circular inch to square foot (US survey)
39 unitsResult5.454132e-3
0.005454132322square foot (US survey)
1 circular inch × 0.005454132322 = 0.005454132322 square foot (US survey)
Convert Circular inch to Square foot (US survey) (circular inch to square foot (US survey))
1 circular inch = 0.005454132322 square foot (US survey). Convert circular inch to square foot (US survey) instantly, with the exact factor, the formula and a reference table of common values.
Formula
square foot (US survey) = circular inch × 0.005454132322
circular inch to square foot (US survey) conversion table
| circular inch | square foot (US survey) |
|---|---|
| 1 circular inch | 0.005454132322 square foot (US survey) |
| 2 circular inch | 0.01090826464 square foot (US survey) |
| 3 circular inch | 0.01636239696 square foot (US survey) |
| 5 circular inch | 0.02727066161 square foot (US survey) |
| 10 circular inch | 0.05454132322 square foot (US survey) |
| 20 circular inch | 0.1090826464 square foot (US survey) |
| 50 circular inch | 0.2727066161 square foot (US survey) |
| 100 circular inch | 0.5454132322 square foot (US survey) |
| 250 circular inch | 1.36353308 square foot (US survey) |
| 500 circular inch | 2.727066161 square foot (US survey) |
| 1000 circular inch | 5.454132322 square foot (US survey) |
What is a circular inch?
A circular inch is the area of a circle one inch in diameter — about 0.0005067 square meters, slightly less than a square inch.
Measuring round things by their diameter keeps the math simple, so the unit turns up in older engineering tables for pipes, rods and cables.
Related conversions
square foot (US survey) to circular inchsquare foot (US survey) to m²m² to square foot (US survey)circular inch to m²m² to circular inch
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