100 square millimeters to square centimeters
100 mm² = 1 cm². Change the amount below, or read the formula and the reference table further down.
100 square millimeters equals
square centimeters
1 mm² = 0.01 cm²
The formula
Square millimeters and square centimeters both measure area from the same zero, so a single multiplier does the job.
cm² = mm² × 0.01
Going the other way? Convert square centimeters to square millimeters.
Square millimeters to square centimeters table
Values either side of 100 mm².
| Square millimeters (mm²) | Square centimeters (cm²) |
|---|---|
| 0 | 0 |
| 10 | 0.1 |
| 20 | 0.2 |
| 30 | 0.3 |
| 40 | 0.4 |
| 50 | 0.5 |
| 60 | 0.6 |
| 70 | 0.7 |
| 80 | 0.8 |
| 90 | 0.9 |
| 100 | 1 |
| 110 | 1.1 |
| 120 | 1.2 |
| 130 | 1.3 |
| 140 | 1.4 |
| 150 | 1.5 |
| 160 | 1.6 |
| 170 | 1.7 |
| 180 | 1.8 |
| 190 | 1.9 |
| 200 | 2 |
Questions people ask
- How many square centimeters are in a square millimeter?
- One square millimeter equals 0.01 square centimeters.
- How do I convert square millimeters to square centimeters by hand?
- Multiply the number of square millimeters by 0.01. For a rough check, 0.01 is close enough for most everyday use.
- What is 100 square millimeters in square centimeters?
- 100 square millimeters is 1 square centimeters.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.