Convert square centimeters to square inches
1 cm² = 0.155000310001 in² — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.155 000 310 001in²
As a fraction: 2500/16129
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1 cm² = 0.155000310001 in²
Show this value in all 25 area units
- Square kilometers km² 1e-10
- Square hectometers hm² 1e-8
- Square decameters dam² 0.000 001
- Square meters m² 0.0001
- Square decimeters dm² 0.01
- Square centimeters cm² 1
- Square millimeters mm² 100
- Square micrometers µm² 100 000 000
- Square nanometers nm² 100 000 000 000 000
- Hectares ha 1e-8
- Ares a 0.000 001
- Decares daa 0.000 000 1
- Square inches in² 0.155 000 310 001
- Square feet ft² 0.001 076 391 041 67
- Square yards yd² 0.000 119 599 004 63
- Square miles mi² 3.86102158542e-11
- Acres ac 2.47105381467e-8
- Roods ro 9.88421525869e-8
- Square rods rd² 0.000 003 953 686 103 47
- Sections section 3.86102158542e-11
- Townships twp 1.07250599595e-12
- Roofing squares sq 0.000 010 763 910 416 7
- Circular mils cmil 197 352.524 139
- Barns b 1e+24
- Tsubos 坪 0.000 030 25
Every row is Square centimeter (cm²) converted through the square meter, in exact rational arithmetic.
How to convert square centimeters to square inches
Multiply the number of square centimeters by 0.155000310001 to get square inches.
Square centimeter to Square inch conversion table
| Square centimeters (cm²) | Square inches (in²) |
|---|---|
| 1 cm² | 0.155 000 31 |
| 2 cm² | 0.310 000 62 |
| 3 cm² | 0.465 000 93 |
| 5 cm² | 0.775 001 55 |
| 10 cm² | 1.550 003 1 |
| 20 cm² | 3.100 006 2 |
| 25 cm² | 3.875 007 8 |
| 50 cm² | 7.750 015 5 |
| 100 cm² | 15.500 031 |
| 250 cm² | 38.750 078 |
| 500 cm² | 77.500 155 |
| 1000 cm² | 155.000 31 |
Square inch to Square centimeter conversion table
| Square inches (in²) | Square centimeters (cm²) |
|---|---|
| 1 in² | 6.4516 |
| 2 in² | 12.9032 |
| 3 in² | 19.3548 |
| 5 in² | 32.258 |
| 10 in² | 64.516 |
| 20 in² | 129.032 |
| 25 in² | 161.29 |
| 50 in² | 322.58 |
| 100 in² | 645.16 |
| 250 in² | 1612.9 |
| 500 in² | 3225.8 |
| 1000 in² | 6451.6 |
Frequently asked
How many square inches are in a square centimeter?
One square centimeter equals 0.15500031 square inches (cm² → in²). That figure is exact, not rounded.
How do you convert square centimeters to square inches?
Multiply the number of square centimeters by 0.155000310001 to get square inches.
What is 1 in² in square centimeters?
One square inch is 6.4516 square centimeters.
What is 10 cm² in in²?
10 cm² = 1.550 003 1 in².