Why can't I just use 1g = 1ml for everything?

That only works for water. Flour is much less dense (1 cup = 125g, not 240g), while honey is denser (1 cup = 340g, not 240g). Each ingredient has its own density, which determines how heavy a given volume is.

What is ingredient density?

Density is the mass per unit volume, expressed as grams per millilitre (g/ml). Water has a density of 1.0 g/ml. Flour has about 0.52 g/ml (much lighter than water), while honey has about 1.42 g/ml (heavier than water).

Which is more accurate, weighing or measuring by volume?

Weighing in grams is always more accurate because it is not affected by how you scoop, pack, or sift the ingredient. Volume measurements can vary by 10-20% depending on technique. For precision baking, always weigh.

How does packing affect the conversion?

The density values used assume a standard, level measure — not packed or sifted. Firmly packed brown sugar, for example, weighs about 220g per cup, but loosely scooped might be only 180g. Sifted flour weighs less per cup than unsifted.

Why is weighing more accurate than measuring by volume?

Volume measurements depend on how you fill the measuring container. A cup of flour can weigh anywhere from 110g to 150g depending on whether it is scooped, spooned, sifted, or settled. Weighing gives the same result every time regardless of technique, making recipes much more reproducible.

BakeCalcs

Cooking Weight to Volume Converter

Convert between weight (grams) and volume (cups, tablespoons, ml) for common cooking ingredients.

Conversion Direction

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Ingredient

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Weight

How We Calculate This

This converter uses ingredient-specific density data to convert between weight and volume. Each ingredient has a different density, so the conversion factor varies.

The Formula

Volume (ml) = Weight (g) / Density (g/ml)
Weight (g) = Volume (ml) x Density (g/ml)
Cups = Volume (ml) / 240
Tablespoons = Volume (ml) / 15

Density Examples

Water: 1.00 g/ml
Flour: 0.52 g/ml
Sugar: 0.83 g/ml
Honey: 1.42 g/ml
Butter: 0.95 g/ml

Frequently Asked Questions

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Last updated: February 2026

All calculations are based on standard ratios and conversions. Results may vary with specific ingredients, equipment, and conditions.