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Circle Circumference to Radius Calculator

Calculate Radius of Circle
Circumference (C) [?]
Radius (r) [?]

Click save settings to reload page with unique web page address for bookmarking and sharing the current tool settings, or click flip tool to reverse the tool function with current settings

✕ clear settings

Switch tool with the current settings for radius, and calculate circle area, circle diameter sphere volume or sphere surface area instead


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Contents

  • Related Tools
  • User Guide
      • Formula
          • Symbols
      • Circumference of Circle
      • Radius of Circle

Related Tools

  • Calculate circumference of circle from radius
  • Circle area to radius calculator
  • Circle diameter to radius calculator
  • Length and distance converter
  • Sphere volume to radius calculator
  • Sphere surface area to radius calculator

User Guide

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

Formula

The formula used to calculate the circle radius is:

r = C / (2 · π)

Symbols
  • r = Circle radius
  • C = Circle circumference
  • π = Pi = 3.14159…

Circumference of Circle

Enter the circumference which is the total length of the edge around the circle, if it was straightened out.

Radius of Circle

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

Primary Sidebar

Tool Sections

  • Density
  • Flow
  • Energy & Power
  • Force, Load & Torque
  • Input & Output Signals
  • Length, Area & Volume
  • Liquid Depth & Level
  • Mass & Weight
  • Pressure
  • Speed & Acceleration
  • Temperature
  • Time & Frequency

Product Selection Guides

  • Pressure Transmitters
  • Pressure Transducers
  • Liquid Level Sensors
  • Digital Pressure Gauges
  • Data Loggers

Application Selection Guides

  • Vacuum
  • Submersible
  • Low Pressure Range
  • Leak Testing
  • High Frequency Response
  • Dual Temperature and Pressure
  • Barometric Pressure

Help Guides

  • Reduce calibration costs of analogue pressure gauges
  • Measuring the difference in air pressure between rooms
  • How to get a 10 volt signal from a 4-20mA output pressure sensor
  • How to Connect a 4-20mA Current Loop Pressure Transmitter
  • Determining the hydrostatic pressure range for a tank level sensor
  • Choosing PVC, PUR, FEP and TPE cable types

Online Measurement Tools

  • Temperature Transmitter 4-20mA Current Output Calculator
  • Pressure Transmitter 4-20mA Current Output Calculator
  • Pressure Transducer 1-5V Voltage Output Calculator
  • Pressure Converter
  • Measurement Reading to 4-20mA Signal Converter
  • Liquid Depth/Level to Hydrostatic Pressure Calculator
  • Input to Output Measurement Reading Converter
  • Force & Area to Pressure Calculator
  • Density to Specific Gravity Calculator

Email Your Enquiry

enquiries@sensorsone.com

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