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Convert radian to gradian

Here you can quickly calculate how many gradian fit in one radian.
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  • 1 rad = 63.661977 gon
  • 1 gon = 0.015708 rad

Radian to gradian conversion table

radian gradian
1 63.661977
30 1909.859317
45 2864.788976
60 3819.718634
90 5729.577951
180 11459.155903
270 17188.733854
360 22918.311805

Radian to gradian formula

To convert radian to gradian, multiply by 63.661977.

1 rad = 63.661977 gon
Example: 1 radian = 63.661977 gradian

Common angle conversion mistakes

  • The calculator is in the wrong mode. SIN() in a spreadsheet, Math.sin in code and a calculator in radian mode all read 90 as radians, so sin(90) gives about 0.894, not 1. Convert degrees to radians first, or switch the calculator to degree mode.
  • Gradians and degrees are easy to mix up, since both show as plain numbers on the instrument. A right angle is 90° but 100 gon, and 1 gon is smaller than 1°. Check the unit setting on the instrument.

Quick radian and gradian conversion quiz

Score: 0

241 radian equals 15 300 gradian.

Correct answer: 241 radian = 15 300 gradian.

18.1 gradian equals 0.426 radian.

Correct answer: 18.1 gradian = 0.284 radian.

187 gradian equals 1.76 radian.

Correct answer: 187 gradian = 2.94 radian.

More angle conversions