BYTETOOLS

Degree to Radian Converter

Convert degrees to radians online. 1 ° = 0.01745329 rad. Free, instant Degree-to-Radian converter. Works both ways with a formula and reference table.

Degree → Radian

1 ° = 0.01745329 rad

Degree to Radian conversion table

Degree (°)Radian (rad)
1 °0.01745329 rad
2 °0.03490659 rad
5 °0.08726646 rad
10 °0.17453293 rad
25 °0.43633231 rad
50 °0.87266463 rad
100 °1.745329 rad
  • Instant, live Degree ↔ Radian conversion
  • Accurate to the exact conversion factor
  • Converts in both directions
  • Reference table of common values
  • 100% private — runs entirely in your browser
  • Free, no sign-up, works offline

How to use the Degree to Radian Converter

  1. 1

    Type the number of degrees in the first box.

  2. 2

    Read the equivalent value in radians instantly in the second box.

  3. 3

    Or type a Radian value to convert back to degrees — it works both ways.

  4. 4

    Copy the result, or check the reference table for common conversions.

About the Degree to Radian Converter

The ByteTools Degree to Radian Converter changes degrees into radians instantly. One Degree equals 0.01745329 Radians (rad), and the tool applies that exact factor as you type so you get a precise answer every time.

Angle conversions are used in geometry, engineering, navigation and graphics between degrees, radians and gradians. Everything is calculated locally in your browser — nothing is uploaded — so it is fast, private and works offline. Enter a number in either box to convert both ways, and use the table for common Degree-to-Radian values at a glance.

Frequently asked questions

How many Radians are in a Degree?

One Degree equals 0.01745329 Radians (rad). To convert, multiply the number of Degrees by 0.01745329. For example, 10 Degrees = 0.17453293 Radians.

What is the formula to convert Degrees to Radians?

Multiply the Degree value by 0.01745329 to get Radians. In symbols, rad = ° × 0.01745329. This converter applies the exact factor automatically so you never round by hand.

How do I convert Radians back to Degrees?

Divide by 0.01745329, or multiply by 57.29578. You can also use our Radian to Degree converter for the reverse direction — it uses the same exact factor.

Is this Degree to Radian converter free and private?

Yes. The conversion runs entirely in your browser with JavaScript — nothing you type is uploaded, logged or stored. It is completely free, needs no sign-up and keeps working offline once loaded.

Related tools