Convert cm to mm instantly — with a table, common fractions, and a live calculator.
1 cm equals 10 mm.
| cm | mm |
|---|---|
| 0.25 cm | 2.5 mm |
| 0.5 cm | 5 mm |
| 0.75 cm | 7.5 mm |
| 1 cm | 10 mm |
| 1.5 cm | 15 mm |
| 2 cm | 20 mm |
| 2.5 cm | 25 mm |
| 3 cm | 30 mm |
| 4 cm | 40 mm |
| 5 cm | 50 mm |
| 6 cm | 60 mm |
| 8 cm | 80 mm |
| 10 cm | 100 mm |
| 12 cm | 120 mm |
| 14.5 cm | 145 mm |
| 15 cm | 150 mm |
| 16 cm | 160 mm |
| 20 cm | 200 mm |
| 24 cm | 240 mm |
| 36 cm | 360 mm |
| 50 cm | 500 mm |
| 100 cm | 1000 mm |
| mm | cm |
|---|---|
| 0.25 mm | 0.025 cm |
| 0.5 mm | 0.05 cm |
| 0.75 mm | 0.075 cm |
| 1 mm | 0.1 cm |
| 1.5 mm | 0.15 cm |
| 2 mm | 0.2 cm |
| 2.5 mm | 0.25 cm |
| 3 mm | 0.3 cm |
| 4 mm | 0.4 cm |
| 5 mm | 0.5 cm |
| 6 mm | 0.6 cm |
| 8 mm | 0.8 cm |
| 10 mm | 1 cm |
| 12 mm | 1.2 cm |
| 14.5 mm | 1.45 cm |
| 15 mm | 1.5 cm |
| 16 mm | 1.6 cm |
| 20 mm | 2 cm |
| 24 mm | 2.4 cm |
| 36 mm | 3.6 cm |
| 50 mm | 5 cm |
| 100 mm | 10 cm |
| cm | mm |
|---|---|
| 1/16 cm | 0.625 mm |
| 1/8 cm | 1.25 mm |
| 3/16 cm | 1.88 mm |
| 1/4 cm | 2.5 mm |
| 3/8 cm | 3.75 mm |
| 1/2 cm | 5 mm |
| 5/8 cm | 6.25 mm |
| 3/4 cm | 7.5 mm |
| 1 cm | 10 mm |
| 1 1/4 cm | 12.5 mm |
| 1 1/2 cm | 15 mm |
| 2 cm | 20 mm |
Inches, feet, yards, and miles belong to the imperial/US system, while millimeters, centimeters, meters, and kilometers are metric. One international inch is defined as exactly 25.4 mm.
Length-to-length conversions are exact and rest on fixed factors — for more unit pairs, use our length conversion hub.
1 cm equals 10 mm.
2 cm equal 20 mm.
Multiply the number of cm by 10 to get mm.
Yes. Length-to-length conversions are exact; the values here are only rounded to two decimal places.
Inches, feet, yards, and miles belong to the imperial/US system, while millimeters, centimeters, meters, and kilometers are metric. All conversions rest on fixed, exact factors.
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