Convert Square Inches to Square Centimeters

Enter your square inch value in the form below to get the value calculated in square centimeters.

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Results in Square Centimeters:
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1 sq in = 6.4516 sq cm

How to Convert Square Inches to Square Centimeters

Calculators can be used to convert measurements from one unit to another

Convert square inches to square centimeters with this simple formula:

square centimeters = square inches × 6.4516

Converting a square inch area measurement to a square centimeter measurement involves multiplying the area by the conversion ratio to find the result. One square inch is equal to 6.4516 square centimeters, so to convert simply multiply by 6.4516.

For example, here's how to convert 5 square inches to square centimeters using the formula above.
5 sq in = (5 × 6.4516) = 32.258 sq cm

Learn more about finding the area of your space using our area calculator.

Square inches and square centimeters are both units used to measure area. Learn more about area and find more area measurement conversion calculators. Square inches are an imperial measurement and can be abbreviated as sq in, for example 1 sq in. Square centimeters are a metric measurement and can be abbreviated as sq cm, for example 1 sq cm. Learn more about the metric system, including the common unit prefixes and how to convert between metric units.

square inches and square centimeters are units used to measure area
Convert Square Centimeters to Square Inches

Square Inch Measurements and Equivalent Square Centimeter Conversions

Common square inch values converted to the equivalent square centimeter value
Square Inches Square Centimeters
1 sq in 6.4516 sq cm
2 sq in 12.9 sq cm
3 sq in 19.35 sq cm
4 sq in 25.81 sq cm
5 sq in 32.26 sq cm
6 sq in 38.71 sq cm
7 sq in 45.16 sq cm
8 sq in 51.61 sq cm
9 sq in 58.06 sq cm
10 sq in 64.52 sq cm
11 sq in 70.97 sq cm
12 sq in 77.42 sq cm
13 sq in 83.87 sq cm
14 sq in 90.32 sq cm
15 sq in 96.77 sq cm
16 sq in 103.23 sq cm
17 sq in 109.68 sq cm
18 sq in 116.13 sq cm
19 sq in 122.58 sq cm
20 sq in 129.03 sq cm
21 sq in 135.48 sq cm
22 sq in 141.94 sq cm
23 sq in 148.39 sq cm
24 sq in 154.84 sq cm
25 sq in 161.29 sq cm
26 sq in 167.74 sq cm
27 sq in 174.19 sq cm
28 sq in 180.64 sq cm
29 sq in 187.1 sq cm
30 sq in 193.55 sq cm
31 sq in 200 sq cm
32 sq in 206.45 sq cm
33 sq in 212.9 sq cm
34 sq in 219.35 sq cm
35 sq in 225.81 sq cm
36 sq in 232.26 sq cm
37 sq in 238.71 sq cm
38 sq in 245.16 sq cm
39 sq in 251.61 sq cm
40 sq in 258.06 sq cm

More Square Inch Area Conversions

US Customary
Convert to Square Miles
1 sq in is equal to 2.491E-10 square miles
Convert to Acres
1 sq in is equal to 1.5942E-7 acres
Convert to Square Yards
1 sq in is equal to 0.000772 square yards
Convert to Square Feet
1 sq in is equal to 0.006944 square feet
SI Units
Convert to Square Kilometers
1 sq in is equal to 6.4516E-10 square kilometers
Convert to Square Meters
1 sq in is equal to 0.000645 square meters
Convert to Square Millimeters
1 sq in is equal to 645.16 square millimeters
Are Units
Convert to Hectares
1 sq in is equal to 6.4516E-8 hectares
Convert to Ares
1 sq in is equal to 6.4516E-6 ares