One US cup of whole wheat flour weighs about 120 grams. That single number is what makes this conversion possible, and it is why baking by weight is more reliable than baking by volume.
Bran makes it bulkier per gram than white flour. Volume measures depend on how the ingredient is packed into the cup, while a gram is a gram no matter how you scoop it.
Enter your amount above to convert it. The table below covers the fractions recipes actually call for, including thirds and eighths of a cup.
Below the calculator sits the whole Wheat Flour cup to gram table: 11 rows — 0.125 cups at one end, 4 cups at the other — which is usually faster than entering a value you have seen before. The page opens with cups of whole wheat flour already set to 1 cups, so there is a finished result on screen before anything is typed. Every symbol in the formula — 3 of them (cups, 120, grams) — is defined above rather than left as notation to decode. The pages people most often open next are Whole Wheat Flour: Grams to Cups Converter and Cake Flour: Grams to Cups Converter.
The formula
cups- Volume of whole wheat flour in US cups
120- Grams in one US cup of whole wheat flour
grams- Weight of the ingredient
How it works, step by step
- Enter your quantity of whole wheat flour.
- The tool applies the density of 120 g per US cup.
- The converted figure appears immediately, along with an ounce equivalent.
- Use the table for common recipe fractions without typing anything.
Worked examples
A standard single batch
A recipe calling for 2 cups of whole wheat flour needs 240 g. Weighing it removes the guesswork of how firmly to pack the cup.
Scaling a recipe by half
Half a cup of whole wheat flour is 60 g — easier to hit accurately on a scale than to eyeball in a measuring cup.
Checking the 0.75 cups row
The reference table lists Cups = 0.75 cups, giving Grams: 90 g, Ounces: 3.2 oz. Entering that above should reproduce the same figures — if it does not, the input is being read differently to the way the table assumes.
Frequently asked questions
How many grams are in a cup of whole wheat flour?
About 120 grams for a US cup. Bran makes it bulkier per gram than white flour.
How many grams are in a tablespoon of whole wheat flour?
A US tablespoon is one sixteenth of a cup, so about 7.5 grams.
Why do different sources give different gram values?
Because volume measuring is genuinely imprecise. How you fill the cup changes the weight, sometimes by 20% or more for flours and powders. Published values assume a specific method — usually spooned and levelled — and this page uses that convention.
Should I bake by weight or volume?
By weight whenever a scale is available. It is more repeatable, faster with fewer dishes, and it is the reason professional recipes are written in grams.
How precise is the weight in grams?
Internally the maths runs at full double precision and the display keeps the significant figures that carry information, dropping the digits that are only rounding noise. Rounding happens at the display step alone, so nothing accumulates error as you change the input. The figure is reported in g.
What formula does the Whole Wheat Flour: Cups to Grams Converter use?
It computes grams = cups × 120, where cups is volume of whole wheat flour in US cups; 120 is grams in one US cup of whole wheat flour; grams is weight of the ingredient. The same expression is printed on the page above the inputs, so the result can be reproduced by hand or in a spreadsheet.
Whole Wheat Flour conversion table
| Cups | Grams | Ounces |
|---|---|---|
| 0.125 cups | 15 g | 0.5 oz |
| 0.25 cups | 30 g | 1.1 oz |
| 0.333 cups | 40 g | 1.4 oz |
| 0.5 cups | 60 g | 2.1 oz |
| 0.667 cups | 80 g | 2.8 oz |
| 0.75 cups | 90 g | 3.2 oz |
| 1 cup | 120 g | 4.2 oz |
| 1.5 cups | 180 g | 6.3 oz |
| 2 cups | 240 g | 8.5 oz |
| 3 cups | 360 g | 12.7 oz |
| 4 cups | 480 g | 16.9 oz |
Based on 1 US cup of whole wheat flour = 120 g. Bran makes it bulkier per gram than white flour.