Convert Square Centimeters to Square Inches

1 cm² = 0.155 in²

1 cm² = 0.155 in²

square centimeters (cm²) square inches (in²)
0.5 0.0775002
1 0.155
2 0.310001
5 0.775002
10 1.55
25 3.875
50 7.75
100 15.5
250 38.7501
500 77.5002
1000 155

To convert square centimeters to square inches, multiply the value by the conversion factor:

1 cm² = 0.155 in²

For example: 10 cm² = 1.55 in²

The Conversion Formula

To convert square centimeters to square inches, multiply the value by the conversion factor: 1 cm² = 0.155 in². For a worked example, suppose you need to convert 25 cm² to square inches: 25 × 0.155 = 3.875 in². To convert in the opposite direction, divide by 0.155, or equivalently multiply by 6.4516.

About square centimeters

The square centimeter (cm²) is a unit for small surfaces. It was the base area unit of the CGS system (centimeter-gram-second) used in early science. Today, it remains the practical choice for biology (leaf area), medicine (skin grafts), and electronics (chip sizes), where square meters are simply too big. square centimeters are commonly used in Medical skin patches, Smartphone screens, Postage stamps, and Paper sizes, Biology experiments.

A credit card covers about 46 square centimeters.

About square inches

The square inch is the smallest common imperial area unit. It is primarily used in engineering and manufacturing in the US. It also forms the basis for the pressure unit 'psi' (pounds per square inch). In the digital age, it appears in calculations for screen pixel density (pixels per inch) and print resolution. square inches are commonly used in Pistons and engine cylinders, Pressure calculations, Small art prints, and Electronic displays, Stamp collecting (US).

A standard post-it note is 9 square inches.

When Would You Convert square centimeters to square inches?

Converting between square centimeters and square inches is one of the most common area conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 cm² = 0.155 in²) memorized or bookmarked can save time in professional and everyday contexts alike.