Grams to Cups and Tablespoons Converter

This calculator converts grams to cups and tablespoons for common cooking ingredients. Enter the weight in grams and select the ingredient, and you get the equivalent volume in both US cups and tablespoons, based on that ingredient’s density. The result updates instantly as you type.

Formula

The conversion uses the density (mass per volume) of the ingredient. The basic formula is:

Volume = Mass ÷ Density

For cups: Cups = (grams × density factor) ÷ 236.588

For tablespoons: Tbsp = (grams × density factor) ÷ 14.787

Where:

• grams – the weight you have (g)
• density factor – the ingredient’s specific gravity (g/mL). For example, water is 1.0, all-purpose flour is about 0.529 g/mL, granulated sugar is 0.845 g/mL.
• 236.588 – milliliters in one US cup
• 14.787 – milliliters in one US tablespoon

Note: The density factor is approximate and can vary with humidity, packing, and brand. For flour, spooning into the cup gives a different weight than scooping.

Worked Example

Using the default values: 100 grams of all-purpose flour (density factor 0.529).

1. Convert grams to milliliters: 100 g × 0.529 = 52.9 mL
2. Convert to cups: 52.9 mL ÷ 236.588 = 0.2236 cups
3. Rounded to 2 decimals: 0.22 cups
4. Convert to tablespoons: 52.9 mL ÷ 14.787 = 3.577 tbsp
5. Rounded: 3.58 tablespoons

So 100 g of all-purpose flour is about 0.22 US cups or 3.58 tablespoons.

Why Grams and Cups Don’t Always Match

Grams measure weight (mass), while cups and tablespoons measure volume. One cup of flour weighs about 120 grams, but one cup of sugar weighs 200 grams. That’s because flour is fluffy and sugar is dense. If you use a generic conversion (like “1 cup = 240 grams�) you’ll get wrong results for most ingredients. This is why recipes from different countries can be confusing – US recipes use volume, while most of the world uses weight.

Professional bakers prefer grams because they are exact. A cup of flour can vary by 20% depending on how you fill it. Using a kitchen scale eliminates that variation.

How to Use the Calculator

• Enter the number of grams in the first field.
• Select the ingredient from the dropdown – each has a specific density factor.
• Read the result in US cups and tablespoons.
• If your ingredient isn’t listed, you can estimate: for most dry goods, use 0.5–0.6 g/mL; for liquids, use 1.0 g/mL unless it’s oil (0.91) or honey (1.42).

The calculator uses US legal cups (240 mL) and US tablespoons (15 mL). If you need metric cups (250 mL) or imperial tablespoons (17.7 mL), the numbers will be slightly different.

Common Mistakes and Misconceptions

• Using a generic “grams to cups� table – these assume water density (1 g/mL) and are wrong for flour, sugar, and most solids.
• Confusing US and metric cups – a US cup is 236.6 mL, a metric cup is 250 mL. A 4% difference can matter in baking.
• Scooping flour directly with the measuring cup – this packs the flour and can add 20% more weight. Always spoon flour into the cup and level it.
• Measuring sticky ingredients like honey or molasses – they stick to the cup, so you lose volume. Spray the cup with oil first or use weight.
• Ignoring temperature – butter density changes slightly when melted, but for most recipes it’s negligible.

When to Use Weight vs. Volume

Use grams when:

• You’re baking bread, pastries, or anything where precision matters.
• The recipe gives weights (most professional and European recipes).
• You’re scaling a recipe up or down – weights scale linearly, volumes don’t.

Use cups/tablespoons when:

• The recipe is written that way (common in US home cooking).
• You’re cooking, not baking – small variations won’t ruin a stew.
• You don’t have a scale (though a scale is cheap and recommended).

Density Factors Explained

The density factor is the weight in grams of 1 milliliter of the ingredient. Water is exactly 1.0. Here are typical values (approximate):

• All-purpose flour: 0.529 (varies with sifting)
• Granulated sugar: 0.845
• Butter: 0.911 (solid, at room temp)
• Milk: 1.03
• Olive oil: 0.91
• Honey: 1.42
• Table salt: 1.2
• Uncooked rice: 0.85
• Rolled oats: 0.4

These are averages. For example, bread flour is slightly denser than all-purpose, and cake flour is lighter. If you need exact results, weigh your own cup of the ingredient once and adjust.

Frequently Asked Questions

How many cups is 100 grams of flour?

Using the density factor of 0.529 g/mL, 100 g of all-purpose flour equals about 0.22 US cups (or 3.58 tablespoons). That’s roughly 1/4 cup minus a teaspoon. Always spoon flour into the cup for accuracy.

How many grams are in a cup of butter?

One US cup of butter weighs 227 grams (8 ounces). That’s because butter’s density is about 0.911 g/mL. In tablespoons, 1 cup of butter is 16 tablespoons, so 1 tablespoon weighs about 14.2 grams.

Is 250 grams equal to 1 cup?

Only for water. 250 mL of water weighs 250 grams. For flour, 250 grams is about 2 cups (since 1 cup flour weighs ~120 g). For sugar, 250 grams is about 1.2 cups. Always check the ingredient.

Why do some recipes use “1 cup = 240 grams�?

That’s a simplification for water or liquids. It’s not accurate for solids. If a recipe uses that conversion for flour, it will be wrong. Use a scale or this calculator instead.

Can I convert grams to cups for any ingredient?

Yes, if you know the density. This calculator covers common ones. For anything else, you can look up the density or estimate. For example, cocoa powder is about 0.5 g/mL, so 100 g is about 0.42 cups.

What’s the difference between US and metric cups?

A US cup is 236.6 mL, a metric cup is 250 mL, and an imperial cup (rare) is 284 mL. Most modern recipes use US cups. This calculator uses US cups. If you use a metric cup, multiply the result by 0.946.

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in g | Grams | g | 100 | 0
sel i | Ingredient | All-purpose flour=0.529, Granulated sugar=0.845, Butter=0.911, Water=1.0, Milk=1.03, Olive oil=0.91, Honey=1.42, Salt (table)=1.2, Rice (uncooked)=0.85, Oats=0.4
out cups | Cups (US) | cups | g * i / 236.588 | 2
out tbsp | Tablespoons (US) | tbsp | g * i / 14.787 | 2