Convert Centimeters to Micrometers
1 centimeter is 10,000 µm. One centimeter is exactly 10000 micrometers.
One centimeter is 10000 micrometers. To convert centimeters to micrometers, multiply by 10000; to go the other way, divide by 10000 or multiply by 1.0000 × 10^-4. The factor is exact rather than rounded: it follows from NIST. One hundredth of a meter, and the unit most of the world states height in.
Factor checked against the defining standard · How we check
- Centimeters × 10000
1 * 1000010,000 µm
1 centimeter in every length unit
| Unit | Value | Exact factor |
|---|---|---|
| inches | 0.3937007874 in | × 0.393700787402 |
| feet | 0.03280839895 ft | × 0.0328083989501 |
| yards | 0.01093613298 yd | × 0.0109361329834 |
| miles | 0.000006213711922 mi | × 0.00000621371192237 |
| millimeters | 10 mm | × 10 |
| decimetres | 0.1 dm | × 0.1 |
| centimeters (as entered) | 1 cm | — |
| meters | 0.01 m | × 0.01 |
| kilometers | 0.00001 km | × 0.00001 |
| nautical miles | 0.000005399568035 nmi | × 0.00000539956803456 |
| micrometers | 10,000 µm | × 10,000 |
| nanometers | 10,000,000 nm | × 10,000,000 |
| thou | 393.7007874 thou | × 393.700787402 |
Factors are entered by hand from NIST rather than derived from a units library, so the ones that terminate are exact rather than rounded.
The same converter answers this pair however it is written: centimetres to micrometres is the British spelling of the same units — the metre and the litre are spelled that way outside the United States and the quantity does not change.
How do you convert centimeters to micrometers? The converter and the working
- 1.Take the measurement in centimeters.
- 2.Multiply by 10000 — that is how many micrometers fit in one centimeter.
- 3.To go back the other way, divide by 10000, or multiply by 1.0000 × 10^-4.
Worked example: 25 centimeters to micrometers
- Formula
- cm × 10000 = µm
- Arithmetic
- 25 × 10000 = 250,000 µm
- Answer
- 25 cm = 250,000 µm
The factor is exact, so this figure is exact too — only the display is rounded.
Centimeters to micrometers conversion table
| Centimeters | Micrometers |
|---|---|
| 1 cm | 10,000 µm |
| 2 cm | 20,000 µm |
| 3 cm | 30,000 µm |
| 4 cm | 40,000 µm |
| 5 cm | 50,000 µm |
| 6 cm | 60,000 µm |
| 7 cm | 70,000 µm |
| 8 cm | 80,000 µm |
| 9 cm | 90,000 µm |
| 10 cm | 100,000 µm |
| 12 cm | 120,000 µm |
| 15 cm | 150,000 µm |
| 20 cm | 200,000 µm |
| 25 cm | 250,000 µm |
| 50 cm | 500,000 µm |
| 100 cm | 1,000,000 µm |
| 200 cm | 2,000,000 µm |
| 300 cm | 3,000,000 µm |
| 500 cm | 5,000,000 µm |
| 1000 cm | 10,000,000 µm |
| 2000 cm | 20,000,000 µm |
| 5000 cm | 50,000,000 µm |
| 10000 cm | 100,000,000 µm |
What is a centimeter?
One hundredth of a meter, and the unit most of the world states height in.
What is a micrometer?
A millionth of a meter, still widely called a micron. Machining tolerances, filter ratings and cell diameters are all quoted here.
How many micrometers are in a centimeter?
One centimeter is 10000 micrometers, exactly. Going the other way, one micrometer is 1.0000 × 10^-4 centimeters. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every length unit here
The whole group — 13 units with their symbols and the size of each one in meters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a centimeter.
Source: NIST — international yard and pound agreement (inch = 25.4 mm exactly)
Cite this page
- APA
- Rule Calculator. (2026). Convert Centimeters to micrometers. Rule Calculator. https://rulecalculators.com/convert/centimeter-to-micrometer
- MLA
- "Convert Centimeters to micrometers." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/centimeter-to-micrometer.
- Chicago
- Rule Calculator. "Convert Centimeters to micrometers." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/centimeter-to-micrometer.
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Questions people actually ask
- How many micrometers are in a centimeter?
- 10000. A millionth of a meter, still widely called a micron. Machining tolerances, filter ratings and cell diameters are all quoted here.
- How do I convert micrometers back to centimeters?
- Divide by 10000, or multiply by 1.0000 × 10^-4 — they are the same operation.
Other length conversions
Micrometers to centimeters — the same conversion the other way.