Square Centimeters to Square Millimeters Converter
Convert square centimeters (cm²) to square millimeters (mm²), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter an area, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 cm² = 100 mm²
- 1 × 100 = 100 mm²
How to convert square centimeters to square millimeters
1 cm² = 100 mm², so multiply by 100 to go from square centimeters to square millimeters. Going the other way, 1 mm² = 0.01 cm².
mm² = cm² × 100 cm² = mm² × 0.01
Worked example:
1 cm² = 100 mm² 5 × 100 = 500 mm²
Square Centimeters to square millimeters table
| Square Centimeters | Square Millimeters |
|---|---|
| 1 cm² | 100 mm² |
| 2 cm² | 200 mm² |
| 3 cm² | 300 mm² |
| 4 cm² | 400 mm² |
| 5 cm² | 500 mm² |
| 6 cm² | 600 mm² |
| 7 cm² | 700 mm² |
| 8 cm² | 800 mm² |
| 9 cm² | 900 mm² |
| 10 cm² | 1,000 mm² |
| 15 cm² | 1,500 mm² |
| 20 cm² | 2,000 mm² |
| 25 cm² | 2,500 mm² |
| 30 cm² | 3,000 mm² |
| 40 cm² | 4,000 mm² |
| 50 cm² | 5,000 mm² |
| 75 cm² | 7,500 mm² |
| 100 cm² | 10,000 mm² |
| 250 cm² | 25,000 mm² |
| 500 cm² | 50,000 mm² |
| 1000 cm² | 100,000 mm² |
About the units
- Square Centimeters (cm²)
- Square centimeters, a metric unit. Definition: BIPM SI Brochure (SI prefixes).
- Square Millimeters (mm²)
- Square millimeters, a metric unit. Definition: BIPM SI Brochure (SI prefixes).
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