1 circular inches = 0.7853982 square inches 

Circular inches to Square inches Conversion

Circular inch to square inch conversion allow you make a conversion between circular inch and square inch easily. You can find the tool in the following.

Area Conversion


= 0.78539820
= 785398 × 10-6
= 785398E-6
= 785398e-6
= 1.57079639
= 0.015708 × 102
= 0.015708E2
= 0.015708e2
= 2.35619459
= 0.0235619 × 102
= 0.0235619E2
= 0.0235619e2
= 3.14159278
= 0.0314159 × 102
= 0.0314159E2
= 0.0314159e2
= 3.92699098
= 0.0392699 × 102
= 0.0392699E2
= 0.0392699e2

Quick Look: circular inches to square inches

circular inch1 circ in2 circ in3 circ in4 circ in5 circ in6 circ in7 circ in8 circ in9 circ in10 circ in11 circ in12 circ in13 circ in14 circ in15 circ in16 circ in17 circ in18 circ in19 circ in20 circ in21 circ in22 circ in23 circ in24 circ in25 circ in26 circ in27 circ in28 circ in29 circ in30 circ in31 circ in32 circ in33 circ in34 circ in35 circ in36 circ in37 circ in38 circ in39 circ in40 circ in41 circ in42 circ in43 circ in44 circ in45 circ in46 circ in47 circ in48 circ in49 circ in50 circ in51 circ in52 circ in53 circ in54 circ in55 circ in56 circ in57 circ in58 circ in59 circ in60 circ in61 circ in62 circ in63 circ in64 circ in65 circ in66 circ in67 circ in68 circ in69 circ in70 circ in71 circ in72 circ in73 circ in74 circ in75 circ in76 circ in77 circ in78 circ in79 circ in80 circ in81 circ in82 circ in83 circ in84 circ in85 circ in86 circ in87 circ in88 circ in89 circ in90 circ in91 circ in92 circ in93 circ in94 circ in95 circ in96 circ in97 circ in98 circ in99 circ in100 circ in
square inch0.7853982 sq in1.5707964 sq in2.3561946 sq in3.1415928 sq in3.9269910 sq in4.7123892 sq in5.4977874 sq in6.2831856 sq in7.0685838 sq in7.8539820 sq in8.6393802 sq in9.4247783 sq in10.2101765 sq in10.9955747 sq in11.7809729 sq in12.5663711 sq in13.3517693 sq in14.1371675 sq in14.9225657 sq in15.7079639 sq in16.4933621 sq in17.2787603 sq in18.0641585 sq in18.8495567 sq in19.6349549 sq in20.4203531 sq in21.2057513 sq in21.9911495 sq in22.7765477 sq in23.5619459 sq in24.3473441 sq in25.1327423 sq in25.9181405 sq in26.7035387 sq in27.4889369 sq in28.2743350 sq in29.0597332 sq in29.8451314 sq in30.6305296 sq in31.4159278 sq in32.2013260 sq in32.9867242 sq in33.7721224 sq in34.5575206 sq in35.3429188 sq in36.1283170 sq in36.9137152 sq in37.6991134 sq in38.4845116 sq in39.2699098 sq in40.0553080 sq in40.8407062 sq in41.6261044 sq in42.4115026 sq in43.1969008 sq in43.9822990 sq in44.7676972 sq in45.5530954 sq in46.3384936 sq in47.1238917 sq in47.9092899 sq in48.6946881 sq in49.4800863 sq in50.2654845 sq in51.0508827 sq in51.8362809 sq in52.6216791 sq in53.4070773 sq in54.1924755 sq in54.9778737 sq in55.7632719 sq in56.5486701 sq in57.3340683 sq in58.1194665 sq in58.9048647 sq in59.6902629 sq in60.4756611 sq in61.2610593 sq in62.0464575 sq in62.8318557 sq in63.6172539 sq in64.4026521 sq in65.1880503 sq in65.9734484 sq in66.7588466 sq in67.5442448 sq in68.3296430 sq in69.1150412 sq in69.9004394 sq in70.6858376 sq in71.4712358 sq in72.2566340 sq in73.0420322 sq in73.8274304 sq in74.6128286 sq in75.3982268 sq in76.1836250 sq in76.9690232 sq in77.7544214 sq in78.5398196 sq in

circular inch is a unit of area. it uses in Imperial/US system. it exactly equal  π4 sq in and approximately ≈ 5.067075 × 10−4 m2

Name of unitSymbolDefinitionRelation to SI unitsUnit System
circular inchcirc in

π4 sq in

5.067075×10−4 m2


conversion table

circular inchessquare inchescircular inchessquare inches
1= 0.785398195796396= 4.7123891747783
2= 1.57079639159287= 5.4977873705747
3= 2.35619458738928= 6.2831855663711
4= 3.14159278318569= 7.0685837621675
5= 3.92699097898210= 7.8539819579639

A square inch (plural: square inches) is a unit of area, equal to the area of a square with sides of one inch.

Name of unitSymbolDefinitionRelation to SI unitsUnit System
square inchsq in

1 in × 1 in

6.4516×10−4 m2


conversion table

square inchescircular inchessquare inchescircular inches
1= 1.2732394922126= 7.6394369532719
2= 2.5464789844247= 8.9126764454838
3= 3.81971847663598= 10.185915937696
4= 5.09295796884799= 11.459155429908
5= 6.366197461059910= 12.73239492212

Conversion table

circular inchessquare inches
1= 0.7853982
1.2732395= 1


exactly equal
approximately equal to
=equal to
digitsindicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …)