Radian to Gradian Converter
Convert Radian (rad) to Gradian (gon) instantly. 1 rad = 63.661977 gon.
Angle Converter
14 units available
1 rad = 63.661977 gon
Formula:
gon = rad × 63.6619772368With your value: 1 rad = 63.66197724 gon
Other Radian to Gradian conversions
Radian to Gradian Conversion Table
| Radian (rad) | Gradian (gon) |
|---|---|
| 0.5 | 31.830989 |
| 1 | 63.661977 |
| 2 | 127.323954 |
| 5 | 318.309886 |
| 10 | 636.619772 |
| 15 | 954.929659 |
| 20 | 1,273.239545 |
| 25 | 1,591.549431 |
| 50 | 3,183.098862 |
| 100 | 6,366.197724 |
| 250 | 15,915.494309 |
| 500 | 31,830.988618 |
| 1000 | 63,661.977237 |
Gradian to Radian Conversion Table
| Gradian (gon) | Radian (rad) |
|---|---|
| 0.5 | 0.007854 |
| 1 | 0.015708 |
| 2 | 0.031416 |
| 5 | 0.07854 |
| 10 | 0.15708 |
| 15 | 0.235619 |
| 20 | 0.314159 |
| 25 | 0.392699 |
| 50 | 0.785398 |
| 100 | 1.570796 |
| 250 | 3.926991 |
| 500 | 7.853982 |
| 1000 | 15.707963 |
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
Gradian (gon)
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 Gradian
To convert from Radian (rad) to Gradian (gon), multiply the value by 63.6619772368.
Formula: gon = rad × 63.6619772368
Reverse: rad = gon × 0.0157079633
Step-by-Step Example
- Start with your value in Radian. For example: 5 rad
- Multiply by the conversion factor: 5 x 63.6619772368
- The result is: 318.309886 gon
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 Gradian
The gradian (gon) is a unit of plane angle. One gradian equals 0.9 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 Gradian are in 1 Radian?
There are exactly 63.6619772368 Gradian in 1 Radian. This means the conversion factor from Radian to Gradian is 63.6619772368.
What is the formula to convert Radian to Gradian?
The formula to convert Radian to Gradian is: gon = rad × 63.6619772368. For example, to convert 10 Radian to Gradian, you would multiply 10 by 63.6619772368.
What is a Radian?
The radian is the SI unit of angular measurement. One radian equals approximately 57.296 degrees.
What is a Gradian?
The gradian (gon) is a unit of plane angle. One gradian equals 0.9 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 Gradian converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/radian-to-gradian