Trigonometry Calculator
Sine, cosine and tangent of an angle given in degrees, plus the angle in radians.
Results
Sine
0.500000
Cosine
0.866025
Tangent
0.577350
Angle
0.523599
rad
What this tool does
Enter an angle in degrees and get all three basic ratios at once, along with the radian value that spreadsheets and programming languages expect. Tangent grows without limit near 90°, so values close to a right angle become very large.
Formula
sin θ, cos θ, tan θ (θ in degrees)
Variables
| Symbol | Meaning | Unit |
|---|---|---|
t | Angle | ° |
s | Sine | — |
c | Cosine | — |
tg | Tangent | — |
rd | Angle | rad |
Worked example
- Angle30 °
- Sine0.500000
- Cosine0.866025
- Tangent0.577350
- Angle0.523599 rad
Limitations
- The calculation runs at full precision and only the display is rounded. If you copy an intermediate value and retype it, small differences can appear.