Cooking converter cups to grams by density
Cup is volume, gram is weight, density links them per ingredient. Flour 125g/cup, sugar 200, rice 185, water 236. Multiply cups×density →grams.
TL;DR
- Grams=Cups×density, Cups=Grams/density per ingredient
- Formulas: Grams=Cups×density | Cups=Grams/density
- 2 cups flour
How it works
Grams=Cups×density, Cups=Grams/density per ingredient. Water-only 236 overestimates flour 89%. US 236ml vs UK 284ml matters.
The math
2 cups flour 250g, 300g sugar 1.5 cups. USDA averages.
Flour 125 sugar200 rice185 water236 etc, packed vs sifted ±10%.
Examples
2 cups flour
- 250g
300g sugar
- 1.5 cups
When to use it
✦ Baking
US recipes to scale.
✦ Meal prep
Accurate portions.
⚠ Common mistakes
- Water density for flour
- UK vs US cup
FAQ (6)
Why not just use ml?
You can, but US recipes list cups. Converter bridges US cups to metric grams for scales.
Which ingredient density?
We use USDA averages: flour 125, sugar 200, oats 90. Sifted vs packed shifts ±10%.
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