Square Millimeters to Square Centimeters (mm² to cm²) Converter
1 square millimeter (mm²) = 0.01 square centimeters (cm²). To convert square millimeters to square centimeters, multiply by 0.01: 25 mm² × 0.01 = 0.25 cm². Also searched as square millimetres to square centimetres.
Quick facts
- 1 mm² = 0.01 cm²
- 1 cm² = 100 mm²
- Formula: cm² = mm² × 0.01
- Quick estimate: multiply by about 0.01
How to convert square millimeters to square centimeters
- Take the value in square millimeters.
- Multiply it by 0.01 (the number of square centimeters in one square millimeter).
- Round the result to the precision you need.
Worked example: 25 mm² × 0.01 = 0.25 cm².
To convert square centimeters back to square millimeters, multiply by 100, or divide by 0.01.
Source: NIST SP 811 (2008). Marla and kanal use the Punjab standard stated in their definitions; local sizes can differ.
Square Millimeters to Square Centimeters conversion table
| Square Millimeters [mm²] | Square Centimeters [cm²] |
|---|---|
| 0.01 mm² | 0.0001 cm² |
| 0.1 mm² | 0.001 cm² |
| 1 mm² | 0.01 cm² |
| 2 mm² | 0.02 cm² |
| 3 mm² | 0.03 cm² |
| 5 mm² | 0.05 cm² |
| 10 mm² | 0.1 cm² |
| 20 mm² | 0.2 cm² |
| 50 mm² | 0.5 cm² |
| 100 mm² | 1 cm² |
| 1000 mm² | 10 cm² |
mm² to cm² chart from 1 to 100
- 1 mm² 0.01 cm²
- 2 mm² 0.02 cm²
- 3 mm² 0.03 cm²
- 4 mm² 0.04 cm²
- 5 mm² 0.05 cm²
- 6 mm² 0.06 cm²
- 7 mm² 0.07 cm²
- 8 mm² 0.08 cm²
- 9 mm² 0.09 cm²
- 10 mm² 0.1 cm²
- 11 mm² 0.11 cm²
- 12 mm² 0.12 cm²
- 13 mm² 0.13 cm²
- 14 mm² 0.14 cm²
- 15 mm² 0.15 cm²
- 16 mm² 0.16 cm²
- 17 mm² 0.17 cm²
- 18 mm² 0.18 cm²
- 19 mm² 0.19 cm²
- 20 mm² 0.2 cm²
- 25 mm² 0.25 cm²
- 30 mm² 0.3 cm²
- 35 mm² 0.35 cm²
- 40 mm² 0.4 cm²
- 45 mm² 0.45 cm²
- 50 mm² 0.5 cm²
- 55 mm² 0.55 cm²
- 60 mm² 0.6 cm²
- 65 mm² 0.65 cm²
- 70 mm² 0.7 cm²
- 75 mm² 0.75 cm²
- 80 mm² 0.8 cm²
- 85 mm² 0.85 cm²
- 90 mm² 0.9 cm²
- 95 mm² 0.95 cm²
- 100 mm² 1 cm²
Square Centimeters to Square Millimeters conversion table
| Square Centimeters [cm²] | Square Millimeters [mm²] |
|---|---|
| 0.01 cm² | 1 mm² |
| 0.1 cm² | 10 mm² |
| 1 cm² | 100 mm² |
| 2 cm² | 200 mm² |
| 3 cm² | 300 mm² |
| 5 cm² | 500 mm² |
| 10 cm² | 1000 mm² |
| 20 cm² | 2000 mm² |
| 50 cm² | 5000 mm² |
| 100 cm² | 10000 mm² |
| 1000 cm² | 100000 mm² |
Square Millimeters vs Square Centimeters
| Square Millimeter | Square Centimeter | |
|---|---|---|
| Symbol | mm² | cm² |
| Equals | 1 mm² = 0.01 cm² | 1 cm² = 100 mm² |
What is a square millimeter?
The area of a square with 1-millimeter sides. Used for precise engineering cross-sections.
What is a square centimeter?
The area of a square with 1-centimeter sides. Used for small object surface areas.
Frequently asked questions
How many square centimeters are in a square millimeter?
There are 0.01 square centimeters in 1 square millimeter (1 mm² = 0.01 cm²).
How many square millimeters are in a square centimeter?
There are 100 square millimeters in 1 square centimeter (1 cm² = 100 mm²).
How do I convert square millimeters to square centimeters?
Multiply the number of square millimeters by 0.01. For example, 10 mm² × 0.01 = 0.1 cm². To convert back, multiply by 100.
What is 10 mm² in square centimeters?
10 mm² = 0.1 cm².
What is 100 mm² in square centimeters?
100 mm² = 1 cm².
Is the conversion exact?
Yes. The factor comes from the official definitions of both units (NIST SP 811 (2008). Marla and kanal use the Punjab standard stated in their definitions; local sizes can differ). Results are shown to up to 10 decimal places; round them to suit your purpose.
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