Free Cooking & Baking Measurement Converter
Recipe measurements aren't consistent across countries or cookbooks — American recipes use cups and Fahrenheit, British ones use grams and gas mark, and a "cup" of flour weighs nothing like a cup of honey. This tool covers all three problems: real ingredient-aware cup-to-gram conversion, general volume and weight conversion, and oven temperature conversion.
Why Cups Don't Convert to Grams Directly
A cup is a unit of volume, and a gram is a unit of weight — converting between them requires knowing the ingredient's density. A cup of flour (light, airy) weighs about 120g, while a cup of honey (dense, thick) weighs about 340g — nearly three times as much for the same volume. That's why a generic "1 cup = X grams" answer is always wrong unless it names the ingredient.
Common Ingredient Weights (per US cup)
| Ingredient | Grams | Ounces |
|---|
| All-purpose flour | 120g | 4.2 oz |
| Granulated sugar | 200g | 7.1 oz |
| Brown sugar (packed) | 213g | 7.5 oz |
| Butter | 227g | 8.0 oz |
| Milk | 245g | 8.6 oz |
| Honey | 340g | 12.0 oz |
| Rolled oats | 85g | 3.0 oz |
| Cocoa powder | 84g | 3.0 oz |
US Cup vs. Metric/UK Cup
This tool uses the US cup (236.6ml). A metric cup (used in the UK, Australia, and New Zealand) is 250ml — about 6% larger. For most home baking the difference is small enough to ignore, but it compounds in larger batches or precise baking recipes.
Frequently Asked Questions
How many grams are in a cup of flour? About 120g for all-purpose flour, spooned and levelled (not packed or scooped, which can add 20-30% more).
What's gas mark 4 in Fahrenheit? 350°F (177°C) — a very common baking temperature. Each gas mark step is roughly 25°F.
Why is my converted weight slightly different from a recipe's? Ingredient density varies by brand, freshness, and technique (packed vs. loose, sifted vs. not) — treat these as reliable estimates, not lab-precise figures.
Can I convert tablespoons to grams? Yes — pick "Cups ↔ Grams" mode, choose your ingredient, and set "From" to Tablespoon.