cm/d | 250 mm/d |
| 50 cm/d | 500 mm/d |
| 100 cm/d | 1,000 mm/d |
Reverse conversion: Millimeter per Days to Centimeter per Days
10 mm/d × 0.1 = 1 cm/d
10 millimeter per days = 1 centimeter per days.
centimeter per days = millimeter per days × 0.1
For a page dedicated to this direction, see Millimeter per Days to Centimeter per Days.
Understanding the Centimeter per Days (cm/d)
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 centimeter per days?
1 centimeter per days equals 10 millimeter per days, using the exact defined conversion factor rather than an estimate.
How do I convert centimeter per days to millimeter per days?
Multiply the centimeter per days value by 10. The converter above does this instantly to whatever precision you set.
How do I convert millimeter per days back to centimeter per days?
Use the reverse factor: 1 millimeter per days equals 0.1 centimeter per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a centimeter per days?
Centimeter per Days (cm/d) is a unit of speed.
What is a millimeter per days?
Millimeter per Days (mm/d) is a unit of speed.
Is the centimeter per days to millimeter per days conversion exact?
Yes. Both centimeter per days and millimeter per days are defined by fixed standards rather than physical artifacts, so the factor of 10 used above is exact to as many digits as you choose to display.