Why Ingredient-Aware Conversion Matters
I built this converter because the single most common baking mistake is treating volume and weight as interchangeable — they are not. A cup of flour and a cup of water both fill the same container, but they weigh very different amounts. This converter uses actual density values for each ingredient rather than a generic constant, which is why the results are accurate enough to rely on for serious baking.
The density of key baking ingredients varies enormously:
- All-purpose flour: approximately
125 g per cup(when spooned and levelled) - Caster sugar: approximately
200 g per cup - Brown sugar (packed): approximately
220 g per cup - Butter: approximately
227 g per cup - Water / milk: approximately
240 g per cup(close to density of water) - Honey: approximately
340 g per cup(much denser than water)
Use this converter whenever a recipe uses a measurement system different from your kitchen scales — or when you want to be precise instead of relying on volumetric scooping, which can vary by ±20% depending on technique.
Common Measurement Conversions at a Glance
Beyond ingredient-specific weight conversions, there are fixed volume relationships that never change regardless of ingredient. These are useful for scaling recipes or substituting measuring tools.
1 cup = 16 tablespoons = 48 teaspoons1 tablespoon = 3 teaspoons = 15 ml1 US cup = 236.6 ml1 UK cup = 284 ml(slightly larger than the US cup)1 fl oz = 29.57 ml
Frequently Asked Questions
Why does the same recipe give different results when I use cup measures?
Scooping flour directly from the bag packs it in, adding up to 30% more flour than the recipe intended. Professional bakers always spoon flour into the cup measure and level it off with a straight edge — but weight measurement eliminates this variability entirely. A recipe that calls for 125 g of flour is unambiguous; "1 cup of flour" depends entirely on technique.
Is an Australian tablespoon the same as a US tablespoon?
No. A US tablespoon is 14.8 ml, while an Australian tablespoon is 20 ml — roughly one-third larger. This difference can matter significantly in recipes with small quantities of leavening agents (baking powder, bicarbonate of soda). When following recipes from a different country, check which tablespoon standard is being used.
Can I convert any ingredient with this tool?
The converter covers over 30 common baking and cooking ingredients with accurate density values. For ingredients not in the list, use the generic "other" option which assumes a density close to water. For highly unusual ingredients, the best approach is to weigh a known volume yourself and use the resulting density.
