120 degrees to radians
2.0944 rad
120° = 2.0944 rad.
radians
2.0944rad
120° = 2.0944 rad
In short
How many radians is 120 degrees?
120° = 2.0944 rad. 1 degree = 0.017453 radians, so the working is 120 × 0.017453 = 2.0944.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 degree = 0.017453 radians 120 × 0.017453 = 2.0944
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (rad) | Off by |
|---|---|---|
| Whole number | 2 | −0.09440 |
| 1 decimal | 2.1 | +0.00560 |
| 2 decimals | 2.09 | −0.00440 |
Round trip: take 2.0944 rad back the other way and you land on 120.0003° — a drift of 0.0003°. That gap is the rounding, not the conversion.
What 120 ° looks like
120 °
Two thirds of a half turn, 2π/3 in radians, and the angle between the arms of a three-way symmetric join.
Frequently asked questions
What is 120 degrees in radians?
120 degrees is 2.0944 radians. 1 degree = 0.017453 radians, so the working is 120 × 0.017453 = 2.0944.
How accurate is 2.0944 rad?
Rounding to 2.0944 rad and converting straight back gives 120.0003°, a drift of 0.0003° from the 120 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
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