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1 decimeter (dm) = 100 millimeters (mm). To convert dm to mm, multiply the length value by the conversion factor 100.
Number of decimeters × 100 = Value in millimeters
1 dm = 1 × 100 = 100 mm
| Decimeters [dm] | Millimeters [mm] |
| 1 | 100 |
| 2 | 200 |
| 3 | 300 |
| 4 | 400 |
| 5 | 500 |
| 6 | 600 |
| 7 | 700 |
| 8 | 800 |
| 9 | 900 |
| 10 | 1000 |
| 11 | 1100 |
| 12 | 1200 |
| 13 | 1300 |
| 14 | 1400 |
| 15 | 1500 |
| 16 | 1600 |
| 17 | 1700 |
| 18 | 1800 |
| 19 | 1900 |
| 20 | 2000 |
How many millimeters are there in a decimeter?
There are 100 millimeters in a decimeter.
Which is the bigger unit?
Decimeter is the bigger unit than millimeter.