Difference between Millimeters (mm) to Centimeters (cm)
Millimeter (mm) and Centimeter (cm) are both small units of length used in the metric system. The main difference is their size — a centimeter is bigger, and a millimeter is smaller. There are 10 millimeters in 1 centimeter. Both are commonly used for measuring short distances, small objects, and dimensions in daily life.
Basis of Comparison
Millimeters (mm)
Centimeters (cm)
Meaning
A very small unit of length used to measure tiny distances or objects.
A small unit of length used to measure short distances.
Measurement System
Metric system
Metric system
Symbol
mm
cm
Conversion Value
1 millimeter = 0.1 centimeter
1 centimeter = 10 millimeters
Size
Smaller unit
Bigger unit
Used In
Measuring thickness, small parts, and precise lengths.
Measuring objects like pencils, notebooks, and small furniture.
Common Usage
Used when very accurate or tiny measurements are needed.
Used for short but more visible measurements.
Example
5 mm = 0.5 cm
10 cm = 100 mm
Millimeters (mm) to Centimeters (cm) Conversion Table
Millimeters (mm)
Centimeters (cm)
1 mm
0.10 cm
2 mm
0.20 cm
3 mm
0.30 cm
4 mm
0.40 cm
5 mm
0.50 cm
10 mm
1.00 cm
15 mm
1.50 cm
20 mm
2.00 cm
25 mm
2.50 cm
50 mm
5.00 cm
100 mm
10.00 cm
1000 mm
100.00 cm
Millimeters (mm) to Centimeters (cm) – Most Frequently Asked Questions