1 Cup to Grams: Best Conversion Chart & Calculator

1 cup to grams does not have one universal answer because a cup measures volume while grams measure weight. The gram value changes with the ingredient. For example, 1 US cup of all-purpose flour is 125g, granulated sugar is 200g, butter is 227g, milk is 245g, and uncooked white rice is 185g using our ingredient references.

1 Cup to Grams Conversion Chart

Use this chart to see 1 cup in grams for common cooking and baking ingredients. These values use our US customary cup references.

How Many Grams Are in 1 Cup?

How many grams are in 1 cup depends entirely on the ingredient. A cup measures volume, not weight. This means there is no fixed equation such as “1 cup always equals 200 grams.”

For example, our references give:

• 1 cup flour = 125g
• 1 cup sugar = 200g
• 1 cup butter = 227g
• 1 cup milk = 245g
• 1 cup rolled oats = 90g
• 1 cup uncooked white rice = 185g
• 1 cup honey = 340g

This large range is caused mainly by differences in ingredient density.

How to Convert 1 Cup to Grams

To convert a cup measurement into grams, you need to know the ingredient’s weight per cup.

For example, all-purpose flour weighs 125 grams per cup in our database:

Therefore, 1 cup of all-purpose flour equals 125 grams.

1 Cup Flour in Grams

1 US cup of all-purpose flour equals approximately 125 grams using our standard flour reference.

However, flour type matters:

1 Cup Sugar in Grams

1 cup of granulated sugar equals approximately 200 grams using our reference.

Different types of sugar have different weights:

1 Cup Butter in Grams

Using our butter reference, 1 cup of butter equals approximately 227 grams.

This also means half a cup of butter is approximately 113.5g under the same reference.

1 Cup Rice in Grams

Rice weight depends on the variety and whether it is measured before or after cooking. Our main rice values here refer to uncooked rice.

1 Cup Milk in Grams

Using our practical milk reference, 1 cup of milk is approximately 245 grams.

Milk is heavier per cup than all-purpose flour because liquids and dry ingredients have different densities.

1 Cup Water in Grams

Using a US customary cup volume of 236.588 ml, our practical water reference is:

This value is useful for understanding why cup-to-gram conversions cannot simply be treated as one fixed number for every food.

1 Cup Oats in Grams

The gram weight changes with the type of oats:

1 Cup Yogurt in Grams

Our yogurt reference is 245 grams per US cup. Therefore, one cup of yogurt is approximately 245g in our calculator.

Actual yogurt weight can vary with brand, fat content and thickness, so use the package nutrition information when a recipe requires unusually high precision.

1 Cup Peanut Butter in Grams

Peanut butter is much denser than flour. Using our reference:

Therefore, 1 cup of peanut butter is approximately 258g.

1 Cup Honey in Grams

Honey is relatively dense. Our conversion database uses:

This explains why a cup of honey weighs considerably more than a cup of flour even though both fill the same cup volume.

Is 1 Cup 250 Grams?

No, not for every ingredient. A metric cup has a volume of 250 ml, but that does not mean every cup of food weighs 250 grams. Milliliters measure volume and grams measure mass.

For example:

• 1 cup all-purpose flour = 125g
• 1 cup sugar = 200g
• 1 cup butter = 227g
• 1 cup milk = 245g
• 1 cup peanut butter = 258g
• 1 cup honey = 340g

Is 1 Cup 200 Grams?

Only for certain ingredients under a particular reference. One cup of granulated sugar is 200g in our database, but one cup of all-purpose flour is 125g and one cup of butter is 227g.

So you should never use 200g as a universal conversion for one cup.

1 Cup in Tablespoons and Teaspoons

For a US customary volume conversion:

Remember that these are volume conversions. The gram weight of those 16 tablespoons still depends on the ingredient.

1 Cup in Milliliters

Different measuring systems use different definitions of a cup.

Our main 1 cup to grams values use the US customary cup. You can select another cup standard in the calculator above.

Does Cup Size Change the Gram Result?

Yes. A larger cup holds a larger volume of the same ingredient, so its gram weight increases.

Our calculator adjusts ingredient weight using:

This lets you compare US customary, US legal, metric and imperial cup standards without applying the same gram figure to every cup size.

Why Does 1 Cup Have Different Gram Weights?

The difference comes from density. A cup tells you how much space an ingredient occupies. Grams tell you how much that ingredient weighs.

Rolled oats contain more air space and weigh about 90g per cup under our reference, while dense honey weighs about 340g per cup. Both can fill the same measuring cup while having very different masses.

Dry vs Liquid Ingredients

A common mistake is assuming that a liquid conversion can be applied to a dry ingredient. For example, the gram value of one cup of water cannot be used for flour.

For reliable recipe conversions, always select the actual ingredient rather than using a generic cup-to-grams figure.

How to Measure One Cup Accurately

For dry ingredients, filling and packing technique can affect how many grams fit into a cup. Flour can become compressed when scooped directly from a container, while brown sugar is commonly measured packed.

For recipes that already provide grams, a digital kitchen scale is usually the most repeatable option. If only cups are available, use an ingredient-specific conversion rather than assuming all ingredients weigh the same.

Trusted Measurement References

Our calculator uses consistent ingredient references across Grams To Cup Hub. Actual food weights can vary slightly because of brand, moisture, packing and measuring technique.

• NIST Kitchen Measurement Equivalencies
• King Arthur Baking Ingredient Weight Chart
• USDA FoodData Central

Related Searches for 1 Cup to Grams

Frequently Asked Questions

Final Answer: 1 Cup to Grams

1 cup to grams depends on the ingredient. Using our US customary cup references, 1 cup of all-purpose flour = 125g, granulated sugar = 200g, packed brown sugar = 213g, butter = 227g, milk = 245g, rolled oats = 90g, uncooked white rice = 185g, peanut butter = 258g, honey = 340g, and water ≈ 236.6g.

For another ingredient or cup standard, use the calculator above instead of applying one generic gram value to every cup.