📏 cm to nm — Centimeter to Nanometer Converter

Convert length and distance units — meters, feet, inches, kilometers, miles, light years and more.

1 unit =
From
To
Formula 1 cm = 10000000 nm
UnitNameValue
0.001 cm10000 nm
0.01 cm100000 nm
0.1 cm1e+06 nm
1 cm1e+07 nm
5 cm5e+07 nm
10 cm1e+08 nm
50 cm5e+08 nm
100 cm1e+09 nm
1000 cm1e+10 nm

How to convert Centimeter to Nanometer

Multiply the number of Centimeters by 10000000 to get Nanometers. Formula: nm = cm × 10000000. Example: 10 cm × 10000000 = 100000000 nm. To reverse, divide Nanometers by 10000000 to get Centimeters.

Worked examples

Example 1
1 cm × 10000000 = 10000000 nm
1 Centimeter equals 10000000 Nanometer.
Example 2
5 cm × 10000000 = 50000000 nm
5 Centimeter equals 50000000 Nanometer.
Example 3
10 cm × 10000000 = 100000000 nm
10 Centimeter equals 100000000 Nanometer.
Example 4 — reverse
1 nm = 1e-07 cm
To convert back from Nanometer to Centimeter, divide by 10000000 or use the swap button above.

Centimeter to Nanometer — reference table

Centimeter (cm)Nanometer (nm)
0.001 cm10000 nm
0.01 cm100000 nm
0.1 cm1000000 nm
0.5 cm5000000 nm
1 cm10000000 nm
2 cm20000000 nm
5 cm50000000 nm
10 cm100000000 nm
20 cm200000000 nm
50 cm500000000 nm
100 cm1000000000 nm
250 cm2500000000 nm
500 cm5000000000 nm
1000 cm10000000000 nm
10000 cm100000000000 nm

Quick conversion tips

1
Multiply by 10000000

To convert Centimeter to Nanometer, multiply by 10000000. Example: 10 cm = 100000000 nm

2
Reverse: divide by 10000000

To convert Nanometer back to Centimeter, divide by 10000000 (multiply by 1e-07). Use the swap button above.

3
Round number check

Start with 100 Centimeters = 1000000000 nm as your reference point. Scale up or down from there.

Where centimeter to nanometer conversion is used

Nanotechnology research

Nanoparticle sizes range from 1–100 nm while reaction vessels and substrate samples are measured in centimeters. Researchers convert cm to nm constantly when correlating bulk material dimensions with nanoparticle distribution data.

Semiconductor chip design

Chip wafers are 20–30 cm in diameter but transistor features are 2–5 nm wide. Engineers spanning both scales convert cm to nm when mapping process parameters across wafer-scale and atomic-scale measurements.

Optical spectroscopy

Spectrometer grating dimensions and slit widths are specified in centimeters, while wavelengths of light measured by the instrument are in nanometers — both units appear in every spectrometer specification sheet.

Cosmetics & sunscreen science

UV filter particles in sunscreen must be under 100 nm to be transparent. Formulation chemists specify ingredient quantities in grams and sample film thicknesses in centimeters, converting to nm for particle characterisation.

Display technology

LCD and OLED pixel pitches are measured in micrometers and nanometers while overall screen and panel dimensions use centimeters — display engineers work across both scales in every product specification.

Medical diagnostics

Point-of-care diagnostic devices are sized in centimeters while the biological markers they detect (proteins, viral particles) are measured in nanometers — biomedical engineers convert between cm and nm in device design.

Frequently asked questions

1 Centimeter equals 10000000 Nanometers. Multiply any Centimeter value by 10000000 to get Nanometers.
10 Centimeters equals 100000000 Nanometers. (10 × 10000000 = 100000000)
100 Centimeters equals 1000000000 Nanometers. (100 × 10000000 = 1000000000)
Divide Nanometer by 10000000 to get Centimeters. Or multiply by 1e-07. Use the swap button on the converter above for instant reverse conversion.
Formula: nm = cm × 10000000. Example: 5 cm × 10000000 = 50000000 nm.
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About Centimeter and Nanometer

Centimeter (cm)

The Centimeter is a unit of Length measurement (symbol: cm). 1 cm = 10000000 nm. Used in scientific and practical Length measurement applications.

Nanometer (nm)

The Nanometer is a unit of Length measurement (symbol: nm). It is part of an internationally recognised measurement system used alongside the Centimeter.

History & origin

The centimetre was introduced in 1795 as part of the French metric system — one-hundredth of a metre, from the Latin 'centum' (hundred). The CGS (centimetre-gram-second) system, built around the centimetre, became the dominant scientific measurement system in the 19th century and remains standard in astrophysics and electromagnetism today. The centimetre is now the primary unit for human body measurements, clothing sizes, and everyday objects in most of the world.

The nanometre owes its name to the Greek 'nanos' (dwarf) combined with metre. The prefix 'nano' was formally adopted by the International Committee for Weights and Measures in 1960 as part of the SI prefix system. Before the nanometre became standard, scientists used angstroms (1 nm = 10 Å) for atomic-scale measurements. The nanometre rose to prominence in the 1980s and 1990s alongside the development of nanotechnology and semiconductor manufacturing, where feature sizes first reached the nanometre scale around 1995.

Common use: Centimeter to Nanometer conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Length measurement.