Online Scientific Calculators — Trig, Base Conversion & Statistics
Trigonometry, logarithms and exponents, number-base conversion between HEX/DEC/OCT/BIN, and a descriptive statistics tool for mean, standard deviation and more — all local and instant.
Scientific Calculator
Trig/log/exp/factorial with parentheses, DEG/RAD, inverse (2nd) functions, live result and full keyboard input — instant and local.
Base Converter
Convert between hexadecimal, decimal, octal and binary instantly — choose input base, type, see all four readouts, fully local.
Statistics Calculator
Enter values to get count, sum, mean, population and sample standard deviation, min and max — instant and private.
Three focused tools
Scientific, base conversion and statistics — each on a single dedicated page.
Full keyboard support
Type expressions, bases and values directly; Enter evaluates, Backspace deletes.
Local-first & private
Everything runs in your browser; no data is uploaded or written to history.
Three focused scientific-math tools, each on its own page: a full scientific calculator for trigonometry, logarithms, exponents and factorials with degree/radian mode; a HEX/DEC/OCT/BIN number-base converter; and a descriptive statistics calculator for mean, standard deviation and more. Every tool runs locally in your browser — no sign-up, no tracking — with full keyboard support and six languages.
Scientific calculator
A full keypad for sin/cos/tan and their inverses, ln/log, eˣ/10ˣ, powers, roots, factorial, modulo, parentheses and the constants π and e, with a DEG/RAD toggle, a 2nd function key and a live result preview. Suitable for high-school math and physics through early-college science.
Base converter
Choose an input base — hexadecimal (HEX), decimal (DEC), octal (OCT) or binary (BIN) — and type with the on-screen or physical keyboard. The other three representations update instantly. A–F keys appear automatically for hexadecimal. Handy for programming, networking and digital logic.
Statistics calculator
Enter values one at a time to get count (n), sum (Σx), mean (x̄), population standard deviation (σ), sample standard deviation (s), minimum and maximum. Remove any value with its × chip. A quick tool for homework grades, lab measurements and everyday data checks.
FAQ
QAre the scientific tools free?
Yes, completely free with no sign-up, no ads and no usage limits. All three tools work immediately in the browser.
QCan I convert between HEX, DEC, OCT and BIN?
Yes — open the Base Converter, choose the input base and type; the other three bases update live.
QWhat does the statistics calculator compute?
It shows count, sum, mean, population and sample standard deviation, min and max for any list of numbers.
QDo calculations get saved or uploaded?
No. Everything runs locally and nothing is sent to a server; a page refresh clears all inputs.