Guides
Why a cup of flour has no single weight, how the US, UK and Australian kitchens measure differently, and how to move a recipe from cups to a scale. Each guide uses the same sourced figures as the converters.
How to measure flour
A cup of flour can weigh 120 g or 160 g depending on how you fill it. How to measure flour by volume, when to weigh, and why sources disagree.
US, UK and Australian measures compared
A US cup is 236.6 mL, a metric cup 250 mL. An Australian tablespoon is 20 mL. UK and US fluid ounces and pints differ. The full comparison, with sources.
How to convert a recipe from cups to grams
Turn a cup-and-spoon recipe into grams, line by line: which lines to convert, which weights to use, how to round, and a worked chocolate chip cookie example.