Convert Revolutions to Circles

Enter the angle in revolutions below to get the value converted to circles.

Results in Circles:

1 r = 1 cir

Do you want to convert circles to revolutions?

How to Convert Revolutions to Circles

Protractors are often used to measure angle

To convert a revolution measurement to a circle measurement, multiply the angle by the conversion ratio. One revolution is equal to 1 circles, so use this simple formula to convert:

circles = revolutions × 1

The angle in circles is equal to the revolutions multiplied by 1.

For example, here's how to convert 5 revolutions to circles using the formula above.

5 r = (5 × 1) = 5 cir

Revolutions and circles are both units used to measure angle. Keep reading to learn more about each unit of measure.

Revolutions

A revolution is equal to 1 rotation around a circle, or 360°. Revolutions are commonly used to measure the speed of rotation, for example when measuring the revolutions per minute (RPM) of a vehicle's engine.

A revolution is sometimes also referred to as a turn or cycle. Revolutions can be abbreviated as r, for example 1 revolution can be written as 1 r.

Circles

A circle is the equivalent of 1 revolution around a circle, or 360°.

A circle is sometimes also referred to as a revolution. Circles can be abbreviated as cir, for example 1 circle can be written as 1 cir.

Revolution Measurements and Equivalent Circle Conversions

Common revolution values converted to the equivalent circle value
Revolutions	Circles
1 r	1 cir
2 r	2 cir
3 r	3 cir
4 r	4 cir
5 r	5 cir
6 r	6 cir
7 r	7 cir
8 r	8 cir
9 r	9 cir
10 r	10 cir
11 r	11 cir
12 r	12 cir
13 r	13 cir
14 r	14 cir
15 r	15 cir
16 r	16 cir
17 r	17 cir
18 r	18 cir
19 r	19 cir
20 r	20 cir
21 r	21 cir
22 r	22 cir
23 r	23 cir
24 r	24 cir
25 r	25 cir
26 r	26 cir
27 r	27 cir
28 r	28 cir
29 r	29 cir
30 r	30 cir
31 r	31 cir
32 r	32 cir
33 r	33 cir
34 r	34 cir
35 r	35 cir
36 r	36 cir
37 r	37 cir
38 r	38 cir
39 r	39 cir
40 r	40 cir