Square Inches - Square Centimeters Converter


Convert between square inches and square centimeters (in2 and cm2) using this area conversion tool. This converter is part of the full area converter. Simply choose whether you want to convert square inches to square centimeters or square centimeters to square inches, enter a value and click the 'convert' button. Reference charts are available down the page.

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Converting square centimeters and square inches

Some commonly asked questions are included below, as well as a reference chart. When making manual conversions, you can use the converter at the top of this page to check your answer.

How many square inches are there in 1 square centimeter?

There are 0.15500031000062 square inches in 1 square centimeter. To convert from square centimeters to square inches, multiply your figure by 0.15500031000062 (or divide by 6.4516) .

How many square centimeters are there in 1 square inch?

There are 6.4516 square centimeters in 1 square inch. To convert from square inches to square centimeters, multiply your figure by 6.4516 (or divide by 0.15500031000062) .

In the chart below, figures are rounded to a maximum of 4 decimal places (6 with smaller numbers) to give approximations.

Square Centimeters and square inches reference chart

Square Centimeters Square Inches Square Inches Square Centimeters
0.1 0.0155 0.1 0.6452
1 0.155 1 6.4516
2 0.31 2 12.9032
3 0.465 3 19.3548
4 0.62 4 25.8064
5 0.775 5 32.258
6 0.93 6 38.7096
7 1.085 7 45.1612
8 1.24 8 51.6128
9 1.395 9 58.0644
10 1.55 10 64.516
20 3.1 20 129.032
30 4.65 30 193.548
40 6.2 40 258.064
50 7.75 50 322.58
60 9.3 60 387.096
70 10.85 70 451.612
80 12.4 80 516.128
90 13.95 90 580.644
100 15.5 100 645.16

What is a square centimeter?

Square centimeters (or 'square centimetres' with British spelling) are commonly used to measure areas in both the commercial and domestic environment. Some examples could be the size of a 12-inch computer screen (77.41 square centimetres) or the size of a microchip. One square centimeter can be translated as 0.15 inches. In mapping, square centimeters are often translated into acres or hectares. This has applications within the surveying industry.

What is a square inch?

A square inch is a common unit of measurement within the United States and the United Kingdom. It can be used throughout numerous industries such as construction, graphic design, textiles and painting. Some common abbreviations include sq. in., sq. inches and in/-2. One square inch can approximate the size of many postage stamps. A single square inch is equal to 6.45 square centimeters.

Other individual area converters

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