1 mm to cm
1 mm = 0.1 cm
1 millimeter equals 0.1 centimeters.
How to convert 1 mm to cm
Use the formula cm = mm ÷ 10:
cm = 1 ÷ 10cm = 0.1
So 1 mm = 0.1 cm.
Rounded values and quick estimate
- Rounded to a whole number: 0 cm
- Rounded to one decimal place: 0.1 cm
- Conversion factor: 1 millimeter = 0.1 centimeters
This conversion is exact, so there is no need to estimate: just divide by 10.
1 mm in other units
- Centimeters
- 0.1 cm
- Meters
- 0.001 m
- Kilometers
- 0.000001 km
- Inches
- 0.0394 in
- Feet
- 0.003281 ft
- Yards
- 0.001094 yd
- Micrometers
- 1000 µm
- Hands
- 0.009843 hh
- Mils (thou)
- 39.37 mil
1 mm and nearby values
| Millimeters | Centimeters |
|---|---|
| 1 mm | 0.1 cm |
| 2 mm | 0.2 cm |
| 3 mm | 0.3 cm |
| 4 mm | 0.4 cm |
| 5 mm | 0.5 cm |
About millimeters and centimeters
A millimeter is one thousandth of a meter (0.1 cm). It is used for small, precise measurements like rainfall, screws and paper thickness.
A centimeter is one hundredth of a meter. It is the everyday metric unit for body height, clothing and short lengths.
Related conversions
Frequently asked questions
What is 1 mm in cm?
1 millimeter is 0.1 centimeters (1 mm = 0.1 cm).
How do you convert 1 mm to cm?
Apply cm = mm ÷ 10: cm = 1 ÷ 10, cm = 0.1.
How many millimeters is 0.1 cm?
0.1 cm is about 1 millimeter.