Scientific Calculator
A complete scientific calculator, right in your browser. Work with trigonometry, logarithms, powers, roots and factorials — no install, no cost.
How it works
The calculator follows standard order of operations: parentheses first, then exponents, then multiplication and division, and finally addition and subtraction. Exponentiation is right-associative, so 2^3^2 reads as 2^(3^2) = 512. Multiplication can be implicit too: 2π and 3(4+1) work as you would expect.
Step by step
- 1Choose degrees (DEG) or radians (RAD) for trigonometric functions.
- 2Type your calculation or use the keys. You can click mid-expression and edit.
- 3The result appears live under the input, before you even press =.
- 4Press = or Enter to lock in the result and add it to your history.
Worked examples
sin(30) in degrees
→ Switch to DEG → result 0.5.
√16 + 3²
→ sqrt(16)+3^2 = 4 + 9 = 13.
5! (factorial of 5)
→ 5 × 4 × 3 × 2 × 1 = 120.
Common mistakes
- Computing trigonometry in radians when the question is in degrees (or vice versa).
- Forgetting parentheses with powers: -2^2 is -4, while (-2)^2 equals 4.
- Mixing up log and ln. log is base 10, ln is the natural logarithm with base e.
When to use it
- Homework and tests for maths, physics and chemistry.
- Quickly computing a logarithm or root without your physical calculator.
- Checking whether your manual calculation is right.
Frequently asked questions
Is this scientific calculator free?
Yes, completely free and without an account. The calculator runs in your browser, so there is nothing to install.
How do I switch between degrees and radians?
Use the DEG/RAD switch above the display. The result is recalculated instantly in the chosen unit.
Which functions does the calculator support?
sin, cos, tan and their inverses, sinh, cosh, tanh, log, ln, exp, square root, absolute value, rounding and factorial, plus the constants π and e.
Can I use this calculator in an exam?
That depends on your school or programme rules. Most Dutch exams only allow an approved physical calculator.