A free online scientific calculator with trigonometric, logarithmic, and power functions.
Frequently Asked Questions
How do I switch between degrees and radians?
Use the "Degrees" checkbox above the keypad. When checked, trigonometric functions expect degrees; when unchecked, they expect radians.
What functions does this calculator support?
Basic arithmetic (+, -, x, /), powers (^), square root, sine, cosine, tangent, base-10 logarithm (log), and natural logarithm (ln), plus the constants pi and e.
Is my calculation processed on a server?
No, all calculations run locally in your browser using a safe expression parser — nothing is sent anywhere.