Units & Conversion
Convert length, mass, temperature, area, world time zones and currency. Exact conversion factors, shown alongside the result so you can verify the maths.
Unit conversion errors often go unnoticed because results seem plausible. Our converters display the exact multiplication factors and base SI units used, ensuring transparent and verifiable calculations.
Measurement and exchange
Convert across imperial and metric physical units (length, weight, temperature, area), compare global time zones for meetings, and check live currency valuations.
Universal Unit Converter
Quickly convert between standard length, weight, data, and temp units.
Open the universal unit converterGlobal Currency Converter
Calculate currency cross-rates using fixed illustrative assumptions; not live market quotes.
Open the global currency converterTime Zone Converter
Convert meeting times across UTC, EST, PST, GMT, and IST.
Open the time zone converterOther tool categories
Or see every Yuitility tool on one page.
Local-first by design
Every tool on this page runs entirely in your browser. Your files and data never leave your device — no uploads, no server processing, no tracking. Works offline after first load.