Why use this calculator
Cup sizes differ across countries, leading to recipe errors when using international cookbooks. This converter ensures accurate measurements whether you are following a US, Australian, or UK recipe.
How to use it
Enter the amount of cups, select the cup type you are converting from and the type you want to convert to. The calculator instantly shows the converted amount in cups and millilitres.
The formula
converted = amount * (fromCup_ml / toCup_ml)
Worked examples
Convert 2 US cups to Australian cups
2 US cups = 1.893 AU cups (473.2 ml)
Convert 1 UK cup to US cups
1 UK cup = 1.201 US cups (284.1 ml)
When people use it
- Adapting American recipes for Australian kitchens
- Converting UK baking recipes for US measuring cups
- Scaling international recipes accurately
- Understanding volume differences across measurement standards
Tips
- Australian and metric cups are the same size at 250 ml
- UK cups are the largest at 284 ml, so using US cups in a UK recipe will yield less liquid
- For precision baking, always weigh ingredients rather than relying on volume cups
Questions people ask
- Are Australian and metric cups the same?
- Yes, both are exactly 250 ml. Australia adopted the metric cup as its standard.
- Why do cup sizes differ between countries?
- Historical measurement systems evolved independently. The US retained its customary system while Australia adopted metric and the UK kept its imperial measures.