Convert Degrees to Radians
Convert degrees to radians instantly. Type a value below, check the formula and table, then see how the same ° to rad conversion looks as a single line in Notes Calculator.
Degrees to Radians formula
One degree is 0.0174533 radians, so rad = ° × 0.0174533. For the reverse, multiply radians by 57.2958, or use the Radians to Degrees converter.
Degrees to Radians conversion table
| Degrees (°) | Radians (rad) |
|---|---|
| 1 | 0.0174533 |
| 15 | 0.261799 |
| 30 | 0.523599 |
| 45 | 0.785398 |
| 60 | 1.0472 |
| 90 | 1.5708 |
| 120 | 2.0944 |
| 180 | 3.14159 |
| 270 | 4.71239 |
| 360 | 6.28319 |
Degrees to Radians in Notes Calculator
Notes Calculator is a notepad that does math. Write 100 degrees to radians on any line and the answer appears beside it. Change the number and the result follows. The same works with in and as, and with values stored in variables, so a whole estimate can mix degrees and radians without a separate converter.
| Note | Result |
|---|---|
| 100 degrees to radians | 1.75 rad |
| 100 degrees in radians | 1.75 rad |
| 45 radians as degrees | 2,578.31° |
See the unit conversion docs for mixing units in one expression, or open the free web app and try it.
More angle conversions
FAQ
Frequently asked questions
- One degree equals 0.0174533 radians. To convert degrees to radians, multiply by 0.0174533; to go back, multiply by 57.2958.
- Type the value, the unit, and the target unit on one line: 100 degrees to radians. The keywords to, in, and as all work, and the result updates as you type. You can also keep the value in a variable and convert it later.
- Yes. The converter on this page is free, and Notes Calculator has a free plan for the web, Mac, Windows, Linux, and Android with the same unit conversions built in.
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