Convert metric and imperial units, temperature and currency amounts. Check US versus Imperial gallons and manual exchange-rate direction.
Convert Celsius to Fahrenheit or Fahrenheit to Celsius.
Convert between millimetres, centimetres, metres, kilometres, inches, feet, yards and miles using fixed unit definitions..
Convert mass between kilograms, grams, pounds, ounces and stone.
Convert litres and millilitres to or from US liquid gallons and Imperial gallons.
Convert French francs (FRF) and euros with the fixed conversion rate.
Convert an amount in euros using a rate quoted as target units per euro.
Convert an amount using an exchange rate you supply.
Look up common unit relationships and avoid applying length conversion factors directly to area or volume..
Export an audio file to MP3, estimate its size and check the result.
Export a document to PDF and check layout, searchable text, links and privacy before sharing it..
English edition: 16 September 2026.