About this tool

Gradian to Radian Converter

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

1 gradian equals 0.01570796327 radians — enter any gradian value to convert it to radians instantly. This Gradian to Radian converter is a client-side tool: it applies a single multiplication (rad = grad × 0.01570796327) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert radians back to gradians. A reference table lists common gradian values already converted, and nothing you enter is sent to a server.

How to use Gradian to Radian Converter

1. 1

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

2. 2

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

3. 3

   Read the equivalent in radians 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 radians to gradians.

Why use Gradian to Radian Converter

• Instant, both ways

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

• Exact Angle math

  The conversion uses the precise factor (rad = grad × 0.01570796327), 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 gradian measurement to radians for a spec, listing, or report.
• Checking gradian↔radian figures while comparing products, datasets, or documentation.
• Learning the gradian-to-radian relationship from the worked formula and the common-value table.

Frequently asked questions