Numbers/16 tools

Numbers

Convert number systems and evaluate expressions.

Runs on your deviceFree. No account needed.

Number to Words ConverterNumbersSpell exact numbers in eight languages, or convert complete English cardinal words back to integers.

Fraction CalculatorNumbersAdd, subtract, multiply, divide and simplify fractions with exact results and decimal previews.

Matrix CalculatorNumbersFind determinants, inverses and products using exact fractions. Paste matrices and export tab-separated results.

Number Sequence GeneratorNumbersGenerate exact Fibonacci, Lucas, arithmetic, geometric and custom recurrence sequences without losing large digits.

Prime Number CalculatorNumbersCheck primes, factor integers, list divisors and generate neighboring primes with strict input validation.

Number List CalculatorNumbersSum decimals exactly, calculate statistics, sort large numbers and filter a numeric list.

Math Constants GeneratorNumbersGet up to 1000 decimal digits of pi, e or the golden ratio, or extract a selected digit window.

Exact Integer CalculatorNumbersAdd, subtract, multiply and divide large integers. Find GCD, LCM and running totals with exact results.

Bitwise CalculatorNumbersCalculate AND, OR, XOR, complements, shifts and rotations with an explicit bit width and signed interpretation.

Integer & Digit ToolsNumbersReverse, rotate, sort and inspect digits. Filter odd or even integers and format thousands without rounding large values.

Binary Code ConverterNumbersConvert reflected Gray code, 8421 BCD and negabinary alongside binary, decimal, octal and hexadecimal.

Roman Numeral ConverterNumbersConvert numbers from 1 to 3999 to Roman numerals and validate Roman notation in the other direction.

IP Address ConverterNumbersConvert IPv4 and IPv6 to binary, hexadecimal, decimal or octal, and convert numeric representations back to addresses.

Color ConverterNumbersConvert CSS HEX, RGB, HSL and named colors. Preview each color and preserve its alpha channel.

Number Base ConverterNumbersConvert integers, finite fractions and repeating fractions between bases 2–36 with exact arithmetic.BINDECHEX

Math EvaluatorNumbersCalculate expressions with a readable result history.ƒ(x)∑