Math

Solve percent of a number, what percent, whole from part, percent change, and percentage point change in one calculator.

Generate random integers or decimals with repeats, sorting, endpoint rules, and optional seeded reproducible results.

Calculate percent error, signed percent error, absolute error, and relative error from accepted and experimental values.

Calculate powers with whole, negative, or fractional exponents and see real-number validity, exact form, and clear steps.

Do binary math and convert binary or decimal with signed values, fixed bit width, quotient, remainder, and overflow notes.

Do hex arithmetic, bitwise operations, and base conversion with width, signedness, and clear cross-base results.

Convert binary, decimal, octal, hex, and text bytes with grouped bits, signed view, and clear encoding notes.

Solve for half-life, elapsed time, amounts, decay constant, and mean lifetime with built-in time-unit conversion checks.

Find positive or negative factors, factor pairs, prime factorization, and divisor counts for any whole number.

Round numbers by decimal places, significant figures, place value, or nearest multiple with a clear rule explainer.