The Complete Cooking Measurement Conversion Guide: Cups, Grams, Tablespoons & More

Why Cooking Conversions Matter More Than You Think

You found the perfect chocolate cake recipe on a French food blog. The ingredients are listed in grams and milliliters. But your measuring tools are marked in cups and tablespoons. Sound familiar? Whether you're an avid home cook trying international recipes, a baker who needs precision, or a meal-prep enthusiast scaling recipes up or down, cooking measurement conversions are one of the most practical math skills you'll ever use.

The difference between a light, fluffy cake and a dense, gummy one can come down to just 10 grams of flour. Unlike savory cooking, where "a pinch of this" and "a dash of that" can work, baking demands accuracy. This guide gives you every conversion you need — with real numbers you can use tonight.

Cups to Grams: The Conversion Every Baker Needs

Here's the fundamental problem: a cup measures volume, while a gram measures weight. The weight of a cup of any ingredient depends on its density. A cup of flour weighs far less than a cup of sugar, which weighs less than a cup of butter.

These are the standard weights for common baking ingredients measured in a US legal cup (240 mL):

Ingredient	1 Cup (grams)	½ Cup (grams)	¼ Cup (grams)
All-purpose flour	120 g	60 g	30 g
Bread flour	127 g	63.5 g	31.75 g
Granulated sugar	200 g	100 g	50 g
Brown sugar (packed)	220 g	110 g	55 g
Powdered sugar	120 g	60 g	30 g
Butter	227 g	113.5 g	56.75 g
Cocoa powder	85 g	42.5 g	21.25 g
Rolled oats	90 g	45 g	22.5 g
Honey or maple syrup	340 g	170 g	85 g
Milk or water	240 g	120 g	60 g

Real-world example: A recipe calls for 360 grams of all-purpose flour. How many cups is that? Divide 360 by 120 = 3 cups. What about 500 grams of granulated sugar? Divide 500 by 200 = 2.5 cups.

Tablespoons and Teaspoons: Small Measurements, Big Impact

When you're measuring baking powder, vanilla extract, or salt, the tablespoon and teaspoon become your best friends. Here are the essential conversions:

• 1 tablespoon (tbsp) = 3 teaspoons (tsp)
• 1 tablespoon = 14.79 milliliters (mL)
• 1 teaspoon = 4.93 milliliters (mL)
• 1 tablespoon of water = 14.79 grams
• 1 teaspoon of water = 4.93 grams
• 1 tablespoon of butter = 14.18 grams
• 1 teaspoon of salt = 5.69 grams
• 1 teaspoon of baking powder = 4.8 grams

Real-world example: A European recipe calls for 20 mL of vanilla extract. How many tablespoons is that? Divide 20 by 14.79 = 1.35 tablespoons, or roughly 1 tablespoon + 1 teaspoon (since 1 tsp = 4.93 mL, and 14.79 + 4.93 = 19.72 mL ≈ 20 mL).

Ounces to Grams: Bridging the US-UK Cooking Divide

Many American recipes use ounces for both weight and fluid volume, which creates confusion. In cooking:

• 1 ounce (weight) = 28.35 grams
• 1 fluid ounce (volume) = 29.57 milliliters
• 1 pound = 16 ounces = 453.59 grams

Real-world example: A recipe calls for 8 ounces of cream cheese. One standard package of cream cheese in the US is 8 oz = 227 grams. If you're using a European brand sold in 200g packages, you'll need to add an additional 27 grams (about 2 tablespoons) to match the recipe.

Milliliters to Cups: For Liquid Ingredients

Liquids are measured by volume, so the conversion is straightforward regardless of the liquid type:

• 1 cup = 236.59 mL (often rounded to 240 mL)
• ½ cup = 118.29 mL
• ⅓ cup = 78.86 mL
• ¼ cup = 59.15 mL
• 1 tablespoon = 14.79 mL
• 1 teaspoon = 4.93 mL
• 1 liter = 4.23 cups = 33.81 fluid ounces

Real-world example: A soup recipe calls for 750 mL of chicken broth. How many cups is that? Divide 750 by 236.59 = 3.17 cups, or approximately 3 cups + 3 tablespoons (since 0.17 × 236.59 ≈ 40 mL, and 40 ÷ 14.79 ≈ 2.7 tablespoons).

Scaling Recipes: Doubling and Halving Made Easy

One of the most common cooking math tasks is scaling a recipe. Here's a quick reference for the most common scaling factors:

Original Amount	Half (÷2)	Double (×2)	Triple (×3)
1 cup	½ cup	2 cups	3 cups
¾ cup	6 tbsp	1½ cups	2¼ cups
⅔ cup	⅓ cup (5⅓ tbsp)	1⅓ cups	2 cups
½ cup	¼ cup	1 cup	1½ cups
⅓ cup	2⅔ tbsp	⅔ cup	1 cup
¼ cup	2 tbsp	½ cup	¾ cup
2 tbsp	1 tbsp	¼ cup	6 tbsp
1 tbsp	1½ tsp	2 tbsp	3 tbsp
1 tsp	½ tsp	2 tsp	1 tbsp

Pro tip: When scaling baking recipes, it's more accurate to work in grams. If a recipe calls for 180 grams of flour and you want to triple it, that's simply 180 × 3 = 540 grams. No fractions, no confusion.

Temperature Conversions for Cooking

Oven temperatures are another common source of confusion. Here are the most frequently used oven temperatures:

• 275°F = 135°C (very low/slow)
• 300°F = 150°C (low)
• 325°F = 163°C (moderate)
• 350°F = 177°C (moderate — the most common baking temp)
• 375°F = 190°C (moderately hot)
• 400°F = 204°C (hot)
• 425°F = 218°C (very hot)
• 450°F = 232°C (very hot — pizza, bread)

Quick mental conversion: To roughly convert Celsius to Fahrenheit, double the Celsius number and add 30. For example, 180°C × 2 + 30 = 390°F (the actual answer is 356°F — close enough for oven settings, which are typically rounded to the nearest 25°F).

Why Weight Beats Volume in the Kitchen

Professional bakers almost always use a kitchen scale, and here's why: volume measurements are inconsistent. A cup of flour can weigh anywhere from 110 to 160 grams depending on how you scoop it. That's a 45% variation — enough to ruin a recipe.

When you weigh ingredients:

• Accuracy: 100 grams of flour is always 100 grams, regardless of how it's packed.
• Consistency: Your recipes turn out the same every time.
• Fewer dishes: You can measure directly into your mixing bowl using the tare function.
• Easy scaling: Multiplying grams is simple math with no fractions.

A decent digital kitchen scale costs $10-15 and will improve your baking more than any other single tool.

Frequently Asked Questions

1. How many grams are in a cup of flour?

One cup of all-purpose flour weighs approximately 120 grams when spooned and leveled. However, if you dip your measuring cup directly into the flour bag, you can pack in up to 160 grams. This is why weighing is recommended for baking.

2. Is a US cup the same as a UK cup?

No. A US cup is 236.59 mL, while a UK (imperial) cup is 284.13 mL. However, most modern UK recipes use the metric cup of 250 mL. Always check which system your recipe uses.

3. How do I convert cups to grams for any ingredient?

You need to know the density of the ingredient. The general formula is: grams = cups × density (g/mL) × 236.59. For example, olive oil has a density of about 0.92 g/mL, so 1 cup of olive oil = 1 × 0.92 × 236.59 = 217.7 grams.

4. How many tablespoons are in a cup?

There are 16 tablespoons in 1 cup. This is true regardless of the ingredient since tablespoons and cups are both volume measurements.

5. What's the difference between a fluid ounce and a regular ounce?

A fluid ounce (fl oz) measures volume (29.57 mL), while an ounce (oz) measures weight (28.35 grams). For water and most liquids with similar density, 1 fluid ounce ≈ 1 ounce by weight. But for denser liquids like honey, 1 fluid ounce weighs about 1.4 ounces.

6. Can I use a liquid measuring cup for dry ingredients?

You can, but it's less accurate. Liquid measuring cups are designed to be filled to a line at eye level, while dry measuring cups are designed to be filled to the top and leveled off. For best results, use the right type of cup — or better yet, use a scale.

Whether you're converting a French pastry recipe from grams to cups, scaling up a family soup recipe for a dinner party, or trying to figure out what 200°C means on your American oven, having these conversions at your fingertips will make you a more confident and capable cook. Bookmark this page and use our converter tool whenever you need a precise answer in seconds.