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Degree to Radian
Convert Degree to Radian and get the exact value instantly.
1 ° = 0.01745329252 rad
About this conversion
To convert Degree to Radian, multiply the number of Degree by 0.01745329252.
Angles are expressed in degrees, radians, gradians or turns depending on whether you are doing geometry, trigonometry or engineering, and each field tends to prefer its own.
Conversion table
| Degree (°) | Radian (rad) |
|---|---|
| 1 ° | 0.01745329252 rad |
| 2 ° | 0.03490658504 rad |
| 5 ° | 0.0872664626 rad |
| 10 ° | 0.1745329252 rad |
| 100 ° | 1.745329252 rad |
How to use this converter
- Enter your Degree value
Type any number into the Degree field. It starts at 1 so you can read the rate straight away.
- Read the Radian result
The amount in Radian updates as you type, so there is no button to press and nothing to wait for.
- Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.
Frequently asked
- How many Radian are in one Degree?
- One Degree equals 0.01745329252 rad. Enter any amount above to get an exact figure for your own value.
- Is this converter accurate?
- Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
- Do you upload the numbers I enter?
- No. The Degree to Radian conversion runs entirely in your browser tab, and nothing you type is sent to a server.
- Does it work on my phone?
- Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.
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