Convert square millimetres (mm²) to square centimetres (cm²).
Edit either value. Decimals and scientific notation supported.
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1 mm² ≈ 0.01 cm²
Precision changes displayed rounding, not calculation accuracy.
cm² = mm² ÷ 100cm² = mm² ÷ 100
Divide the mm² reading by 100.
1 mm² ≈ 0.01 cm²
1 ÷ 100 ≈ 0.01
100 mm² ≈ 1 cm²
100 ÷ 100 ≈ 1
Area factors scale with the square of the length factor. For example, 1 ft = 0.3048 m gives 1 ft² = 0.3048² m² = 0.09290304 m².
Fixed reference · Square millimetre to Square centimetre
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
| Square millimetre (mm²) | Square centimetre (cm²) |
|---|---|
| 0 | 0 |
| 0.1 | 0.001 |
| 0.5 | 0.005 |
| 1 | 0.01 |
| 2 | 0.02 |
| 5 | 0.05 |
| 10 | 0.1 |
| 25 | 0.25 |
| 50 | 0.5 |
| 100 | 1 |
| 1000 | 10 |
m · km · cm and more
kg · g · mg and more
m² · km² · cm² and more
L · mL · m³ and more
°C · °F · K and more
m/s · km/h · mph and more
Pa · kPa · MPa and more
J · kJ · MJ and more
W · kW · MW and more
B · b · kB and more
px · pt · pc and more
s · ms · µs and more
° · rad · gon and more
Hz · kHz · MHz and more
N · kN · lbf and more
bit/s · kbit/s · Mbit/s and more
L/100 km · km/L · mpg (US) and more
kg/m³ · g/cm³ · g/L and more
No matching category. Try “length”, “pounds”, “GB” or “temperature”.