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Weight resizer for recipes
To use this tool, for example to resize a recipe, just choose if you want to scale up or down, the quantity of the original unit in your recipe.
This tool accepts decimal, integer, fractional values and mixed numbers as input, so you can type values like: 1, 4, 0.5, 1.9, 1/2, 3 1/2, etc.
The fractions / integers show as results may be an exact value or have an approximation error according to the table below:
Exact 1% 2% 5%10%15%
If the fraction error does not fit your needs, you should use the decimal value and possibly increase the number of significant figures.
Choose 'divide' to scale down or 'multiply' to scale up.
How to input values
Choose values from the list or type specific values in the text box. For example.: 1, 2.5, 1/2, 3/4, 1 1/2, etc.
Choose the original unit you want to divide or scale down or multiply or scale up its value.
Approximation error for fractions / whole numbers
Exact 1% 2% 5%10%15%
A list of abbreviations is at the bottom of this page.
To use this tool, for example, to adjust the size of a recipe, simply select whether you want to increase or decrease the amount of the original unit in your recipe.
This calculator was designed to help you convert weight units for use in recipes, so some of the results, particularly fractions, may be approximate and have a small error, which is color-coded to give you more confidence when using the results.
Exact 1% 2% 5%10%15%
What this calculator is for?
This calculator has been written with the difficulty that people who work with cooking recipes have in mind when converting non-metric units of weight (the English or the American system).
For example, suppose we have a particular recipe designed for 3 people where one of the measurements is half a 1/3 cup. If we want to resize this recipe to serve 1 person, how much will the new amount be in tablespoons or even teaspoons?
The simple answer is 1/3 divided by 3 = 1/9 cup or 0.1111 cups. Note that this measurement is too small to measure in cups. It would be better to change the unit to tablespoons or even teaspoons. So, after a bit of maths, we would get the value of 5 tablespoons plus one teaspoon (5 tbsp + 1 tsp). However, with our weight resizer, you would get this answer in seconds and feel much more confident about the results you get.
How to scale up and scale down a recipe
Increasing or decreasing a recipe means adjusting the ingredients and measurements in a recipe to increase or decrease the number of servings. This can be useful if you wish to feed more or fewer people than the recipe originally intended. Here are the steps you can take to increase or decrease a recipe:
- Determine the desired number of servings - Before you start scaling up a recipe, it is important to determine the desired number of servings. For example, if you want to double a recipe that makes four servings, you will need to double all the ingredients to make eight servings.
- Multiply or divide all ingredients by the same factor: To scale up or down a recipe, you will need to multiply or divide all of its ingredients by the same factor. For example, if you want to double a recipe that calls for 1 cup of flour, you will need to use 2 cups of flour.
- Be aware of measurements: some ingredients are more sensitive to measurement changes than others, such as baking powder and baking soda. If you're not careful, you may end up with a recipe that doesn't work.
- Adjust the cooking time and temperature: Scaling a recipe may also require you to adjust the cooking time and temperature. As the number of items increases, it may take longer to cook and you may need to increase the temperature.
- Double-check your measurements: Before you start cooking or baking, double-check your measurements to make sure you have scaled the recipe correctly.
- Taste and adjust: Once you have finished cooking or baking, taste the final product and adjust to taste. You may wish to add more salt, sugar, or spices.
- It is worth noting that scaling up or down a recipe can be a bit tricky and may require some experimentation. It is also important to note that some recipes will not scale well, so it is a good idea to start with a smaller batch and adjust as needed.
Weight units symbols or abbreviations
Here are all the abbreviations used in this weight resizer.
Examples of weight conversions3 kilograms divided by 2 1/3 milligram of oil times 4 0.75 kilogram of oil times 4 1/2 ounce of water divided by 10 0.66 gram of oil times 10
Despite efforts to provide accurate information on this website, no guarantee of its accuracy is made. Therefore, the content should not be used for decisions regarding health, finances, or property.