Cooking Unit Converter

Free Tool

Converting cups to grams depends on the ingredient — 1 cup of all-purpose flour weighs 125g, while 1 cup of granulated sugar is 200g and 1 cup of butter is 227g. That's because each ingredient has a different density, making volume-to-weight conversions ingredient-specific. Use our free converter below to instantly convert between cups, grams, tablespoons, milliliters, ounces, Fahrenheit, Celsius, and more for over 50 common baking and cooking ingredients. You can also paste an entire recipe to convert all measurements at once.

Amount

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125 g

1 cups of all-purpose flour = 125 g

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How Many Grams in a Cup?

The weight of 1 cup varies dramatically by ingredient. Here are the most common baking ingredients with their gram equivalents.

Ingredient	1 Cup (g)	½ Cup (g)	¼ Cup (g)
All-purpose flour	125	63	31
Almond flour	96	48	24
Bread flour	130	65	33
Brown sugar (packed)	220	110	55
Butter	227	114	57
Cake flour	114	57	29
Chocolate chips	170	85	43
Cocoa powder	85	43	21
Confectioners' sugar	120	60	30
Cornstarch	128	64	32
Cream (heavy)	238	119	60
Granulated sugar	200	100	50
Honey	340	170	85
Milk (whole)	245	123	61
Oats (rolled)	90	45	23
Olive oil	216	108	54
Peanut butter	258	129	65
Rice (uncooked)	185	93	46
Water	237	119	59
Whole wheat flour	120	60	30

Why Bakers Prefer Weight Over Volume

A cup of flour can weigh anywhere from 120g to 155g depending on whether you scooped it directly from the bag, spooned it into the cup, or sifted it first. That 30% variance means the difference between a light, tender cake and a dense, dry brick. Professional bakers solve this problem by weighing everything in grams.

Weight measurements are also faster — you can zero your scale between ingredients and add them directly to the mixing bowl. No measuring cups to wash, no leveling off, no second-guessing. If you're serious about consistent baking results, a kitchen scale is the single best investment you can make.

Volume measurements work perfectly fine for liquids and for everyday cooking (soups, sauces, marinades) where precision matters less. The rule of thumb: if the recipe involves flour, sugar, or butter — weigh it. For everything else, cups and tablespoons are fine.

Oven Temperature Conversion Chart

Common oven temperatures in Fahrenheit, Celsius, and Gas Mark with heat level descriptions.

°F	°C	Gas Mark	Description
225°F	107°C	¼	Very Low
250°F	121°C	½	Very Low
275°F	135°C	1	Low
300°F	149°C	2	Low
325°F	163°C	3	Moderately Low
350°F	177°C	4	Moderate
375°F	191°C	5	Moderate
400°F	204°C	6	Moderately Hot
425°F	218°C	7	Hot
450°F	232°C	8	Hot
475°F	246°C	9	Very Hot
500°F	260°C	10	Very Hot

Frequently Asked Questions

Why does 1 cup of flour weigh differently than 1 cup of sugar?

Different ingredients have different densities. Flour is light and airy, so a cup weighs about 125 grams. Sugar crystals pack more tightly, making a cup weigh about 200 grams. This is why professional bakers prefer weighing ingredients — volume measurements can vary by 20% or more depending on how you scoop.

How do I convert cups to grams without a scale?

Use a cups-to-grams conversion chart specific to each ingredient. Our converter above covers 50+ common baking and cooking ingredients with values sourced from King Arthur Baking and the USDA. For the most accurate results, we recommend investing in a kitchen scale — they’re inexpensive and eliminate guesswork entirely.

What’s the difference between fluid ounces and ounces?

Fluid ounces (fl oz) measure volume — how much space a liquid takes up. Ounces (oz) measure weight — how heavy something is. For water, 1 fl oz happens to weigh almost exactly 1 oz, but this doesn’t hold for other ingredients. Honey, for example: 1 fl oz weighs about 1.5 oz because it’s much denser than water.

How do I convert Fahrenheit to Celsius for cooking?

Subtract 32 from the Fahrenheit temperature, then multiply by 5/9. For example, 350°F: (350 − 32) × 5/9 = 176.7°C. Our converter handles this automatically, and the temperature chart below covers all common oven temperatures with their Gas Mark equivalents.

Can I use volume measurements for baking?

You can, but weight measurements are more reliable for baking. A cup of flour can weigh anywhere from 120g to 155g depending on whether you scooped, spooned, or sifted it. That 30% variance can mean the difference between a light cake and a dense brick. For cooking (soups, sauces), volume measurements work fine.

What are Gas Marks?

Gas Marks are a temperature scale used on gas ovens, primarily in the UK and some Commonwealth countries. Gas Mark 1 equals 275°F (135°C), and each mark represents roughly a 25°F (14°C) increase. Gas Mark 4 (350°F / 177°C) is the most common baking temperature. Our converter includes Gas Mark equivalents for all standard oven temperatures.

How accurate is this converter?

Our converter uses standard values from King Arthur Baking and the USDA. Volume-to-volume and weight-to-weight conversions are mathematically exact. Volume-to-weight conversions (like cups to grams) are accurate to within a few grams for properly measured ingredients. For professional precision, always use a kitchen scale.