Tan Calculator
Calculate the tangent of any angle.
Calculate
Enter your values below.
Result
tan(angle)
0
Formula used
tan(angle) = sin(angle) ÷ cos(angle), calculated after converting to radians if needed.
Example: tan(45°) = 1.
How to use this calculator
- Enter Angle.
- Choose Angle unit.
- Press Calculate to see your result instantly.
FAQ
Frequently asked questions
When is tangent undefined?
At 90°, 270°, and other odd multiples of 90°, where cosine equals zero.
What is the range of tangent's output?
Unlike sine and cosine, tangent can be any real number.
What is tan(0)?
0.
Can I find the angle from a tangent value instead?
Yes, use the Arctan Calculator.