QConvert
Millimeter to Decimeter Converter
Convert Millimeter to Decimeter instantly — live results with exact conversion factors.
Answer
1 millimeter = 0.01 decimeters. To convert mm to dm, multiply by 0.01.
Quick Reference Table
| Millimeter (mm) | Decimeter (dm) |
|---|---|
| 1 | 0.01 |
| 2 | 0.02 |
| 5 | 0.05 |
| 10 | 0.1 |
| 20 | 0.2 |
| 50 | 0.5 |
| 100 | 1 |
| 250 | 2.5 |
| 500 | 5 |
| 1000 | 10 |
Formula
Convert Millimeter (mm) to Decimeter (dm) using the relationship:
dm = mm × 0.01
How to Convert
- Take the value in millimeters (mm).
- Multiply it by 0.01 (the conversion factor from mm to dm).
- The result is the equivalent value in decimeters (dm).
- Example: 1 mm = 0.01 dm.
Reverse Conversion
Need it the other direction? Decimeter to Millimeter conversion.
All Length Conversions
See the full list of Length conversions.
Related Conversions
FAQ
▸ How many decimeters are in 1 millimeter?
1 Millimeter equals 0.01 decimeters. Multiply by 0.01 to convert mm to dm.
▸ What is the formula to convert millimeter to decimeter?
Multiply the value in millimeters by 0.01 to get decimeters. Formula: dm = mm × 0.01.
▸ How do I convert millimeters to decimeters easily?
Enter your value in the converter at the top of this page — the decimeters result updates live as you type. You can also multiply by 0.01 directly.