Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Trigonometry
Cosine Calculator
Calculates the cosine of an angle entered in degrees, returning a value between −1 and 1. Use it when resolving horizontal force components, applying the Law of Cosines, computing dot products, or working with periodic functions.
Fill in the required fields to see your result.
Trigonometry
Tangent Calculator
Calculates the tangent of an angle entered in degrees, representing the ratio of opposite to adjacent in a right triangle (or rise/run for a slope). Use it when finding the slope of a line, sizing roof pitch, or measuring height from a known horizontal distance.
Fill in the required fields to see your result.
Key differences
| Cosine Calculator | Tangent Calculator | |
|---|---|---|
| Category | Trigonometry | Trigonometry |
| Inputs required | 1 | 1 |
| Result | Cosine value | Tangent value |
| What it does | Calculates the cosine of an angle entered in degrees, returning a value between −1 and 1. Use it when resolving horizontal force components, applying the Law of Cosines, computing dot products, or working with periodic functions. | Calculates the tangent of an angle entered in degrees, representing the ratio of opposite to adjacent in a right triangle (or rise/run for a slope). Use it when finding the slope of a line, sizing roof pitch, or measuring height from a known horizontal distance. |