Tangent Formula: Tangent = Length of Opposite side / Length of Adjacent side

Tangent Definition The free Tangent Calculator will calculate the tangent for any side if you just enter in the length of the opposite side and the length of the adjacent side. What are you waiting for? Try our the free tangent calculator now!

How to Calculate Tangent Let's be honest - sometimes the best tangent calculator is the one that is easy to use and doesn't require us to even know what the tangent formula is in the first place! But if you want to know the exact formula for calculating tangent then please check out the "Formula" box above.