All Conversion Tools

Convert metric and international customary lengths from exact defining relationships rather than shortened reciprocal constants.

Convert mass among SI, avoirdupois, stone, metric-tonne, and metric-carat units with each convention named.

Convert temperature readings among Celsius, Fahrenheit, and Kelvin while keeping scale offsets, display rounding, and ordinary physical boundaries in context.

Convert liquid capacity using SI and explicitly declared US liquid or US measuring-unit relationships.

Convert U.S. kitchen volume measures, cooking mass units, and selected ingredient estimates without mixing weight, volume, or regional conventions.

Convert square units, acres, and hectares from squared length definitions and declared international-foot relationships.

Convert road, technical, nautical, and aviation speed units from exact distance and time definitions.

Convert psi, bar, kPa, and standard atmosphere without changing a gauge, absolute, or differential pressure reference.

Calculate current and active power with explicit system assumptions, rescale W and kW, or convert a named horsepower convention.

Convert joules, kilojoules, thermochemical calories, and thermochemical kilocalories under a declared convention.

Convert CSS px, rem, em, and pt with required root or reference font-size assumptions visible.

Convert signed angles among degrees, radians, and gradians without normalizing them to one turn.

Convert bits, bytes, and storage prefixes with Decimal SI labels or explicitly selected IEC Binary units.

Convert declared sRGB notations, HSL/HSV coordinates, alpha, and unprofiled CMYK estimates with strict channel grammar.

Convert exact signed integers among binary, octal, decimal, and hexadecimal, or encode text through an explicit UTF-8 or ASCII profile.

Convert elapsed durations or interpret Unix timestamps with the duration, Julian-year, and UTC rules stated explicitly.

Work with byte encodings, URL and HTML contexts, Unicode code points, Morse notation, ROT13, and unverified token inspection under declared profiles.

Parse, validate, format, minify, serialize, and convert structured text with explicit algorithm, dialect, schema, and mapping profiles.

Count and transform text under explicitly documented JavaScript token, code-point, code-unit, whitespace, and case-mapping rules.

Use focused calculators for explicit percentage questions, adult BMI screening values, calendar age, and exact fraction input.

Convert between US miles per gallon and litres per 100 kilometres with the gallon convention visible.

Scale frequencies among Hz, kHz, MHz, and GHz with decimal SI prefixes.

Move supported XLSX, CSV, JSON, DOCX, HTML, Markdown, and plain-text structure through declared browser conversion profiles.

Merge, split, rotate, reorder, and create PDF files with explicit page-operation, preservation, encryption, and resource limits.

Decode, rasterize, and encode supported image files in the browser with visible format, transparency, animation, and metadata limits.