Exact, symbolic, instant
Calculate trillions.
Round nothing — until you say so.
Every fraction stays exact. Every π and √ stays symbolic. Nothing touches a floating-point approximation until you ask for a decimal.
Type an expression and press Calculate — or just keep typing, results update live.
Three things every calculator should promise
Most don't. This one does, on every calculation, every time.
No floating-point drift
Every number is stored as a BigInt-backed fraction. 0.1 + 0.2 really is 0.3 — not 0.30000000000000004. Multiply two 12-digit numbers and the last digit is still correct.
π and √ stay themselves
πr² stays exactly πr² until you ask for a decimal. √8 simplifies to 2√2 automatically. Quadratic roots that land on irrational numbers show the exact surd, not a rounded guess.
No spinner, ever
Parsing, solving, and factoring all happen in your browser, in the same frame it paints. Nested parentheses, multi-variable formulas, and quadratics resolve as fast as you can type.