Convert square foot [ft^2] to circular inch Online | Free area Converter

Switch units

Square Foot [ft²]


A square foot (ft²) is a unit of area commonly used in the United States and other countries. It represents a square with sides 1 foot (12 inches) long.

1 square foot = 144 square inches = 0.0929 square meters.

Square feet are widely used to measure the area of rooms, houses, and small plots of land.


Circular Inch


A circular inch is a unit of area used primarily in engineering and wire gauge measurements. It represents the area of a circle with a diameter of one inch.



  • Formula: Area = π × (radius)²



  • Since the radius is half an inch,

    Area = π × (0.5 in)² = π × 0.25 in² ≈ 0.7854 square inches (in²).



Circular inches are often used to specify cross-sectional areas of wires or pipes.



Popular Area Unit Conversions

🔗 Square-meter-m-2-to-square-kilometer-km-2
🔗 Square-meter-m-2-to-square-foot-ft-2
🔗 Square-meter-m-2-to-square-foot-us-survey
🔗 Square-meter-m-2-to-square-mil-mil-2
🔗 Square-kilometer-km-2-to-square-centimeter-cm-2
🔗 Square-kilometer-km-2-to-square-yard-yd-2
🔗 Square-kilometer-km-2-to-township
🔗 Square-kilometer-km-2-to-circular-mil
🔗 Square-centimeter-cm-2-to-square-micrometer-m-2
🔗 Square-centimeter-cm-2-to-square-decimeter-dm-2
🔗 Square-centimeter-cm-2-to-rood
🔗 Square-centimeter-cm-2-to-sabin
🔗 Square-millimeter-mm-2-to-square-kilometer-km-2
🔗 Square-millimeter-mm-2-to-are-a
🔗 Square-millimeter-mm-2-to-square-chain-ch-2
🔗 Cuerda-to-square-centimeter-cm-2
🔗 Cuerda-to-square-hectometer-hm-2
🔗 Cuerda-to-township
🔗 Cuerda-to-homestead
🔗 Plaza-to-square-millimeter-mm-2
🔗 Plaza-to-square-nanometer-nm-2
🔗 Plaza-to-square-chain-ch-2
🔗 Plaza-to-varas-castellanas-cuad
🔗 Varas-castellanas-cuad-to-square-mile-mi-2
🔗 Varas-castellanas-cuad-to-square-foot-us-survey
🔗 Varas-castellanas-cuad-to-square-pole
🔗 Varas-conuqueras-cuad-to-square-meter-m-2
🔗 Varas-conuqueras-cuad-to-hectare-ha
🔗 Varas-conuqueras-cuad-to-township
🔗 Varas-conuqueras-cuad-to-homestead
🔗 Electron-cross-section-to-square-millimeter-mm-2
🔗 Electron-cross-section-to-square-dekameter-dam-2
🔗 Electron-cross-section-to-square-decimeter-dm-2
🔗 Electron-cross-section-to-acre-us-survey-ac
🔗 Electron-cross-section-to-rood
🔗 Electron-cross-section-to-arpent
🔗 Electron-cross-section-to-varas-conuqueras-cuad

Convert square foot [ft^2] to Other Area Units

🔄 square foot [ft^2] to square meter [m^2]
🔄 square foot [ft^2] to square kilometer [km^2]
🔄 square foot [ft^2] to square centimeter [cm^2]
🔄 square foot [ft^2] to square millimeter [mm^2]
🔄 square foot [ft^2] to square micrometer [µm^2]
🔄 square foot [ft^2] to hectare [ha]
🔄 square foot [ft^2] to acre [ac]
🔄 square foot [ft^2] to square mile [mi^2]
🔄 square foot [ft^2] to square yard [yd^2]
🔄 square foot [ft^2] to square inch [in^2]
🔄 square foot [ft^2] to square hectometer [hm^2]
🔄 square foot [ft^2] to square dekameter [dam^2]
🔄 square foot [ft^2] to square decimeter [dm^2]
🔄 square foot [ft^2] to square nanometer [nm^2]
🔄 square foot [ft^2] to are [a]
🔄 square foot [ft^2] to barn [b]
🔄 square foot [ft^2] to square mile (US survey)
🔄 square foot [ft^2] to square foot (US survey)
🔄 square foot [ft^2] to circular inch
🔄 square foot [ft^2] to township
🔄 square foot [ft^2] to section
🔄 square foot [ft^2] to acre (US survey) [ac]
🔄 square foot [ft^2] to rood
🔄 square foot [ft^2] to square chain [ch^2]
🔄 square foot [ft^2] to square rod
🔄 square foot [ft^2] to square rod (US survey)
🔄 square foot [ft^2] to square perch
🔄 square foot [ft^2] to square pole
🔄 square foot [ft^2] to square mil [mil^2]
🔄 square foot [ft^2] to circular mil
🔄 square foot [ft^2] to homestead
🔄 square foot [ft^2] to sabin
🔄 square foot [ft^2] to arpent
🔄 square foot [ft^2] to cuerda
🔄 square foot [ft^2] to plaza
🔄 square foot [ft^2] to varas castellanas cuad
🔄 square foot [ft^2] to varas conuqueras cuad
🔄 square foot [ft^2] to Electron cross section
Port Checker IP Lookup Ping Test DNS Checker What's My IP Notepad Keyboard Tester BMI Calculator Speed Calculator Kmpl Calculator Grade Calculator GPA Calculator Scientific Calculator Final Grade Binary Converter Unit Converter Image Converter QR Generator Decimal to Binary Binary to Decimal Hex to Binary Binary to Hex Decimal to Hex Hex to Decimal Binary Addition Binary Subtraction Binary Multiplication Binary Division