Centimeter (cm)
A centimeter is one hundredth of a meter, sitting between the millimeter and the meter on the metric scale.
Centimeters are common on rulers, in clothing and body measurements worldwide, and in school science labs.
Centimeter to Millimeter
Convert centimeter to millimeter instantly. Type in either field — results update live.
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Length Centimeter Millimeter
1 centimeter = 10 millimeters
Unit
Unit
Conversion table
Selected cm values converted to mm using the exact factor from this tool.
| cm | mm |
|---|---|
| 0.01 | 0.1 |
| 0.1 | 1 |
| 1 | 10 |
| 2 | 20 |
| 3 | 30 |
| 5 | 50 |
| 10 | 100 |
| 20 | 200 |
| 50 | 500 |
| 100 | 1,000 |
| 1,000 | 10,000 |
How to convert
Exact conversion factors in both directions, plus a worked example.
1 cm = 10 mm
1 mm = 0.1 cm
To convert centimeter to millimeter, multiply by 10.
To convert millimeter to centimeter, multiply by 0.1.
Example: convert 15 cm to mm
15 × 10 = 150 mm
About these units
Short background on the units used in this conversion.
Millimeter (mm)
A millimeter is one thousandth of a meter — the metric workhorse for fine measurements and manufacturing tolerances.
Millimeters are used in engineering drawings, rainfall totals, and anywhere sub-centimeter precision matters.
Frequently asked questions
How many millimeters are in one centimeter?
One centimeter equals 10 millimeters. Multiply your centimeters value by 10 to convert to millimeters.
What is the conversion formula?
mm = cm × 10The reverse is
cm = mm × 0.1, using the same exact factors as this converter.Is this Centimeter to Millimeter converter private?
Yes. All calculations run locally in your browser. Nothing you type is sent to a server.
All centimeter conversions
Jump to any length conversion starting from centimeter — including the reverse direction and every other unit in our dataset.
millimeter (mm) → centimeter (cm)
centimeter (cm) → kilometer (km)centimeter (cm) → meter (m)centimeter (cm) → decimeter (dm)centimeter (cm) → micrometer (µm)centimeter (cm) → nanometer (nm)centimeter (cm) → mile (mi)centimeter (cm) → yard (yd)centimeter (cm) → foot (ft)centimeter (cm) → inch (in)centimeter (cm) → light year (ly)centimeter (cm) → exameter (Em)centimeter (cm) → petameter (Pm)centimeter (cm) → terameter (Tm)centimeter (cm) → gigameter (Gm)centimeter (cm) → megameter (Mm)centimeter (cm) → hectometer (hm)centimeter (cm) → dekameter (dam)centimeter (cm) → micron (µ)centimeter (cm) → picometer (pm)centimeter (cm) → femtometer (fm)centimeter (cm) → attometer (am)centimeter (cm) → megaparsec (Mpc)centimeter (cm) → kiloparsec (kpc)centimeter (cm) → parsec (pc)centimeter (cm) → astronomical unit (AU)centimeter (cm) → league (lea)centimeter (cm) → nautical league (uk)centimeter (cm) → nautical league (int.)centimeter (cm) → league (statute) (st.league)centimeter (cm) → nautical mile (uk) (NM-UK)centimeter (cm) → nautical mile (international) (nmi)centimeter (cm) → mile (statute)centimeter (cm) → mile (us survey)centimeter (cm) → mile (roman) (mi-Roman)centimeter (cm) → kiloyard (kyd)centimeter (cm) → furlong (fur)centimeter (cm) → furlong (us survey)centimeter (cm) → chain (ch)centimeter (cm) → chain (us survey)centimeter (cm) → ropecentimeter (cm) → rod (rd)centimeter (cm) → rod (us survey)centimeter (cm) → perchcentimeter (cm) → polecentimeter (cm) → fathom (fath)centimeter (cm) → fathom (us survey)centimeter (cm) → ellcentimeter (cm) → foot (us survey)centimeter (cm) → link (li)centimeter (cm) → link (us survey)centimeter (cm) → cubit (uk)centimeter (cm) → handcentimeter (cm) → span (cloth)centimeter (cm) → finger (cloth)centimeter (cm) → nail (cloth)centimeter (cm) → inch (us survey)centimeter (cm) → barleycorncentimeter (cm) → milcentimeter (cm) → microinch (µin)centimeter (cm) → angstrom (Å)centimeter (cm) → a.u. of lengthcentimeter (cm) → x-unit (X)centimeter (cm) → fermi (F)centimeter (cm) → arpentcentimeter (cm) → picacentimeter (cm) → point (pt)centimeter (cm) → twipcentimeter (cm) → alncentimeter (cm) → famncentimeter (cm) → caliber (cl)centimeter (cm) → centiinch (cin)centimeter (cm) → kencentimeter (cm) → russian archin (archin)centimeter (cm) → roman actus (actus)centimeter (cm) → vara de tareacentimeter (cm) → vara conuqueracentimeter (cm) → vara castellanacentimeter (cm) → cubit (greek)centimeter (cm) → long reedcentimeter (cm) → reedcentimeter (cm) → long cubitcentimeter (cm) → handbreadthcentimeter (cm) → fingerbreadthcentimeter (cm) → planck lengthcentimeter (cm) → electron radius (classical) (re)centimeter (cm) → bohr radius (b)centimeter (cm) → earth's equatorial radius (R⊕eq)centimeter (cm) → earth's polar radius (R⊕pol)centimeter (cm) → earth's distance from suncentimeter (cm) → sun's radius