Square inch (in²) to Circular inch (circ in) converter

Converting from Square inch (in²) to Circular inch (circ in)

What is Square inch (in²)

Square inch is a unit of area commonly used in the imperial and US customary systems. It is represented by the symbol in². One square inch is equal to the area of a square with sides measuring one inch.

What is Circular inch (circ in)

Circular inch is also a unit of area and is used to measure the area inside a circle. It is represented by the symbol circ in. One circular inch is equal to the area of a circle with a diameter of one inch.

Conversion Formulas

The default conversion between square inch and circular inch is as follows:

1 (in2)=1.27324 (circ in)

1 (circ in)=0.7853982 (in2)

Examples

  • 3 square inches in circular inches: 3×1.27324=3.81972 (circ in)

  • 4 circular inches in square inches: 4×0.7853982=3.141592 (in2)

  • 12 square inches in circular inches: 12×1.27324=15.27888 (circ in)

Conclusion

Use the provided formulas and examples on this page to easily convert between square inch and circular inch.

Square inch to Circular inch conversion table

in² to circ in conversion table

Square inch (in²) Circular inch (circ in)
0.01 in² 0.0127324 circ in
0.1 in² 0.127324 circ in
1 in² 1.27324 circ in
2 in² 2.546479 circ in
3 in² 3.819719 circ in
4 in² 5.092958 circ in
5 in² 6.366198 circ in
6 in² 7.639437 circ in
7 in² 8.912677 circ in
8 in² 10.18592 circ in
9 in² 11.45916 circ in
10 in² 12.7324 circ in
10 in² 12.7324 circ in
20 in² 25.46479 circ in
30 in² 38.19719 circ in
40 in² 50.92958 circ in
50 in² 63.66198 circ in
60 in² 76.39437 circ in
70 in² 89.12677 circ in
80 in² 101.8592 circ in
90 in² 114.5916 circ in
100 in² 127.324 circ in