Trigonometry
Coterminal Angle Calculator
Lets users solve and check coterminal angle instantly with formula, steps and examples — no manual math.
Enter your details
°
Your result
Positive coterminal (0–360°)
45 °
Coterminal angles: 45°, -315°, 405° (add/subtract multiples of 360°).
Negative coterminal
-315 °
Next positive
405 °
About this calculator
Coterminal angles share the same terminal side, differing by full rotations (±360°). 45° is coterminal with 405°, −315°, and so on.
Frequently asked questions
Why CalcBreeze
- ✔ Verified formulas, instant recalculation
- ✔ Works on every device, no signup needed
- ✔ Save, share & export results
- ✔ 1100+ calculators across 50+ categories
- ✔ Pixel-consistent design across every tool