Trigonometry, logarithms, exponents, roots and more — right in your browser, no download needed.
A scientific calculator extends the basic four operations (add, subtract, multiply, divide) with tools built for algebra, trigonometry, calculus, statistics, and engineering. Where a standard calculator stops at percentages and square roots, a scientific calculator adds trigonometric functions, logarithms, exponents, factorials, and constants like π and e.
This calculator works directly in your browser and follows standard order of operations (PEMDAS/BODMAS), so expressions like 2 + 3 × 4 resolve correctly without needing extra parentheses.
| Button | Function | Example |
|---|---|---|
| sin / cos / tan | Trigonometric functions | sin(30) = 0.5 |
| log | Base-10 logarithm | log(100) = 2 |
| x² | Square a number | 7² = 49 |
| x^y | Raise to any power | 2^10 = 1024 |
| √x | Square root | √81 = 9 |
| 1/x | Reciprocal | 1/4 = 0.25 |
| n! | Factorial | 5! = 120 |
| π / e | Mathematical constants | π ≈ 3.14159 |
| mc / mr / m+ / m- | Memory clear, recall, add, subtract | Stores a running value |
Trigonometric functions can be calculated in two angle units. Degrees split a full circle into 360 parts and are the everyday unit used in geometry class. Radians measure angles by arc length relative to the radius, and are the standard unit in calculus and physics — a full circle equals 2π radians.
Use the DEG / RAD toggle above the display to switch modes. If your trig results look wrong, this is almost always the reason — check which mode you're in before troubleshooting further.
A scientific calculator adds trigonometric functions (sin, cos, tan), logarithms, exponents, roots, factorials, and constants like pi and e — tools needed for algebra, trigonometry, calculus, physics, and engineering that a basic four-function calculator can't handle.
Yes. Expressions are evaluated using standard mathematical order of operations (PEMDAS/BODMAS) — parentheses first, then exponents, then multiplication and division, then addition and subtraction.
You can switch between degrees and radians using the DEG/RAD toggle above the display. The default mode is degrees.