Convert Square Millimeter to Square Centimeter
Type the number of square millimeters that you wish to convert to square centimeters.
How to Convert Square Millimeters to Square Centimeters
The square millimeter and square centimeter are both units of area. By definition, 1 square centimeter equals exactly 100 square millimeters. This means to convert square millimeters to square centimeters, you divide by 100.
Formula
Step-by-Step Example
Convert 5 mm² to square centimeters:
We need to convert square millimeters to square centimeters
Since 1 cm² = 100 mm², divide by 100
5 ÷ 100 = 0.05
5 mm² = 0.05 cm²
Square Millimeter to Square Centimeter Conversion Table
Quick reference table for common square millimeter to square centimeter conversions. Click any value for detailed calculation.
| Square Millimeters (mm²) | Square Centimeters (cm²) |
|---|---|
| 0.1 mm² | 0.001 cm² |
| 0.5 mm² | 0.005 cm² |
| 1 mm² | 0.01 cm² |
| 2 mm² | 0.02 cm² |
| 5 mm² | 0.05 cm² |
| 10 mm² | 0.1 cm² |
| 25 mm² | 0.25 cm² |
| 50 mm² | 0.5 cm² |
| 100 mm² | 1 cm² |
About These Units
Square Millimeter (mm²)
A square millimeter (mm²) equals 0.00155 square inches or 0.01 square centimeters. Square millimeters measure wire cross-sections, component sizes, and precision engineering. Electrical wire sizes are often specified in mm² (e.g., 2.5 mm² wire).
Square Centimeter (cm²)
A square centimeter (cm²) equals 0.155 square inches or 100 square millimeters. Square centimeters measure small surfaces, skin lesions, paper sizes, and cross-sectional areas. A postage stamp is about 4-6 cm². Commonly used in medical and scientific measurements.
Frequently Asked Questions
How do I convert square millimeters to square centimeters?
To convert square millimeters to square centimeters, divide the value by 100. For example, 10 mm² = 0.1 cm².
How many square centimeters are in 1 square millimeter?
1 square millimeter equals 0.01 square centimeters.
What is the formula for square millimeters to square centimeters?
The formula is: cm² = mm² ÷ 100.