Circular inch

Circular inch is area unit, symbol: [circ in]. Definition of 1 circular inch ≡  π⁄4 sq in. Area of circle with diameter of 1 inch, value exactly π × 0.00016129 ≈ 5.067075×10-4 m². Compared to square metre, circular inch is smaller unit.

• 1 [circ in] = `5.06707479097498*10^-04` [m²]

• 1 [m²] = `1/(5.06707479097498*10^-04)` [circ in] = 1973.52524139 [circ in]


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[circ in]
=? square millimetre
=? square centimetre
=? square metre
=? square kilometre
=? acre
=? hectare
=? square link (Gunter's)(International)

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