About this tool

Radian to Degree Converter

Convert radians to degrees instantly. Free, bidirectional, and fully in-browser.

1 radian equals 57.29577951 degrees — enter any radian value to convert it to degrees instantly. This Radian to Degree converter is a client-side tool: it applies a single multiplication (° = rad × 57.29577951) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert degrees back to radians. A reference table lists common radian values already converted, and nothing you enter is sent to a server.

How to use Radian to Degree Converter

1. 1

   Open Radian to Degree Converter on AltFTool — it loads instantly in your browser.

2. 2

   Type the value you want to convert into the Radian field.

3. 3

   Read the equivalent in degrees in the result field, and copy it if needed.

4. 4

   Use the decimal-places slider for more or less precision, or press swap to convert degrees to radians.

Why use Radian to Degree Converter

• Instant, both ways

  The result updates as you type, and the swap button flips the conversion to degree → radian without reloading.

• Exact Angle math

  The conversion uses the precise factor (° = rad × 57.29577951), so the number matches a manual calculation to the decimal places you choose.

• Adjustable precision

  A slider sets 0–10 decimal places, and very small or very large results switch to scientific notation instead of rounding to zero.

• Private and free

  Everything runs locally in your browser — no upload, no account, no limit on conversions.

Common use cases

• Converting a radian measurement to degrees for a spec, listing, or report.
• Checking radian↔degree figures while comparing products, datasets, or documentation.
• Learning the radian-to-degree relationship from the worked formula and the common-value table.

Frequently asked questions