---
title: "Radians to Gradians — rad to grad converter"
description: "1 radian = 63.66198 gradians. Convert radians to gradians with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/radians-to-gradians/
site: "At One Place"
---

# Radians to gradians

**1 radian in gradians: 1 rad = 63.66198 grad**

grad = rad × 63.66197724

To convert radians to gradians, multiply by 63.66197724. The table below gives the values people look up most often, and the converter works for any number.

## Radians to gradians table

*Common radian values converted to gradians.*

| Radians | Gradians |
| --- | --- |
| 1 rad | 63.66198 |
| 2 rad | 127.324 |
| 3 rad | 190.9859 |
| 4 rad | 254.6479 |
| 5 rad | 318.3099 |
| 10 rad | 636.6198 |
| 15 rad | 954.9297 |
| 20 rad | 1,273.2395 |
| 25 rad | 1,591.5494 |
| 30 rad | 1,909.8593 |
| 40 rad | 2,546.4791 |
| 50 rad | 3,183.0989 |
| 75 rad | 4,774.6483 |
| 100 rad | 6,366.1977 |
| 250 rad | 15,915.494 |
| 500 rad | 31,830.989 |
| 1,000 rad | 63,661.977 |

## How the conversion works

The relationship is grad = rad × 63.66197724. Both units measure angle, so the conversion is a fixed factor that never changes.

## Common questions

### How many gradians are in one radian?

One radian equals 63.66198 gradians. grad = rad × 63.66197724.

### How do you convert radians to gradians?

Use grad = rad × 63.66197724. So 10 rad is 636.6198 grad.

### How many radians are in one gradian?

One gradian equals 0.015708 radians, which is the reverse of the conversion above.

## Related pages

- [Gradians to Radians](https://atoneplace.net/convert/gradians-to-radians/)
- [Radians to Degrees](https://atoneplace.net/convert/radians-to-degrees/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)