Convert Centimeter to Micrometer
Convert centimeters to micrometers instantly. 1 centimeter = 10000 micrometer — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Micrometer to Centimeter converter for the reverse conversion.
Units explained
Centimeter
A centimeter is a metric unit of length equal to one hundredth of a meter (1/100 m). It is one of the most commonly used SI sub-units in daily life, especially for measuring small objects, body dimensions, paper sizes, and short distances.
The centimeter emerged from the French metric system established by the French Academy of Sciences in 1793. The metric system introduced decimal-based prefixes (milli-, centi-, deci-, deca-, hecto-, kilo-) to create proportional sub-units of the meter.
Centimeters are the standard unit for everyday measurement in nearly every country outside the United States. They are used for body height, clothing sizes, rainfall, paper formats (A4 is 21 × 29.7 cm), screen dimensions, and most consumer product specifications.
Developed in France during the late 18th century as part of the metric system designed by the French Academy of Sciences. Formally adopted in France in 1795 and ratified internationally through the Metre Convention signed in Paris in 1875.
Micrometer
A micrometer (also called a micron) is a metric unit of length equal to one millionth of a meter (1×10⁻⁶ m). It is the standard unit for measuring microscopic dimensions in biology, materials science, and semiconductor manufacturing.
Defined alongside the meter when France adopted the metric system in 1795, using the SI prefix micro- (from Greek mikros, "small") to denote one-millionth.
Micrometers are used to measure cell sizes, bacteria, semiconductor process nodes, fiber diameters, dust particles, and wavelengths of infrared radiation. The diameter of a human hair is about 70 μm.
Defined in 1795 as part of the original French metric system; the name "micron" was officially deprecated by the BIPM in 1967 in favor of micrometer.
Centimeter to Micrometer conversion formula
The relationship between centimeters and micrometers:
To convert centimeters to micrometers, multiply the value in centimeters by 10000. To reverse, multiply micrometers by 0.0001.
How to use this converter
Type a value into the calculator. The result in micrometers updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Micrometer to Centimeter converter for the reverse direction.
Step-by-step: convert centimeters to micrometers
- Write down the value in centimeters (cm).
- Multiply that value by the factor 10000.
- The product is the equivalent value in micrometers (μm).
- To reverse, multiply the micrometer value by 0.0001.
Worked examples
Example 1 — Convert 1 cm to μm:
1 × 10000 = 10000 μm
Example 2 — Convert 100 cm to μm:
100 × 10000 = 1000000 μm
Real-world example — Adjacent metric sub-units
One centimeter equals 1,000 micrometers. Engineers move between these scales constantly: PCB feature sizes in the larger unit, wire-bond diameters in the smaller.
1 cm × 10000 = 10000 μm
Real-world example — Adjacent small-scale precision
One centimeter equals 1,000 micrometers — the standard sub-millimeter precision conversion that materials engineers use whenever they switch between bulk material thickness specs (larger unit) and surface-finish characteristics (smaller unit).
1 cm × 10000 = 10000 μm
Centimeter to Micrometer conversion table
Standard reference values for converting centimeters to micrometers:
| Centimeter [cm] | Micrometer [μm] |
|---|---|
| 0.01 | 100 |
| 0.1 | 1000 |
| 1 | 10000 |
| 2 | 20000 |
| 3 | 30000 |
| 4 | 40000 |
| 5 | 50000 |
| 10 | 100000 |
| 20 | 200000 |
| 30 | 300000 |
| 40 | 400000 |
| 50 | 500000 |
| 100 | 1000000 |
| 500 | 5000000 |
| 1000 | 1e+7 |
Frequently asked questions
How many micrometers is 1 centimeter?
How do I convert centimeters to micrometers?
How do I convert micrometers back to centimeters?
How many micrometers is 100 centimeters?
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Sources & references
Conversion factor (1 cm = 10000 μm) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.