Scientific Calculator
A free online scientific calculator with trig, logs, powers, roots and factorials.
How to use the Scientific Calculator
Type or tap an expression. Supports sin, cos, tan and their inverses (degrees or radians), ln, log, square roots, powers (^), factorial (!), percent, π, e and your previous answer (Ans).
Formula
Order of operations: brackets → powers → × ÷ → + −
Worked example
Try: 2^10 + sqrt(144) × sin(30) → 1030
Frequently asked questions
Degrees or radians?
Use DEG for everyday geometry; RAD for calculus and physics formulas.
Does it support implicit multiplication?
Yes — 2π and 3(4+1) work as expected.
Results are estimates for educational and planning purposes. Always confirm important financial, health or legal decisions with a qualified professional. Last reviewed 2026-09-27.