🔬

Scientific Calculator

Full scientific calculator with trig functions, logarithms, powers and calculation history.

Scientific FunctionsCalculation History

How to use this calculator

Choose degrees or radians where relevant, enter the expression with brackets for the intended order, then calculate and check the displayed history before reusing a result.

Useful real-world examples

Checking a trigonometric value during study.
Working with exponents, roots or logarithms without a handheld calculator.

Important detail

Check whether an angle calculation is using degrees or radians.

About the Scientific Calculator

This web-based scientific calculator provides standard arithmetic plus functions commonly needed in maths, physics, engineering, and science education — including trigonometry, logarithms, exponents, square roots, and factorials. It works entirely in your browser, no download or account required.

How to Use It

Use the number pad and operators for basic arithmetic — add, subtract, multiply, divide.
For scientific functions, use the function buttons: sin, cos, tan for trigonometry; log for base-10 logarithm; ln for natural logarithm; √ for square root; x² for squaring a number.
Trig functions use degrees by default — check the DEG/RAD toggle if you need radian mode.
Press = or Enter to calculate. Use C to clear and AC to reset entirely.

Common Uses

Scientific calculators are essential tools for students studying HSC or VCE maths, physics, and chemistry. They are also useful for tradespeople calculating angles and gradients, engineers working with trigonometry and exponentials, and anyone working through complex financial or statistical calculations. Understanding when to use sin vs tan (for right-angle triangle problems), or log vs ln (base-10 vs natural log for different formula contexts), is foundational maths knowledge that this tool assumes — but a quick reference search will clarify any of these functions in context.

log (or log₁₀) is the base-10 logarithm — it asks "10 to what power equals this number?" ln is the natural logarithm with base e (≈2.71828). ln is used extensively in calculus, exponential growth/decay formulas, and statistics. log is more common in chemistry (pH scale) and acoustics (decibels).