90 degrees to radians
Convert 90 degrees to radians — the answer, the arithmetic and the closest common values, all on one page.
Show your work
90 ° × 0.017453 = 1.570796 rad.
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Questions
What is 90 degrees in radians?
90 ° = 1.570796 rad. The arithmetic: 90 ° × 0.017453 = 1.570796 rad.
How precise is this result?
The factor is exact by definition, so the only rounding is the display. Higher precision is available on the ° to rad converter page.
What is 90 rad in °?
90 rad = 5,156.62 ° — the inverse direction.