Radians to circles Converter

Enter the radians, then press Calculate. The circles stay hidden while you type.

Press Calculate after the entries are in.

What this angle conversion is for

Use this page when a measurement is written in radians and the next step needs circles. The number stays blank until you press Calculate, so a half-typed entry is never mistaken for the answer.

The factor

Multiply by the factor: 1 radian = 0.15915494 circles.

A worked example

10 radians are 1.59154943 circles. Multiply the result by the reverse factor if you want the original number back.

How to check it

Write the factor down, do the multiply on paper, and compare it with the result card. If you change a sentence on this page, edit the HTML file and reload. The form and this note live in the same file.

The reverse conversion is circles to radians. A nearby pair in the same units is radians to degrees. When the converted number is the input to a job, continue with the trigonometry.