About

Search for how many grams are in a cup of flour and you will get a confident number from every result on the page. Several of those numbers will disagree with each other. None of the pages will tell you why, and most will not say where their figure came from.

That is the whole reason this site exists. Every figure here traces to a named, checkable source: a USDA FoodData Central record with its ID, a published culinary reference with the specific chart named, and an independent third source that is not another baking chart. Where those sources agree, the figure is published along with all of them. Where they disagree by more than the tolerance for that kind of ingredient, the entry publishes the range they cover rather than splitting the difference — an averaged number is one that no source supports.

How much disagreement counts as too much depends on what is being measured. Two measurements of a litre of oil should land within a fraction of a percent of each other. Two cups of milled flour genuinely will not, because the powder clumps and traps air and there is no single right answer to find. Holding both to the same threshold would mean publishing confidently on the easy ingredients and staying silent on exactly the ones people came here to look up.

So flour gets a range, and the range is the honest answer. The three best sources measure three different filling methods; the page shows all three, names the method behind each, and declines only to pretend one of them is the number. The methodology page walks through every rule.

Who makes it

ExactCups is made by MarVikIT. What we are good at is the unglamorous part: chasing a figure back to whoever first measured it, working out whether two sources are really independent or just copying each other, and writing down what we found either way. Most of the work on this site is reading standards documents and food databases so that nobody else has to.

The code for ExactCups lives at MarVikIT on GitHub.

MarVikIT also makes SwapGenie, an Android app that scans a grocery barcode and checks the ingredients against what you avoid, and Big Bands, a block merge puzzle game. SwapGenie is the same instinct from the other end of the problem: this site is about how much is in the cup, that one is about what is in the packet.

There are no ads here and there never will be, no affiliate links, and no account needed to read anything. Nothing is sold to anyone.

Suggestions are welcome

If a figure here is wrong, if you know a source that would settle one of the open entries, or if there is an ingredient you keep having to look up and cannot find a straight answer for, tell me. A source I have not seen is worth more to this project than another page is. The sourcing rules and the full dataset are published on the methodology page and the data page so you can check my working.

Contact

MarVikIT, Jevrejska, 21000 Novi Sad, Serbia

Contact: Nikola Dimovski