Scientific Calculator
A full-featured scientific calculator for trigonometry, logarithms, powers, roots and more โ with keyboard support, calculation history and an AI helper for working through tricky problems.
What Can This Scientific Calculator Do?
This calculator handles the full range of scientific and engineering calculations you'd expect from a physical scientific calculator โ trigonometric functions, logarithms, powers, roots, factorials and memory storage โ all directly in your browser with no download needed.
DEG, RAD and GRAD โ Which Should I Use?
| Mode | Full Circle | Common Use |
|---|---|---|
| DEG (Degrees) | 360ยฐ | Everyday angle calculations, most school and university problems |
| RAD (Radians) | 2ฯ radians | Calculus, physics, higher mathematics |
| GRAD (Gradians) | 400 gradians | Some engineering and surveying contexts |
Using the Memory Functions
- MS (Memory Store) โ saves the current result to memory, overwriting whatever was stored before.
- MR (Memory Recall) โ brings the stored memory value back into your calculation. For simpler running totals without scientific functions, our Average Calculator may be quicker.
- M+ (Memory Add) โ adds the current result to whatever's already in memory, useful for running totals.
- M- (Memory Subtract) โ subtracts the current result from memory.
Keyboard Shortcuts (Desktop)
For faster calculations on desktop or laptop, this calculator supports full physical keyboard input โ type numbers and operators directly rather than clicking buttons. On mobile and tablet, use the on-screen buttons as normal.
| Key | Action |
|---|---|
| 0-9 and . | Enter numbers |
| + โ * / | Basic operators |
| Enter or = | Calculate result |
| Backspace | Delete last character |
| Escape | Clear everything |
Common Uses for a Scientific Calculator
Scientific calculators are essential across a wide range of academic and professional contexts โ physics and chemistry problems requiring trigonometric or logarithmic functions, engineering calculations involving powers and roots, statistics work needing factorials (see our Probability Calculator for combinations and permutations), and general advanced maths beyond what a basic calculator can handle. Students preparing for exams that allow scientific calculators, and professionals needing quick access to these functions without a physical device, both benefit from having this available directly in the browser.
FAQs
What is a scientific calculator used for?
Scientific calculators handle advanced maths, physics, engineering and science calculations beyond basic arithmetic โ including trigonometry, logarithms, powers and roots.
What is the difference between sin, cos and tan?
These are trigonometric functions describing the relationship between angles and sides in a right-angled triangle. Sin = opposite/hypotenuse, cos = adjacent/hypotenuse, tan = opposite/adjacent.
What does log mean on a calculator?
Log (logโโ) calculates the base-10 logarithm. Ln calculates the natural logarithm (base e). Both are used in science, engineering and finance calculations.
What does n! mean?
n! is factorial โ the product of all positive integers up to n. For example 5! = 5 ร 4 ร 3 ร 2 ร 1 = 120.
Can I use my keyboard instead of clicking buttons?
Yes โ this calculator supports full keyboard input. Type numbers and operators directly, press Enter to calculate, Backspace to delete, and Escape to clear.
Can I ask the AI to explain a maths concept?
Yes โ the AI Maths Helper can explain concepts like logarithms, trigonometry or calculus in plain language, separate from the calculator itself.
Is this calculator free?
Yes, completely free with no sign-up required.