Micrometers to Centimeters Converter
Enter the length in micrometers below to convert it to centimeters.
Convert Micrometers to Centimeters
Enter a value in micrometers (µm) to convert to centimeters (cm).
Micrometers to Centimeters Conversion Chart (1–40 Continuous)
Continuous 1 to 40 micrometers lookup table with exact decimals and reduced nearest 1/64 fractions. Highlighted rows mark common shop and ruler values.
| Micrometers (µm) | Decimal (cm) | Fraction — Nearest 1/64 (Reduced) | Nearest 1/16 (Tape) |
|---|---|---|---|
1 µm★ Common | 0.0001 cm | 0 cm | 0 cm |
2 µm★ Common | 0.0002 cm | 0 cm | 0 cm |
3 µm★ Common | 0.0003 cm | 0 cm | 0 cm |
4 µm | 0.0004 cm | 0 cm | 0 cm |
5 µm★ Common | 0.0005 cm | 0 cm | 0 cm |
6 µm★ Common | 0.0006 cm | 0 cm | 0 cm |
7 µm | 0.0007 cm | 0 cm | 0 cm |
8 µm★ Common | 0.0008 cm | 0 cm | 0 cm |
9 µm | 0.0009 cm | 0 cm | 0 cm |
10 µm★ Common | 0.001 cm | 0 cm | 0 cm |
11 µm | 0.0011 cm | 0 cm | 0 cm |
12 µm★ Common | 0.0012 cm | 0 cm | 0 cm |
How to Convert Micrometers to Centimeters
To convert micrometers to centimeters, multiply the length by the following conversion ratio: 0.0001 centimeters/micrometer.
Since one micrometer is equal to 0.0001 centimeters, you can use this simple formula to convert:
The length in centimeters is equal to the length in micrometers multiplied by 0.0001.
For example, here's how to convert 5 micrometers to centimeters using the formula above.
How Many Centimeters Are in a Micrometer?
There are 0.0001 centimeters in a micrometer, which is why we use this value in the formula above.
Our micrometer fraction and decimal calculator can convert micrometers and centimeters, and it automatically converts the results to US customary, imperial, and SI metric values.
Micrometers and centimeters are both units used to measure length. Keep reading to learn more about each unit.
How to Convert Micrometers to Fractional Inches (1/16″, 1/32″ & 1/64″)
Plain-language method for turning decimal inches into a standard tape-measure or machinist ruler fraction
Calculators give you a decimal number (such as 0.000197 in), but tape measures and woodworking rulers are marked in binary fractions of an inch—most commonly 1/16″ on carpenter tapes, 1/32″ on fine woodworking rules, and 1/64″ on machinist scales.
Here is the step-by-step worked example for converting 5 micrometers (µm) into fractional inches:
- Find the decimal inches result: Convert 5 µm to inches to get 0.000197 in.
- Separate the whole inches from the decimal part: Keep the whole number 0 aside, leaving the decimal remainder 0.000197.
- Multiply the decimal part by your desired fraction denominator (16, 32, or 64) and round half up: Multiply 0.000197 by 16, 32, or 64, then round to the nearest whole number (values ending in .5 round up).
- Reduce the fraction to lowest terms: If the rounded top number (numerator) is even, divide both top and bottom by 2 (or their Greatest Common Divisor) until the top number is odd, then combine with your whole inches.
What Is a Micrometer?
A micrometer is a unit of length equal to 1/1,000,000 of a meter (0.000001 m). One millionth of a meter (10⁻⁶ m), also known as a micron. [1]
The micrometer is classified as a metric and SI-compatible unit of length. Micrometers can be abbreviated as µm; for example, 1 micrometer can be written as 1 µm.
In the metric system, "micro" is the standard SI prefix for millionths, or 10⁻⁶. This makes the micrometer (µm) a convenient decimal multiple of the meter (m).
In practice, micrometers (µm) are widely used across fine-tolerance laboratory, analytical, and micro-scale length measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Centimeter?
A centimeter is a metric unit of length equal to one-hundredth (1/100) of a meter, which is the International System of Units (SI) base unit of length. One centimeter is also equal to 10 millimeters or approximately 0.39370079 inches. [2]
The centimeter, or centimetre, is part of the SI metric system used worldwide for everyday, scientific, and clinical measurements. Centimeters can be abbreviated as cm; for example, 1 centimeter can be written as 1 cm.
In the metric system, "centi" is the Latin-derived prefix for hundredths, or 10⁻². Because 1 international inch is legally defined as 2.54 centimeters, converting between centimeters and inches is anchored by an exact mathematical constant.
Centimeters are measured using metric rulers, tailor's measuring tapes, stadiometers (for human height), and vernier calipers across carpentry, apparel sizing, school science, and medical charts.
When converting length between micrometers (µm) and centimeters (cm), keep full floating-point precision (1 µm = 0.0001 cm; 1 cm = 10,000 µm) during intermediate calculations and round only the final centimeter figure to match your instrument tolerance.
More Micrometer & Centimeter Conversions
Need to calculate in the opposite direction? Use our centimeters to micrometers calculator to switch your starting unit immediately. You can also explore related tools such as converting centimeters to micrometers, converting inches to centimeters, or converting feet to centimeters.
Convert from Micrometers
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Length Metrology Standard — Micrometers (µm) to Centimeters (cm)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Micrometer (Micron) (µm) & Centimeter (cm)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (µm to cm)