radian to turn
Convert radian (rad) to turn (rev). Use an editable angle converter, conversion formula, and reference table.
1 rad = 0.1591549431 rev
Conversion formula
One radian equals 0.1591549431 turn. Multiply your value in radian by this factor to get turn. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 radian:5 × 0.1591549431 = 0.7957747155 rev
Conversion table
| radian (rad) | turn (rev) |
|---|---|
| 0.01 | 0.001591549431 |
| 0.1 | 0.01591549431 |
| 1 | 0.1591549431 |
| 2 | 0.3183098862 |
| 5 | 0.7957747155 |
| 10 | 1.591549431 |
| 25 | 3.978873577 |
| 50 | 7.957747155 |
| 100 | 15.91549431 |
| 1000 | 159.1549431 |
About these measurements
An angle describes rotation between directions.
The base reference used here is the radian. One radian is 1 base units; one turn is 6.283185307 base units.
Important distinctions
A full turn is 360 degrees or 2π radians. Signed angles are permitted.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert rad to rev?
Multiply the quantity in rad by 0.1591549431. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the turn to radian converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
