Convert Revolutions to Circles

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

SWAP UNITS
Results in Circles:
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1 r = 1 cir

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

More Revolution Angle Conversions

Convert to Radians
1 r is equal to 6.283185 radians
Convert to Milliradians
1 r is equal to 6,283.19 milliradians
Convert to Degrees
1 r is equal to 360 degrees
Convert to Minutes Of Arc
1 r is equal to 21,600 minutes of arc
Convert to Seconds Of Arc
1 r is equal to 1,296,000 seconds of arc
Convert to Gradians
1 r is equal to 400 gradians
Convert to Mils (NATO)
1 r is equal to 6,400 mils (NATO)