Radian to Quadrant Converter
Convert Radian (rad) to Quadrant (quad) instantly. 1 rad = 0.63662 quad.
Angle Converter
14 units available
1 rad = 0.63662 quad
Formula:
quad = rad × 0.6366197724With your value: 1 rad = 0.63661977 quad
Other Radian to Quadrant conversions
Radian to Quadrant Conversion Table
| Radian (rad) | Quadrant (quad) |
|---|---|
| 0.5 | 0.31831 |
| 1 | 0.63662 |
| 2 | 1.27324 |
| 5 | 3.183099 |
| 10 | 6.366198 |
| 15 | 9.549297 |
| 20 | 12.732395 |
| 25 | 15.915494 |
| 50 | 31.830989 |
| 100 | 63.661977 |
| 250 | 159.154943 |
| 500 | 318.309886 |
| 1000 | 636.619772 |
Quadrant to Radian Conversion Table
| Quadrant (quad) | Radian (rad) |
|---|---|
| 0.5 | 0.785398 |
| 1 | 1.570796 |
| 2 | 3.141593 |
| 5 | 7.853982 |
| 10 | 15.707963 |
| 15 | 23.561945 |
| 20 | 31.415927 |
| 25 | 39.269908 |
| 50 | 78.539816 |
| 100 | 157.079633 |
| 250 | 392.699082 |
| 500 | 785.398163 |
| 1000 | 1,570.796327 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Radian (rad)
Angle
The radian is the coherent SI unit of plane angle; the degree is exactly π/180 rad and is accepted for use with the SI.
Source: Units accepted for use with the SI, SI Brochure Table 8
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Quadrant (quad)
Angle
The radian is the coherent SI unit of plane angle; the degree is exactly π/180 rad and is accepted for use with the SI.
Source: Units accepted for use with the SI, SI Brochure Table 8
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Radian to Quadrant
To convert from Radian (rad) to Quadrant (quad), multiply the value by 0.6366197724.
Formula: quad = rad × 0.6366197724
Reverse: rad = quad × 1.5707963268
Step-by-Step Example
- Start with your value in Radian. For example: 5 rad
- Multiply by the conversion factor: 5 x 0.6366197724
- The result is: 3.183099 quad
About Radian
The radian is the SI unit of angular measurement. One radian equals approximately 57.296 degrees.
Fun Fact: A full circle contains exactly 2π radians.
Common uses: mathematics, physics, engineering.
About Quadrant
The quadrant (quad) is a unit of plane angle. One quadrant equals 90 radians. UnitConvertLab converts it against every other angle unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: angle calculations, engineering and science, education.
Frequently Asked Questions
How many Quadrant are in 1 Radian?
There are exactly 0.6366197724 Quadrant in 1 Radian. This means the conversion factor from Radian to Quadrant is 0.6366197724.
What is the formula to convert Radian to Quadrant?
The formula to convert Radian to Quadrant is: quad = rad × 0.6366197724. For example, to convert 10 Radian to Quadrant, you would multiply 10 by 0.6366197724.
What is a Radian?
The radian is the SI unit of angular measurement. One radian equals approximately 57.296 degrees.
What is a Quadrant?
The quadrant (quad) is a unit of plane angle. One quadrant equals 90 radians. UnitConvertLab converts it against every other angle unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Radian?
The Radian is commonly used in mathematics, physics, engineering.
Related Angle Conversions
Cite this page
UnitConvertLab. (2026). Radian to Quadrant converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/radian-to-quadrant