A Real Calculator Without Installing Anything
Your phone's basic calculator handles addition and subtraction. But what about square roots? Trigonometry? Logarithms?
For actual math, you need a scientific calculator. Here's one that works in your browser.
What's Available
Our Scientific Calculator includes the functions you'd find on a physical scientific calculator:
Basic operations: Add, subtract, multiply, divide, percentages
Powers and roots: Squares, square roots, exponents, nth roots
Trigonometry: Sine, cosine, tangent (and their inverses)
Logarithms: Natural log (ln) and base-10 log
Constants: π (pi) and e (Euler's number)
Parentheses: For controlling operation order
All the standard stuff, accessible from any device with a browser.
Degrees vs Radians
Trigonometric functions depend on angle units. Make sure you're using the right mode:
Degrees: 0-360 scale. Most common in everyday use.
Radians: 0-2π scale. Used in higher math and science.
The calculator lets you switch between modes. If your trig results look wrong, check that you're in the expected mode.
When You Need This
Students: Homework, studying, exam prep (when allowed)
Professionals: Quick calculations without searching for a physical calculator
Curious people: Sometimes you just need to calculate something
The nice thing about a web-based calculator is it's available whenever you have a browser. No app to install, no physical device to find.
Memory Functions
The calculator includes memory functions:
- MC: Memory clear
- MR: Memory recall
- M+: Add to memory
- M-: Subtract from memory
Useful for multi-step calculations where you need to remember intermediate results.
Keyboard Shortcuts
You can type most inputs directly:
- Numbers and basic operators work as expected
- Use ^ for exponents
- Enter/Return to calculate
- C to clear
Faster than clicking buttons for longer calculations.
Try It
Open the scientific calculator for your next calculation.
Always available, no installation, free to use.
Need unit conversions too? Check out our unit converter for length, weight, and temperature.