King Arthur Baking
Primary reference for flour, sugar, and common baking ingredient weights in US cups.
Last updated: July 2026
Accurate cooking and baking conversions — built for real kitchens, real recipes, and real results.
Kitchen Unit Converter is the trust and methodology center behind CupConverter. We explain how our conversion tools are built, who maintains them, which sources guide our data, and how readers can contact us when a value needs review.
Our mission
Kitchen Unit Converter was built to solve one of the most frustrating problems in home baking: unit confusion. Every day, home bakers open a recipe and hit the same wall. The recipe is in cups, but they have a kitchen scale. Or it is in grams, but they only have measuring cups. Or it calls for two sticks of butter and they have a European 250g block. Or it says one cup of flour and they do not know if that means 120 grams or 150 grams because both numbers appear online.
We built this site because many conversion tools give a single number with no context. They do not explain why one cup of flour can weigh anywhere from about 100g to 165g depending on how it is measured. They do not warn that brown sugar must be packed, or that "1 cup sifted flour" and "1 cup flour, sifted" are not the same instruction.
Our mission is simple: provide accurate, complete, and clearly explained unit conversion tools for cooking and baking. Every converter should give readers more than a number. It should also explain the assumption behind the result so the answer can be used correctly in a real kitchen.
Who we are
Kitchen Unit Converter is an independent cooking reference website operated by a small team of baking enthusiasts, food writers, and web developers who share a common frustration with inaccurate and incomplete cooking conversion tools.
We are not a large media company, and we do not claim to run a full professional test kitchen. What we do have is a commitment to accuracy and transparency. Conversion values on this site are cross-referenced against professional sources, including King Arthur Baking's ingredient weight guidance, USDA FoodData Central, manufacturer specifications where appropriate, and established culinary science references.
We believe accurate measurement is the foundation of successful baking. A 20% flour measurement error can be the difference between a tender cake and a dense, dry result. Kitchen Unit Converter launched in 2025 to help home bakers avoid those failures, understand why they happen, and build more reliable measurement habits.
Content methodology
Every conversion tool and reference table on Kitchen Unit Converter follows a documented review process before publication.
Primary reference for flour, sugar, and common baking ingredient weights in US cups.
Nutrition and density context for common food ingredients and pantry staples.
Used for specialty ingredients such as alternative flours, sweeteners, and packaged baking products.
Used for density values, substitution ratios, and comparisons between measurement methods.
Values are cross-referenced against at least two independent sources before publication. Where sources disagree, especially for flour weights, we document the discrepancy and explain why different measuring methods produce different numbers.
We review and update conversion tables regularly based on new data and user feedback. Pages display a "Last updated" or "Last verified" date so readers can see how current the information is.
Cooking and baking measurements vary with humidity, temperature, brand, storage, and measuring technique. Our values represent standard practical conditions, and precision baking should still use direct weight measurements.
The reusable conversion dataset is maintained in src/conversions.js, which acts as the project source of truth for ingredient grams-per-cup values, flour-specific values, and milliliter-to-gram density values. When a displayed conversion value changes, the related page copy and tests should be updated together.
Contact
We welcome questions, corrections, and feedback. If you find an error in any conversion value, or if you want to suggest a new converter tool, please reach out. We read every message.
For general questions about conversion values, please include the specific page URL and the value you are questioning. For partnership or advertising inquiries, please use the primary email address.
Our tools
Kitchen Unit Converter currently offers conversion tools across four practical categories. We add new tools based on user requests and search data. If there is a conversion you need that we do not yet cover, let us know at contact@aigotowork.work.
Why accuracy matters
In cooking, a 10% variation in an ingredient rarely ruins a dish because you can taste and adjust as you go. In baking, the ratios of flour, fat, sugar, liquid, and leavening are closer to a chemical formula. Too much flour makes cookies dry and crumbly. Too little sugar prevents proper browning. Too much butter can make cakes greasy and dense. These failures usually appear only after the pan comes out of the oven.
The most common source of these failures is not a bad recipe. It is inaccurate measurement. A home baker who scoops flour from the bag can add 20-30% more flour than the recipe intended. Across two or three cups, that can become an entire extra cup of flour without the baker realizing it. Accurate conversion tools save time, but more importantly, they save batches.
Privacy and transparency
Kitchen Unit Converter displays advertisements to support the cost of maintaining and developing this site. We use Google AdSense to serve ads. Ads are clearly labeled and do not affect the content or conversion values on any page.
We use standard web analytics, including Google Analytics, to understand which tools are most used, which pages are most helpful, and where the site can improve. We do not collect personally identifiable information beyond what is standard for web analytics.
This site does not currently use affiliate links. Any product recommendations are made solely based on usefulness to readers.
If you find an error, contact us at contact@aigotowork.work. We investigate reported issues and aim to correct verified errors within 5 business days.