square centimetre (cm²)
1 square centimetre = 0.0001 square metres
What is square centimetre?
A square centimetre is a metric unit of area equal to one ten-thousandth of a square metre. It is used in textiles, printing, medical surface measurements, and small-scale technical applications.
Notes: Metric unit
Real-world uses
Square centimetres are used for cross-sectional areas of cables and pipes, skin wound sizes in medicine, and stamp collecting. PCB (printed circuit board) dimensions and bandage sizes are often specified in cm².
History
The square centimetre was the base area unit in the CGS system and was widely used in physics before SI standardization. It remains commonly used in everyday contexts where square metres are too large a unit for practical description.
Common mistakes
Confusing cm² with mm²—there are 100 mm² in 1 cm², not 10. This is a common error when converting between metric area units because area scales as the square of the linear conversion factor.
When is this conversion used?
Converting square centimetre to square metre is useful in the area domain when comparing values across different measurement standards or applying formulas that require a specific unit.
How to convert square centimetre to square metre
To convert square centimetre to square metre, multiply the value by 0.0001.
Conversion formula (from base unit)
x * 1e-4
Measurement standards
The square metre is the SI derived unit of area. The hectare (10,000 m²) is accepted for use with the SI by the BIPM, particularly for land measurement, though it is not an SI unit itself.
Did you know?
Vatican City, the world's smallest independent state, covers just 0.44 km² (about 109 acres) — smaller than many golf courses. By contrast, Russia spans over 17.1 million km², nearly 39 million times larger.
| square centimetres | square metres |
|---|---|
| 0.1 | 0.00001 |
| 0.5 | 0.00005 |
| 1 | 0.0001 |
| 2 | 0.0002 |
| 5 | 0.0005 |
| 10 | 0.001 |
| 25 | 0.0025 |
| 50 | 0.005 |
| 100 | 0.01 |
| 250 | 0.025 |
| 500 | 0.05 |
| 1,000 | 0.1 |
Common values
| square centimetres | square metres | |
|---|---|---|
| A4 paper | 620 square centimetres | 0.062 square metres |
| Parking space | 125,000 square centimetres | 12.5 square metres |
| Tennis court | 2,608,700 square centimetres | 260.87 square metres |
| Football field (soccer) | 71,400,000 square centimetres | 7,140 square metres |
| Central Park, NYC | 3.410000e+10 square centimetres | 3,410,000 square metres |
Full square centimetre conversion table
| Unit | Value | Factor |
|---|---|---|
| square metre | 1 cm² = 0.0001 m² | × 0.0001 |
| square kilometre | 1 cm² = 1.000000e-10 km² | × 1.000000e-10 |
| square foot | 1 cm² = 0.00107639 ft² | × 0.00107639 |
| square mile | 1 cm² = 3.861022e-11 mi² | × 3.861022e-11 |
| acre | 1 cm² = 2.471054e-08 ac | × 2.471054e-08 |
| hectare | 1 cm² = 1.000000e-08 ha | × 1.000000e-08 |
| square inch | 1 cm² = 0.15500031 in² | × 0.15500031 |
| square yard | 1 cm² = 0.0001196 yd² | × 0.0001196 |
| are | 1 cm² = 0.000001 a | × 0.000001 |