Trigonometric Calculator
Calculate sine, cosine, tangent, and their inverse functions
Common angles:
Results
Degrees
45°
Radians
0.78539816
sin(45)
0.70710678
cos(45)
0.70710678
tan(45)
1
cot(45)
1
sec(45)
1.41421356
csc(45)
1.41421356
Common Values Reference
| Angle | sin | cos | tan |
|---|---|---|---|
| 0° | 0 | 1 | 0 |
| 30° | 0.5 | 0.8660254 | 0.57735027 |
| 45° | 0.70710678 | 0.70710678 | 1 |
| 60° | 0.8660254 | 0.5 | 1.73205081 |
| 90° | 1 | 0 | undefined |
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
📚
Formula Source: Handbook of Mathematical Functions
by Abramowitz & Stegun
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.