About RefDat Converters

RefDat Converters is part of the RefDat reference-data network: a set of small, focused sites for the answers you keep looking up. We built converters specifically because the existing options were either drowning in pop-ups, defaulted to US measurements when you needed metric, or quietly used 15 mL tablespoons when an Australian tablespoon is 20 mL. That last one breaks recipes.

What's on this site

16 category hubs, each with an interactive converter and a written guide. 358 conversion pairs across the network. One standalone tool: a height predictor that uses four different methods rather than pretending one of them is gospel. Everything works in the browser with no app, no account, no email.

How we verify conversions

Conversion factors come from the International Bureau of Weights and Measures (BIPM), the National Institute of Standards and Technology (NIST), and the Australian National Measurement Institute. Temperature formulas follow the ITS-90 international temperature scale. Cooking measurements use Standards Australia definitions (AS 1766) where applicable. Every calculator is tested in both directions before publishing.

Why Australian context matters

Most converter sites are American by default. That works fine for cm to inches. It fails for cooking (tablespoon size), fuel economy (L/100km vs MPG), and anything where the practical question depends on which country you're standing in. We default to Australian conventions, surface US and UK equivalents alongside, and write the guides so an Aussie reading a US recipe (or an American reading an Aussie one) gets a sensible answer.

Who's behind it

Editor: Mike Townsend. Reach out at contact.