# Convert square millimeters to square centimeters

Enter the number of square millimeters you want to convert to square centimeters in the text box below. The conversion to area in square centimeters will update as you type.

square millimeters (mm2)
1 square millimeters = 0.01 square centimeters

## Precise decimal and fraction answers

The conversion in square centimeters rounded to six significant decimal places is 1 mm2 = 0.0100000 cm2. The precise fraction answer is 1/100 cm2.

### Decimal Precision

Conversion from one to ten decimal places

• 1 mm2 = 0.01 cm2
• 1 mm2 = 0.010 cm2
• 1 mm2 = 0.0100 cm2
• 1 mm2 = 0.01000 cm2
• 1 mm2 = 0.010000 cm2
• 1 mm2 = 0.0100000 cm2
• 1 mm2 = 0.01000000 cm2
• 1 mm2 = 0.010000000 cm2
• 1 mm2 = 0.0100000000 cm2
• 1 mm2 = 0.01000000000 cm2

## Square millimeters to square centimeters conversion factor and formulas

Formula

The conversion factor between square millimeters and square centimeters is 100. This represents the ratio of square millimeters per one square centimeter. To calculate the value in square centimeters, we can either divide by the conversion factor or multiply by its inverse.

### Division

To convert from square millimeters to square centimeters, divide square millimeters by 100.
The formula is expressed as:
mm2 ÷ 100 = cm2

### Multiplication

Alternatively we can multiply by the inverse conversion factor to get the same result.
The inverse of 100 is 1/100 or 0.01. To convert from square millimeters to square centimeters, multiply square millimeters by 0.01.
The formula is expressed as:
mm2 × 0.01 = cm2

A conversion from square millimeters to square centimeters are units within in the metric (SI) or SI compatible systems.

## Reverse this conversion

Convert from square centimeters to square millimeters instead.

## 1 square millimeters to other area units

### Metric

• 1 mm2 = 1×10-10 ha
• 1 mm2 = 1×10-12 km2
• 1 mm2 = 1×10-6 m2
• 1 mm2 = 1×10-4 dm2
• 1 mm2 = 0.01 cm2
• 1 mm2 = 1 mm2
• 1 mm2 = 1,000,000 µ2
• 1 mm2 = 1×1012 nm2

### Imperial/U.S.

• 1 mm2 = 2.471×10-10 acre
• 1 mm2 = 3.861×10-13 sq mi
• 1 mm2 = 1.196×10-6 sq yd
• 1 mm2 = 1.076×10-5 sq ft
• 1 mm2 = 0.002 sq in

## References and Citations

1. International Bureau of Weights and Measures (BIPM) The International System of Units (SI)

mm2 cm2
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
mm2 cm2
20 mm2 0.2 cm2
30 mm2 0.3 cm2
40 mm2 0.4 cm2
50 mm2 0.5 cm2
60 mm2 0.6 cm2
70 mm2 0.7 cm2
80 mm2 0.8 cm2
90 mm2 0.9 cm2
100 mm2 1 cm2
1,000 mm2 10 cm2