Skip to main content
ilovecalcs logoilovecalcs.

Cooking · Live

Kitchen Unit Converter, grams, cups, and everything between.

Convert between grams, cups, tablespoons, teaspoons, milliliters, and ounces for flour, sugar, butter, milk, water, honey, and rice. Because one cup of flour weighs nothing like one cup of honey.

How it worksReal-time

Inputs

Ingredient & amount

Ingredient

Convert from

Volume unit · Flour density: 0.521 g/mL

1 cup of Flour

→ weight

125g

= 125 g · 4.41 oz

125 g125 grams

All conversions

1 cup of Flour

Volume

cupCupsinput
1
tbspTablespoons
16
tspTeaspoons
48
mLMilliliters
240
fl ozFluid Ounces
8.12

Weight

gGrams
125
ozOunces
4.41

1 cup = 240 mL · 1 tbsp = 15 mL · 1 tsp = 5 mL. Densities are kitchen-measurement averages and may vary slightly by brand or preparation method.

Field guide

Why kitchen conversions need ingredient-specific density.

A cup is a measure of volume. A gram is a measure of weight (mass). Converting between the two requires knowing how much a given ingredient weighs per unit of volume, which is its density. Water is the simplest case: one milliliter of water weighs exactly one gram, so 240 mL (one cup) of water weighs 240 grams.

Every other ingredient is different. A cup of all-purpose flour weighs only about 125 grams, because flour is mostly air between particles. A cup of honey weighs about 340 grams, because honey is a dense liquid. Using the wrong conversion, or ignoring density entirely, can throw a recipe off significantly.

The US cup and its quirks

This converter uses the US legal cup of 240 mL, which is the standard in American recipe books and nutritional labeling. Note that the US customary cup is technically 236.588 mL and the metric cup used in Australia and Canada is 250 mL. For most home cooking, the 4 mL difference between the US customary and the US legal cup is negligible.

For tablespoons and teaspoons, this converter uses US measurements: 1 tablespoon = 15 mL and 1 teaspoon = 5 mL. UK tablespoons are 17.758 mL; Australian tablespoons are 20 mL. If you are following a British or Australian recipe, be aware of this difference.

Ingredient density reference

These are the density values used in this converter, based on standard kitchen measuring technique (spooning ingredients into the cup and levelling off, not packing or sifting):

  • All-purpose flour: 0.521 g/mL. One cup weighs approximately 125 grams. Packed flour can weigh up to 145 grams per cup; sifted flour as little as 100 grams. Always spoon and level for consistent results.
  • Granulated white sugar: 0.833 g/mL. One cup weighs approximately 200 grams. Sugar is naturally denser than flour because the particles pack more efficiently.
  • Unsalted butter: 0.946 g/mL. One cup weighs approximately 227 grams (one standard US pound of butter is 454 grams, or two cups). European butters can be slightly denser due to higher fat content.
  • Whole milk: 1.021 g/mL. One cup weighs approximately 245 grams. Skim milk and 2% milk have slightly different densities but the difference is too small to matter in recipes.
  • Water: 1.000 g/mL exactly. One cup weighs 240 grams. This is the reference point: mL and grams of water are the same number.
  • Honey: 1.417 g/mL. One cup weighs approximately 340 grams. Honey is significantly denser than water, which is why "one cup" of honey delivers far more sweetness by weight than recipes might imply.
  • White rice (uncooked): 0.771 g/mL. One cup weighs approximately 185 grams. This applies to dry, uncooked long-grain white rice measured in a dry measuring cup.

When weight beats volume for baking

Professional bakers weigh ingredients rather than measuring by volume precisely because the density of a cup of flour can vary by 20% or more depending on how it was stored, whether it was sifted, and how the cup was filled. A digital kitchen scale eliminates this variability entirely. If a recipe gives gram weights alongside volume measurements, use the grams.

The reverse applies to liquids: measuring milk, water, or oil by volume (cups or mL) is perfectly accurate because liquids pack their containers fully without air pockets.

Converting between volume units without density

Volume-to-volume conversions (for example, cups to tablespoons) do not require ingredient density. The ratios are fixed:

  • 1 cup = 16 tablespoons = 48 teaspoons = 240 mL
  • 1 tablespoon = 3 teaspoons = 15 mL
  • 1 fluid ounce = 2 tablespoons = 29.574 mL
  • 1 cup = 8.115 fluid ounces

Weight-to-weight conversions similarly need no density: 1 ounce = 28.3495 grams, regardless of the ingredient.

Disclaimer

Ingredient densities vary between brands, preparation methods, humidity, altitude, and measuring technique. The values used here are culinary averages suitable for home cooking. For critical applications (commercial food production, nutritional labeling, or standardised recipe development), always weigh your specific ingredient and record the actual density.