About the Scientific Calculator
The Scientific Calculator supports all standard scientific operations including trigonometric functions (sin, cos, tan and their inverses), natural and base-10 logarithms, powers, square roots, factorials, constants π and e, and a memory register. Switch between Degrees and Radians for trigonometric calculations. All computations run entirely in your browser — no data is stored or transmitted.
Functions Supported
- Trigonometry — sin, cos, tan, and their inverses (arcsin, arccos, arctan) in degrees or radians
- Logarithms — natural logarithm (ln, base e) and common logarithm (log, base 10)
- Powers and roots — xʸ, x², and √x for exponentiation and square roots
- Factorial — n! for combinatorics and probability calculations
- Constants — π (3.14159…) and e (2.71828…) for mathematical and scientific work
- Memory — store and recall values to simplify multi-step calculations
Degrees vs. Radians
Trigonometric functions can work in either degrees or radians. Degrees are more intuitive for everyday geometry (a right angle is 90°), while radians are the natural unit for calculus and many physics applications (a full circle is 2π radians). This calculator lets you toggle between modes at any time.
Order of Operations
This calculator follows standard mathematical order of operations (BODMAS/PEMDAS): brackets first, then orders (powers and roots), then division and multiplication, then addition and subtraction. Use parentheses to control evaluation order in complex expressions and avoid common errors in multi-step problems.
Who Uses a Scientific Calculator?
- Students studying GCSE and A-Level maths, physics, and chemistry
- University students in STEM disciplines
- Engineers performing quick field calculations
- Programmers working with mathematical algorithms
- Anyone needing a reliable, free alternative to a physical calculator
Related Calculators
- Algebra Calculator — Solve linear and quadratic equations step-by-step with a specialised on-screen keyboard.
- Fraction Calculator — Add, subtract, multiply and divide fractions with simplification.
- Percentage Calculator — Calculate percentages, increases, decreases and percentage of.