Revolutions to radians Converter

Enter the revolutions, then press Calculate. The radians 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 revolutions and the next step needs radians. 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 revolution = 6.28318531 radians.

A worked example

10 revolutions are 62.83185307 radians. 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 radians to revolutions. A nearby pair in the same units is gradians to radians. When the converted number is the input to a job, continue with the trigonometry.