This tool will calculate the theoretical bore diameter of a piston cylinder assembly by entering values for the piston force and the pressure within the cylinder ø = √(4·F/(π·P))

# Diameter & Radius Calculators

Online web tools for converting and calculating diameter, radius of 2 and 3 dimensional circular shaped objects and spaces.

## Diameter to Radius of Circle Calculator

This tool will calculate the radius of a circle from the diameter, and will convert different measurement units for diameter and radius r = ø/2

## Radius to Diameter of Circle Calculator

This tool will calculate the diameter of a circle from the radius, and will convert different measurement units for radius and diameter ø = 2·r

## Area to Radius of Circle Calculator

This tool will calculate the radius of a circle from the area, and will convert different measurement units for area and radius r = √(A/π)

## Volume to Radius of Sphere Calculator

This tool will calculate the radius of a sphere from the volume, and will convert different measurement units for volume and radius r = ∛(¾·V/π)

## Circumference to Radius of Circle Calculator

This tool will calculate the radius of a circle from the circumference, and will convert different measurement units for circumference and radius r = C/(2·π)

## Surface Area to Radius of Sphere Calculator

This tool will calculate the radius of a sphere from the surface area, and will convert different measurement units for surface area and radius r = √(A/(4·π))

## Surface Area to Diameter of Sphere Calculator

This tool will calculate the diameter of a sphere from the surface area, and will convert different measurement units for surface area and diameter ø = √(A/π)

## Circumference to Diameter of Circle Calculator

This tool will calculate the diameter of a circle from the circumference, and will convert different measurement units for circumference and diameter ø = C/π

## Volume to Diameter of Sphere Calculator

This tool will calculate the diameter of a sphere from the volume, and will convert different measurement units for volume and diameter ø = ∛(6·V/π)

## Volume & Length to Diameter of Cylinder Calculator

This online tool will calculate the diameter of a cylindrical shaped object from the required volume capacity and length ø = √(V/(L·π))·2

## Volumetric Flow Rate & Flow Speed to Pipe Diameter Calculator

Calculate the internal diameter of a pipe or duct from the rate of volumetric flow and the flow speed , ø = (Q/(v·π))½·2

## Area to Diameter of Circle Calculator

This tool will calculate the diameter of a circle from the area, and will convert different measurement units for area and diameter, ø = 2·√(A/π)