Convert Decimeter to Millimeter
Enter the number of decimeters that you want to convert to millimeters.
How to Convert Decimeters to Millimeters
The decimeter and millimeter are both units of length. By definition, 1 decimeter equals exactly 100 millimeters. This means to convert decimeters to millimeters, you multiply by 100.
Formula
Step-by-Step Example
Convert 5 dm to millimeters:
We need to convert decimeters to millimeters
Since 1 dm = 100 mm, multiply by 100
5 × 100 = 500
5 dm = 500 mm
Decimeter to Millimeter Conversion Table
Quick reference table for common decimeter to millimeter conversions. Click any value for detailed calculation.
| Decimeters (dm) | Millimeters (mm) |
|---|---|
| 1 dm | 100 mm |
| 2 dm | 200 mm |
| 5 dm | 500 mm |
| 10 dm | 1000 mm |
| 15 dm | 1500 mm |
| 20 dm | 2000 mm |
| 25 dm | 2500 mm |
| 50 dm | 5000 mm |
| 100 dm | 10000 mm |
About These Units
Decimeter (dm)
A decimeter (dm) is a metric unit of length equal to 1/10 of a meter, 10 centimeters, or approximately 3.94 inches. Decimeters are commonly used in Europe for measuring furniture dimensions, fabric lengths, and in educational contexts.
Millimeter (mm)
A millimeter (mm) is a metric unit of length equal to 1/1000 of a meter or 0.03937 inches. Millimeters are essential for precision measurements in engineering, manufacturing, medical imaging, and rainfall measurements. There are 25.4 mm in one inch.
Frequently Asked Questions
How do I convert decimeters to millimeters?
To convert decimeters to millimeters, multiply the value by 100. For example, 10 dm = 1000 mm.
How many millimeters are in 1 decimeter?
1 decimeter equals 100 millimeters.
What is the formula for decimeters to millimeters?
The formula is: mm = dm × 100.