AREA CONVERSION
Square centimeter to Square inch.
Convert square centimeter (cm²) to square inch (in²), with the math explained.
1 cm² = 0.15500031 in²
THE MATH, MADE SIMPLE
How to convert square centimeter to square inch
Multiply your square centimeter value by 0.155000310001 to get the equivalent in square inch. Both units are normalized through the square meter.
in² = cm² × 0.1550003110 cm² = 1.55000310001 in²
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
cm² to in² conversion table
| Square centimeter (cm²) | Square inch (in²) |
|---|---|
| 1 cm² | 0.155000310001 in² |
| 2 cm² | 0.310000620001 in² |
| 5 cm² | 0.775001550003 in² |
| 10 cm² | 1.55000310001 in² |
| 20 cm² | 3.10000620001 in² |
| 50 cm² | 7.75001550003 in² |
| 100 cm² | 15.5000310001 in² |
| 500 cm² | 77.5001550003 in² |
| 1,000 cm² | 155.000310001 in² |
About the square centimeter
The square centimeter (cm²) is a unit of area. One square centimeter equals 0.0001 square meter (base unit) in this calculator.
All square centimeter conversionsAbout the square inch
The square inch (in²) is a unit of area. One square inch equals 0.00064516 square meter (base unit) in this calculator.
All square inch conversionsCommon questions
What is 1 cm² in in²?
One square centimeter equals 0.155000310001 in². Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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