UtilibyCooking Measurement Converter
Convert cups, grams, ounces, millilitres, tablespoons and oven temperatures with ingredient-specific accuracy. Free, private and no sign-up.
What is a free cooking measurement converter online?
A free cooking measurement converter online is a tool that converts between the many units used in recipes around the world — cups, tablespoons, teaspoons, millilitres, litres, fluid ounces, pints, quarts and gallons for volume; grams, kilograms, ounces and pounds for weight; and Celsius, Fahrenheit and Gas Mark for oven temperatures.
The challenge is that recipes from different countries use different standards. A US cup holds about 236.6 millilitres, while a metric cup used in many other countries holds exactly 250 millilitres. A cup of flour weighs about 125 grams, but a cup of sugar weighs about 200 grams, and a cup of honey weighs about 340 grams. A cooking measurement converter that ignores these differences produces errors of 40 to 170 percent. This tool accounts for all of them.
How to use this free cooking measurement converter online
- Choose a conversion mode: Volume, Weight, Ingredient or Temperature.
- Enter your amount and select the source unit.
- Select the target unit. For cup-based conversions, choose whether you want US or Metric cup standards.
- In Ingredient mode, select your ingredient first — this ensures the weight-to-volume conversion uses the correct density.
- Read the result instantly. Use the swap button to reverse the conversion.
- Click Copy result to paste the value into your notes or recipe card.
Cooking measurement conversions explained
Volume conversions
Volume measures how much space an ingredient occupies. Common volume units include teaspoons (tsp), tablespoons (tbsp), cups, fluid ounces (fl oz), millilitres (ml), litres (l), pints, quarts and gallons. Volume-to-volume conversions use fixed mathematical ratios. For example, 1 cup = 16 tablespoons = 48 teaspoons = 8 fluid ounces.
Weight conversions
Weight measures how heavy an ingredient is. Common weight units include grams (g), kilograms (kg), ounces (oz) and pounds (lb). Weight-to-weight conversions are also fixed: 1 kilogram = 1,000 grams, 1 pound = 16 ounces = 453.592 grams.
Volume-to-weight conversions
This is where ingredient density matters. A cup of flour and a cup of sugar occupy the same volume but weigh different amounts. Flour weighs about 125 grams per cup, sugar about 200 grams, brown sugar about 220 grams, honey about 340 grams. This converter uses ingredient-specific densities so your conversions are accurate.
Common ingredient weights per US cup
| Ingredient | Grams / cup | Category |
|---|---|---|
| All-purpose flour | 125 g | Baking |
| Bread flour | 127 g | Baking |
| Granulated sugar | 200 g | Sweetener |
| Brown sugar (packed) | 220 g | Sweetener |
| Butter | 227 g | Fat |
| Honey | 340 g | Liquid sweetener |
| Milk | 245 g | Dairy |
| Water | 236 g | Liquid |
| Cocoa powder | 85 g | Baking |
| Rolled oats | 90 g | Grain |
Oven temperature conversion chart
| Celsius | Fahrenheit | Gas Mark | Description |
|---|---|---|---|
| 110°C | 225°F | ¼ | Very cool |
| 130°C | 250°F | ½ | Very cool |
| 150°C | 300°F | 2 | Cool |
| 170°C | 325°F | 3 | Moderate |
| 180°C | 350°F | 4 | Moderate |
| 190°C | 375°F | 5 | Moderate |
| 200°C | 400°F | 6 | Moderately hot |
| 220°C | 425°F | 7 | Hot |
| 230°C | 450°F | 8 | Hot |
| 240°C | 475°F | 9 | Very hot |
Why ingredient density matters
One cup of flour does not weigh the same as one cup of sugar, honey, rice, cocoa or nuts. A generic converter that treats every cup the same produces errors of 40 to 170 percent when converting between volume and weight. This is why professional bakers weigh ingredients rather than using cup measures.
The spoon-and-level method — spooning flour into a cup, then levelling with a knife — is the standard technique that the density values in this converter assume. Scooping flour directly from the bag compacts it, adding up to 30 grams per cup. That single measuring error can add 25 percent more flour to a recipe, resulting in dry, dense baked goods.
Frequently asked questions
How many grams are in a cup of flour?
One US cup of all-purpose flour weighs approximately 125 grams when measured using the spoon-and-level method. Scooping directly from the bag compacts the flour and can add up to 30 extra grams per cup.
How many grams are in a cup of sugar?
One US cup of granulated sugar weighs approximately 200 grams. Brown sugar weighs about 220 grams per cup when packed.
Why is a cup of flour not the same weight as a cup of sugar?
Cups measure volume, while grams measure weight. A cup of flour and a cup of sugar occupy the same space but have different densities, so they weigh different amounts. Flour is less dense than sugar.
What is the difference between a US cup and a metric cup?
A US customary cup holds approximately 236.6 millilitres, while a metric cup used in many countries holds exactly 250 millilitres. This calculator lets you switch between both standards.
How do I convert oven temperatures?
Use the Temperature mode in this converter. Enter a value in Celsius or Fahrenheit and the tool shows the equivalent in both scales, plus the corresponding Gas Mark for UK recipes.
Is this cooking measurement converter free?
Yes. It is completely free, runs entirely in your browser, requires no sign-up and never sends your measurements anywhere.
How accurate are ingredient weight conversions?
Ingredient conversions are accurate estimates based on standard density values. Actual weights vary with packing, grind size, moisture, brand and measuring technique. For precision baking, weighing ingredients directly is always recommended.