Square centimetres to square inches – convert cm² to in²
Convert square centimetres to square inches (cm² to in²) to express metric areas in imperial units. Ideal for product specs, labels, woodworking, screen sizes and drawings aimed at US audiences.
Open the interactive cm² → in² converter:
Use main converter (cm² → in²) or switch to in² → cm²The area converter can also switch between m², ft², yd², acres, hectares and more.
Quick reference: cm² to in²
One square inch is exactly 6.4516 cm², so one square centimetre is about 0.1550 in². That means: in² = cm² ÷ 6.4516. Examples:
| Square centimetres (cm²) | Square inches (in², approx.) |
|---|---|
| 1 cm² | 0.16 in² |
| 5 cm² | 0.78 in² |
| 10 cm² | 1.55 in² |
| 25 cm² | 3.88 in² |
| 50 cm² | 7.75 in² |
| 100 cm² | 15.50 in² |
| 200 cm² | 31.01 in² |
Why convert square centimetres to square inches?
cm² to in² is handy when you:
- Convert metric drawings or plans to imperial for clients or suppliers.
- Compare product labels or packaging areas in both unit systems.
- Work on craft, sewing or 3D-print projects with mixed measurements.
- Demonstrate how squaring a length conversion affects area units.
Other area converters on this site
All area conversions use consistent length factors (cm, inches and metres), so squared values stay accurate across the board.
Page last updated: 4 December 2025.