Scientific Calculator
A full scientific calculator for trigonometry, logarithms, powers, roots and more.
Beyond the basic four functions
A scientific calculator handles the functions a basic one cannot — trigonometry, logarithms, exponents, roots, constants like pi — which are essential for maths, science and engineering work. This provides those in your browser, so you have a capable calculator without reaching for a physical one or an app.
Enter your calculation using the scientific functions.
Order of operations, and the common trap
The thing that catches people out on any calculator is the order of operations — a calculator evaluates multiplication and division before addition and subtraction, and functions and powers before those, so the way you enter an expression matters. The frequent mistake is with brackets: leaving them out where they are needed changes the result entirely, and a calculation like dividing by a sum needs the sum in brackets or it divides by only the first term. Using brackets to make your intent explicit is the reliable way to get the answer you mean. Degrees versus radians is the other classic pitfall in trigonometry, so it is worth checking which mode you are in.
Questions & answers
What can a scientific calculator do that a basic one can't?
Trigonometry, logarithms, exponents, roots and constants like pi — the functions needed for maths, science and engineering.
Why do my calculations sometimes give the wrong answer?
Usually the order of operations or missing brackets — a calculator does powers and multiplication before addition, so brackets make your intent explicit.
Is anything uploaded?
No. The calculation happens in your browser.