A full-featured calculator with trigonometric functions, logarithms, exponents, roots, factorials, memory keys, and a degree/radian toggle — all running instantly in your browser.
Type an expression using the keypad or your keyboard, then press = or Enter. Switch between DEG and RAD before using trig functions.
| Angle | sin | cos | tan |
|---|---|---|---|
| 0° | 0 | 1 | 0 |
| 30° | 0.5 | 0.8660 | 0.5774 |
| 45° | 0.7071 | 0.7071 | 1 |
| 60° | 0.8660 | 0.5 | 1.7321 |
| 90° | 1 | 0 | undefined |
| 180° | 0 | -1 | 0 |
| 270° | -1 | 0 | undefined |
| 360° | 0 | 1 | 0 |
Radians = Degrees × (π ÷ 180)
Degrees = Radians × (180 ÷ π)
log_b(x) = ln(x) ÷ ln(b)
xʸ = x multiplied by itself y times
n! = n × (n−1) × (n−2) × ... × 1
sin²(x) + cos²(x) = 1
In DEG mode: sin(30) = 0.5
log₁₀(1000) = 3
2^10 = 1024
√225 = 15
6! = 6×5×4×3×2×1 = 720
Solve triangle side lengths, angles, and geometric relationships using sin, cos, and tan.
Calculate loads, angles, logarithmic scales, and exponential growth in technical work.
Work through formulas involving exponents, logarithms, and trigonometric identities.
Compute factorials and powers used in probability and combinatorics problems.
Apply exponential and logarithmic formulas for compound interest and growth models.
Handle homework, standardized test problems, and lab calculations quickly.
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