20 Square Millimeters to Square Centimeters

Convert 20 square millimeters (mm²) to square centimeters (cm²) with formulas, examples, and conversion tables.

mm²
cm²
20 mm² = 0.2 cm²
Full precision:0.2 cm²
Step-by-Step Solution

To convert 20 square millimeters to square centimeters, we divide by 100 because one square centimeter equals exactly 100 square millimeters.

1 square centimeter = 100 square millimeters

Since there are 100 square millimeters in every square centimeter, we divide our value by this factor:

20 ÷ 100 = 0.2 square centimeters

So 20 square millimeters = 0.2 square centimeters.

Quick check: 0.2 × 100 = 20 square millimeters

Square Millimeters to Square Centimeters Conversion Table

Square MillimetersSquare Centimeters
1 mm²0.01 cm²
2 mm²0.02 cm²
3 mm²0.03 cm²
4 mm²0.04 cm²
5 mm²0.05 cm²
10 mm²0.1 cm²
20 mm²0.2 cm²
50 mm²0.5 cm²
100 mm²1 cm²

20 Square Millimeters in Other Units

Unit20 mm² =
Square Millimeters to Square Kilometers2e-11 km²
Square Millimeters to Hectares2e-9 ha
Square Millimeters to Square Meters0.00002
Square Millimeters to Square Centimeters0.2 cm²
Square Millimeters to Square Miles7.722e-12 mi²
Square Millimeters to Acres4.9421e-9 ac
Square Millimeters to Square Yards0.00002392 yd²
Square Millimeters to Square Feet0.00021528 ft²
Square Millimeters to Square Inches0.031 in²
Square Millimeters to Ares2e-7 a
Square Millimeters to Barns2e+23 b

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