Square Centimeters to Square Inches converter (cm² to in²)
Convert Square Centimeters (cm²) to Square Inches (in²) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
Square Inches to Square Centimeters (in² to cm²) ►
How to convert Square Centimeters to Square Inches
1 square centimeter (cm²) is equal to 0.155 square inches (in²).
in² = cm² × 0.15500031
Multiply the area in square centimeters by 0.15500031:
Example: Convert 100 cm² to in²:
in² = 100 × 0.155 = 15.5 in²
What is a Square Centimeters?
The Square Centimeters (cm²) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Square Inches?
The Square Inches (in²) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts area from Square Centimeters into Square Inches. One cm² equals 0.15500031 in².
Square Centimeters to Square Inches conversion table
Common cm² values and the matching in² result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Square Centimeters (cm²) | Square Inches (in²) |
|---|---|
| 1 cm² | 0.15500031 in² |
| 5 cm² | 0.77500155 in² |
| 10 cm² | 1.5500031 in² |
| 50 cm² | 7.7500155 in² |
| 100 cm² | 15.500031 in² |
| 500 cm² | 77.500155 in² |
| 1000 cm² | 155.00031 in² |
How this calculator works
The form on this page is a Square Centimeters-to-Square Inches converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the in² result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many in² are in 1 cm²?
1 cm² = 0.15500031 in².
How do I convert Square Centimeters to Square Inches?
Multiply the area in square centimeters by 0.15500031:
Is this cm² to in² converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.