Scientific Calculator
A full scientific calculator with trigonometry, logarithms, exponents, and memory functions, right in your browser.
How the Scientific Calculator works
Type or tap out an expression using the keypad, then press = or Enter to evaluate it. The calculator supports standard order of operations, parentheses, exponents, factorials, and the common scientific functions (sin, cos, tan, log, ln, sqrt).
Switch between degrees and radians for trigonometric functions using the DEG/RAD button, and revisit your last few calculations from the history list below the keypad.
Frequently asked questions
Does this calculator use degrees or radians?
Both — use the DEG/RAD toggle above the keypad to switch modes before using sin, cos, or tan. The current mode is always shown on the button, so you can check it before evaluating an expression.
What operators and functions are supported?
Addition, subtraction, multiplication, division, exponents (^), factorials (!), parentheses, and the sin, cos, tan, log (base 10), ln (natural log), and sqrt functions, plus the constants pi and e.
Is my calculation sent anywhere?
No — every expression is parsed and evaluated directly in your browser using JavaScript. Nothing you type is sent to a server.