µm to cm — convert micrometres to centimetres
Exact 1 ÷ 10,000 = 0.0001
1 micrometre in other units
| Nanometres | 1,000 | nm |
|---|---|---|
| Millimetres | 0.001 | mm |
| Centimetres | 0.0001 | cm |
| Metres | 0.000001 | m |
| Kilometres | 1e-9 | km |
| Inches | 0.000039370079 | in |
| Feet | 0.00000328084 | ft |
| Yards | 0.000001093613 | yd |
| Miles | 6.2137e-10 | mi |
| Nautical miles | 5.3996e-10 | nmi |
µm to cm at a glance
| Micrometres | Centimetres |
|---|---|
| 1 µm | 0.0001 cm |
| 2 µm | 0.0002 cm |
| 3 µm | 0.0003 cm |
| 5 µm | 0.0005 cm |
| 10 µm | 0.001 cm |
| 20 µm | 0.002 cm |
| 25 µm | 0.0025 cm |
| 50 µm | 0.005 cm |
| 100 µm | 0.01 cm |
| 250 µm | 0.025 cm |
| 500 µm | 0.05 cm |
| 1,000 µm | 0.1 cm |
How to convert micrometres to centimetres
Multiply by 0.0001 — one micrometre is 0.0001 centimetres. That factor is exact: it comes from the definition of the units rather than from a measurement, so it will not change and does not need rounding.
Working 1 ÷ 10,000 = 0.0001
What these units are
The micrometre and the centimetre are covered in the length unit guide, along with every other unit on this page.
Questions
How many centimetres are in a micrometre?
One micrometre is 0.0001 centimetres. This figure is exact — it comes from the definition of the unit, not a measurement.
What is 1 micrometre in centimetres?
1 micrometre is 0.0001 centimetres. The working is 1 ÷ 10,000 = 0.0001.
Is an inch exactly 2.54 centimetres?
Yes, exactly. Since 1959 the international inch has been defined as 25.4 millimetres, so the figure is a definition rather than a measurement. Every foot, yard and mile figure on this page follows from it and is equally exact.
Why is a nautical mile different from a mile?
It is tied to the Earth rather than to a body part. One nautical mile is one minute of latitude, fixed at exactly 1,852 metres, which makes chart work straightforward for anyone navigating by degrees.
How do I write my height in metric?
Convert the whole thing to inches first, then multiply by 2.54. Five foot ten is 70 inches, which is 177.8 cm. Converting the feet and the inches separately is where the arithmetic usually goes wrong.
Meter or metre?
Both name the same unit. "Metre" is the international spelling used by the SI and most English-speaking countries; "meter" is standard in the United States. Either spelling will find this page.