Convert square centimeter to square inch

1 cm² = 0.15500031 in²

1 cm² = 0.155 in²
1 cm² in every area unit
microbarn1.0000e+30 μb
millibarn1.0000e+27 mb
barn1.0000e+24 b
square nanometer100,000,000,000,000 nm²
square micrometer100,000,000 μm²
circular mil197,350 cmil
thousand circular mils197.35 kcmil
square millimeter100 mm²
square centimeter1 cm²
square inch0.155 in²
square decimeter0.01 dm²
square foot0.0010764 ft²
square yard0.0001196 yd²
square meter0.0001 m²
tsubo0.00003025 tsubo
square rod0.0000039537 rd²
are0.000001 a
square chain2.4711e-07 ch²
dunam1.0000e-07 dunam
rood9.8842e-08 rood
acre2.4711e-08 ac
hectare1.0000e-08 ha
square kilometer1.0000e-10 km²
square mile3.8610e-11 mi²
How the conversion works

Multiply by 0.15500031 to go from square centimeter to square inch, or divide by it to go back. Every conversion on this site routes through the SI value (m²) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.

Going the other way? square inch to square centimeter — 1 in² = 6.4516 cm².

square centimeter to square inch — common values
1 cm²0.15500031 in²
2 cm²0.31000062 in²
3 cm²0.46500093 in²
5 cm²0.77500155 in²
10 cm²1.5500031 in²
15 cm²2.3250047 in²
20 cm²3.1000062 in²
25 cm²3.8750078 in²
50 cm²7.7500155 in²
75 cm²11.625023 in²
100 cm²15.500031 in²
250 cm²38.750078 in²
500 cm²77.500155 in²
1000 cm²155.00031 in²