Scientific Calculator
A full-featured online scientific calculator.
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Frequently Asked Questions
How do I use this calculator?
Type expressions directly or use the buttons. Use standard math notation: +, -, *, /. Use ** for powers, sqrt() for square roots.
How do I use trigonometric functions?
sin(), cos(), tan() expect radians. For degrees, convert first: sin(45 * Math.PI / 180) for sin(45°).
What does the ! button do?
It calculates the factorial. 5! = 5 × 4 × 3 × 2 × 1 = 120.
How do I calculate logarithms?
log() = base-10 logarithm. ln() = natural logarithm (base e).
Can I use parentheses?
Yes, use parentheses for grouping: (2+3)*4 = 20.