Gradian to Radian
Free instant gradian to radian converter. 1 gon = 0.015708 rad.
Common Gradian to Radian values
| Gradian (gon) | Radian (rad) |
|---|---|
| 0 | 0 |
| 50 | 0.785398 |
| 100 | 1.5708 |
| 150 | 2.35619 |
| 200 | 3.14159 |
| 300 | 4.71239 |
| 400 | 6.28319 |
| 500 | 7.85398 |
How does Gradian to Radian conversion work?
Type a value in the Gradian (gon) field and the equivalent in Radian (rad) appears instantly to the right. The math uses the exact formula shown above — no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.
Gradian. Also called "gon". A full circle = 400 gradians. Used in surveying.
Radian. The SI angle unit, used in mathematics. A full circle = 2π rad ≈ 6.283.
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Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.
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