How many grams are in a cup of flour?

One US cup of all-purpose flour weighs approximately 120-125 grams. However, this can vary significantly based on how the flour is measured (scooped vs spooned) and how compacted it is. For accurate baking, weighing ingredients with a kitchen scale is always more reliable than using cup measurements.

Why do recipes use grams instead of cups?

Professional bakers and most international recipes use grams because weight measurements are far more precise and consistent. A cup of flour can weigh anywhere from 100 to 150 grams depending on how it is scooped, while 125 grams is always 125 grams. This consistency produces more reliable baking results.

How do I convert cups to grams for different ingredients?

Cup-to-gram conversions differ for every ingredient because they have different densities. One cup of sugar weighs about 200g, one cup of butter weighs about 227g, and one cup of rice weighs about 185g. You need to look up the specific conversion for each ingredient rather than using a universal formula.

What is the difference between a US cup and a metric cup?

A US cup is 236.6 ml while a metric cup (used in Australia and New Zealand) is exactly 250 ml. This 5.7% difference can affect recipe outcomes, particularly in baking. The UK does not use cups as a standard measurement, relying primarily on millilitres and grams.

Do I need a kitchen scale for baking?

A kitchen scale is highly recommended for baking, especially for bread, pastries, and precision recipes. Scales accurate to 1 gram are available for under $15 and eliminate the inconsistency of cup measurements. Many professional bakers consider a scale the single most important tool for improving baking results.

Weight Conversion for Cooking: Cups to Grams Made Easy

Why Weight Matters in Cooking

Volume measurements (cups) are imprecise. The same cup of flour can weigh 120-150g depending on how it's scooped. Weight measurements give consistent results every time.

Professional bakers always use weight because:

More accurate than volume

Consistent results every time

Easier to scale recipes

Fewer dirty measuring cups

Common Ingredient Conversions

Flour

Note: Flour weight varies by type and how it's measured.

Sugar

Butter and Fats

Butter sticks:

1 stick = 1/2 cup = 113g = 8 tbsp

Liquids

Note: 1 mL of water = 1 gram (density may vary for other liquids)

Common Baking Ingredients

Volume to Volume Conversions

US Measurements

US to Metric Volume

Measurement	All-Purpose	Bread	Cake
1 cup	125g	130g	115g
1/2 cup	63g	65g	58g
1/4 cup	31g	33g	29g
1 tbsp	8g	8g	7g
Measurement	Granulated	Brown (packed)	Powdered
1 cup	200g	220g	120g
1/2 cup	100g	110g	60g
1/4 cup	50g	55g	30g
1 tbsp	13g	14g	8g
Measurement	Butter	Oil
1 cup	227g	224g
1/2 cup	113g	112g
1/4 cup	57g	56g
1 tbsp	14g	14g
Measurement	Weight	mL
1 cup	237g	237
1/2 cup	118g	118
1/4 cup	59g	59
1 tbsp	15g	15
Ingredient	1 Cup Weight
All-purpose flour	125g
Bread flour	130g
Whole wheat flour	120g
Granulated sugar	200g
Brown sugar (packed)	220g
Powdered sugar	120g
Butter	227g
Milk	245g
Heavy cream	232g
Honey	340g
Maple syrup	315g
Cocoa powder	85g
Rolled oats	90g
Rice (uncooked)	185g
Chocolate chips	175g
Measurement	Equivalent
1 cup	16 tablespoons
1 cup	48 teaspoons
1 tablespoon	3 teaspoons
1/2 cup	8 tablespoons
1/4 cup	4 tablespoons
US	Metric (approx)
1 cup	240 mL
1/2 cup	120 mL
1/4 cup	60 mL
1 tablespoon	15 mL
1 teaspoon	5 mL

How to Measure Accurately

Measuring Flour (by Volume)

Spoon and Level Method:

Fluff flour in container

Spoon into measuring cup

Level with straight edge

Never pack or tap

Why it matters: Scooping directly can add 20-30% more flour.

Measuring Flour (by Weight)

Place bowl on scale

Zero/tare the scale

Add flour until target weight

Perfect every time

Measuring Brown Sugar

Pack firmly into cup

Should hold shape when dumped

Weight is more accurate

Measuring Liquids

Use liquid measuring cup

Read at eye level

Check meniscus (bottom of curve)

Converting Recipes

Scaling Up

Double recipe: × 2

1.5× recipe: × 1.5

Weight makes this easy!

Scaling Down

Half recipe: ÷ 2

Quarter recipe: ÷ 4

Example Conversion

Original Recipe (Volume):

2 cups flour

1 cup sugar

1/2 cup butter

Converted (Weight):

250g flour

200g sugar

113g butter

Baking Ratios

Professional bakers use ratios:

Pound Cake

Bread

Tips for Better Baking

Invest in a kitchen scale - Under $20, lasts years

Use grams, not ounces - More precise

Tare between ingredients - Add directly to bowl

Write down your conversions - Build your own reference

Check recipe source - US vs UK cups differ slightly

Common Mistakes to Avoid

❌ Packing flour into cups
❌ Forgetting to level dry ingredients
❌ Assuming all ingredients weigh the same
❌ Not accounting for brown sugar packing
❌ Confusing fluid ounces with weight ounces

Convert Cooking Measurements

Use our unit converter to convert between cups, grams, ounces, and more. Perfect for adapting recipes from any country.

Why Weight Matters in Cooking

Volume measurements (cups) are imprecise. The same cup of flour can weigh 120-150g depending on how it's scooped. Weight measurements give consistent results every time.

Professional bakers always use weight because:

More accurate than volume

Consistent results every time

Easier to scale recipes

Fewer dirty measuring cups