Use this free circumference calculator to find the area, circumference and diameter of a circle.

Use this calculator to easily calculate the circumference of a circle, given its radius in any metric: mm, cm, meters, km, inches, feet, yards, miles, etc. If you know the diameter, first divide it by two to get …

This calculator computes the values of typical circle parameters such as radius, diameter, circumference, and area, using various common units of measurement.

Circumferences and areas of circles with diameters in inches. Download and print Circumference and Area vs. Circle Diameter chart

What is circumference anyway? Answer: The circumference of a circle is the edge or rim of a circle itself. It is the equivalent of 'perimeter' for a circle. The glowing part in the circle above is the …

Jul 2, 2025 · Calculate a circle's circumference using radius or diameter, with an optional custom π value. Uses standard formulas: C = 2πr or C = πd.

Unlock the power of geometry with this advanced tool that calculates circumference, diameter, radius, and area —from any starting measurement! Perfect for students, engineers, designers, and DIY …

Circumference calculator is a free tool used to calculate the circumference of a circle when the radius is given. It can be also used to calculate other parameters of a circle such as diameter, radius and area.

Calculate the circumference of any circle instantly with our free online circumference calculator. Simply enter radius or diameter for precise measurements. Perfect for students, engineers, and DIY …

Birth to 36 months: Boys Head circumference-for-age and Weight-for-length percentiles NAME RECORD # Birth H E A D C I R H E C U M A D C I F E R E N C E R C U M F E R E N C E