Area To Radius Of Circle Calculator - SensorsONE

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Calculate Radius of Circle
Area (A) [?]
Select area unit sq nanometres (nm²) sq micrometres (µm²) sq thous (thou²) sq millimetres (mm²) sq centimetres (cm²) sq inches (in²) sq feet (ft²) sq yards (yd²) sq metres (m²) acres (ac) hectares (ha) sq kilometres (km²) sq miles (mi²) sq nautical miles (nmi²) cu astronomical units (au³) cu light-years (ly³) cu parsecs (pc³)
Radius (r) [?]
Select radius unit nanometres (nm) micrometres (µm) thousandths of an inch (thou) millimetres (mm) centimetres (cm) inches (in) feet (ft) yards (yd) metres (m) kilometres (km) miles (mi) nautical miles (nmi) astronomical units (au) light-years (ly) parsecs (pc)

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User Guide

This tool will calculate the radius of a circle from the area, and will convert different measurement units for area and radius.

Formula

The formula used to calculate the circle radius is:

r = √(A / π)

Symbols
  • r = Circle radius
  • A = Circle area
  • π = Pi = 3.14159…

Area of Circle

Enter the area contained within a circle.

Radius of Circle

This is the radius of a circle that corresponds to the specified area. The radius is the distance between the centre and any point on the outer edge of a circle.

Tag » How To Find Radius With Area