Calculate sine, cosine, and tangent for any angle in degrees using this simple trigonometry calculator.
The Trigonometry Calculator by Easy Converters is a comprehensive online tool designed to compute values of key trigonometric functions including sine (sin), cosine (cos), tangent (tan), cosecant (csc), secant (sec), and cotangent (cot). Whether you're working in degrees or radians, this calculator delivers instant, accurate, and simplified results to support students, teachers, engineers, and math enthusiasts.
Trigonometry is a branch of mathematics that studies the relationships between angles and sides of triangles, particularly right-angled triangles. The six primary trigonometric functions are:
Each trig function has its own graph, which can help visualize periodicity, amplitude, and asymptotes. For example, sine and cosine have a wave-like pattern, while tangent has vertical asymptotes and repeats every 180° (π radians).
| Angle | sin(θ) | cos(θ) | tan(θ) |
|---|---|---|---|
| 0° | 0 | 1 | 0 |
| 30° | 0.5 | 0.866 | 0.577 |
| 45° | 0.707 | 0.707 | 1 |
| 60° | 0.866 | 0.5 | 1.732 |
| 90° | 1 | 0 | Undefined |
trigonometry calculator, online trig calculator, sin cos tan calculator, solve trig functions, angle calculator, tan of degrees, sin in radians
Use the free online Trigonometry Calculator to calculate sin, cos, tan, and other trig values in degrees or radians. Accurate, fast, and educational.
The Easy Converters Trigonometry Calculator simplifies math by making trigonometric calculations fast and easy. Whether for class assignments, engineering tasks, or scientific analysis, this tool helps users of all levels explore and apply trig functions with confidence. Try it now to boost your math performance!
Trigonometric functions are not just abstract math concepts — they are actively used in everyday life and professional industries. Here are some examples:
In addition to finding function values, this calculator can assist in solving full triangle problems using the following principles:
These laws are especially useful in non-right-angled triangle calculations, commonly found in real-world geometry problems.
The calculator can also support inverse functions, which help you find angles when you know the ratio:
This is helpful when working backward from measurements to find angles, such as in navigation or construction.
All trig functions are deeply connected to the unit circle, a circle with a radius of 1 centered at the origin of a coordinate plane. The unit circle helps define function values for all angles and is a critical tool for understanding periodicity and signs of trigonometric functions across quadrants.
Sometimes your values may be in radians, but you need them in degrees — or vice versa. Here are handy conversions:
Example: π/6 × 180/π = 30°
This calculator is a valuable resource for teachers and students alike:
The Trigonometry Calculator provides answers up to 8 decimal places for high precision. For many applications, rounding to 2 or 3 decimal places is sufficient (e.g., 0.707 for sin(45°)). However, engineers and scientists may require full precision for advanced calculations.
Advanced users may need to work with composite functions like:
These identities are useful in calculus, signal processing, and physics. While the current calculator handles basic functions, you can break these into parts and calculate each segment easily.
While this tool is powerful, here are a few important limitations to remember:
Despite these, it remains a highly useful tool for fast, accurate trigonometric computation.
Trigonometry is one of the most important fields in mathematics, and with this Trigonometry Calculator, learners and professionals alike can access powerful computations instantly. It eliminates guesswork, supports deep understanding, and saves time. Try it today and enhance your math journey with Easy Converters.