Broccoli Head to Cups and Shopping Calculator
There is no single reliable cup count for every head of broccoli. Enter the weight of your heads and the proportion you plan to use, then convert the usable broccoli into reference raw chopped cups. You can also work backward from a cup target to a whole-head shopping count.
Cup estimates use the raw chopped reference. Whole-head weight and the usable share after trimming come from your inputs. Food reference: USDA SR Legacy, 2018 release.
Plan from whole heads or target cups
Whole heads vary. Replace the example head weight and usable percentage with your own measurements. Results use raw chopped broccoli at 91 g per cup.
Edible prepared weight ÷ whole weight × 100. The 500 g head and 70% share are examples, not standard values.
Estimated raw chopped broccoli
3.85 US cups
- Whole weight
- 500 g
- Edible broccoli available
- 350 g
- Trimmings from planned heads
- 150 g
Edible grams = heads × whole-head grams × usable percentage. Divide by 91 for raw chopped cups.
70% edible share is your input, not a standard trimming yield. Keeping peeled stalks changes the usable weight.
Plan your group servings to work out the prepared amount before shopping.
Calculations run in your browser. Your entered amounts are not sent to a server.
What is a head, and what will you actually eat?
A head sold with a long stalk is a different purchase from a tightly trimmed crown. Both may contain useful food, but the parts included in a recipe can differ. Decide whether you are using florets alone, peeled stalks as well, or nearly all the sound edible vegetable.
The usable percentage belongs to that choice. It is not a quality score for the broccoli, and it is not a fixed percentage taken from every head. A cook saving peeled stalks for slaw will have a different useful yield from someone weighing only the florets for a salad.
Find a useful whole-head weight
Weigh the broccoli as bought, without bags, bands or other packaging. If you have several heads, weigh the lot and divide by the number of heads to get an average for that purchase. Keep the units consistent when entering the weight.
Do not treat a word such as medium or large as an exact scale reading. Shops, varieties and trimming styles differ. The calculator lets you enter a measured head weight so that the shopping estimate is tied to the broccoli you are actually choosing.
Calculate the usable percentage from your own trimming
After preparing a head, weigh the parts you intend to use. Divide that usable weight by the original food weight, then multiply by 100. Keep water and containers out of both measurements. If the broccoli is still wet from washing, let it drain before comparing weights.
For example, a head weighing 500 g before trimming and 350 g afterward gives 350 divided by 500, or 70% usable weight. These numbers are an arithmetic example, not a claim that broccoli normally weighs 500 g or always yields 70%.
Turn weighed heads into cups
In heads-to-cups mode, the tool multiplies the number of heads by their average whole weight. It then applies the usable percentage. The result is a usable raw weight, which can be converted to reference cups of chopped raw broccoli using 91 g per cup.
Suppose you enter two heads, 500 g per head and 70% usable weight. The purchase weighs 1,000 g and provides 700 g usable broccoli under those assumptions. Dividing 700 by 91 gives approximately 7.69 reference cups. The remaining 300 g is the amount excluded from this particular calculation.
| Example input or result | Amount |
|---|---|
| Whole purchase | 2 × 500 g = 1,000 g |
| Usable broccoli | 1,000 g × 70% = 700 g |
| Reference raw chopped cups | 700 g ÷ 91 g = about 7.69 cups |
Work backward from a recipe or cup target
Use cups-to-heads mode when the recipe calls for a quantity and you need a shopping estimate. The tool converts the cup target to usable grams, then divides by the expected usable weight per head. It shows the exact mathematical head count and a whole-head count rounded upward.
Using the same example assumptions, six reference cups require 546 g usable broccoli. A 500 g head at 70% usable yield provides 350 g. The exact requirement is 1.56 heads, so a whole-head purchase would be two. You can use the expected remainder for another dish.
Why does the shopping result round up?
A result of 1.56 heads is useful for checking the arithmetic, but a shop may sell only complete heads. Rounding up protects the stated cup target under the inputs you chose. It does not guarantee that the next two heads on a shelf will weigh the same as your reference head.
When broccoli is sold loose by weight, the usable-gram result may be more helpful than a head count. Compare the actual available heads, or choose a package with a stated net weight. If a recipe already gives trimmed grams, use that weight target directly rather than converting it into cups first.
Keep cooking change out of the trimming calculation
This tool describes raw usable broccoli. Trimming loss is not cooking loss. A head that provides 350 g after trimming will not necessarily weigh 350 g after roasting, boiling or steaming, and this tool does not supply a universal cooked yield.
If your target is a cooked portion, use your own measured raw-to-cooked batch ratio in the cooked portion calculator. Do not label a raw chopped cup estimate as a cup of cooked broccoli. The cup converter keeps the raw and cooked reference weights visible for that reason.
Use the estimate without wasting the rest
Set aside sound peeled stalks for slaw, soup or another meal when they are not part of the main recipe. Keeping them separate lets you calculate the floret dish accurately without treating useful stalks as unavoidable waste. Discard unsuitable parts rather than adding them merely to reach a target weight.
For a gathering, start with the serving planner to establish the usable food target. Then use this shopping tool if you are buying whole heads. That order keeps the guest count, portion choice and trimming assumption visible instead of hiding all three inside a vague number of heads.
Frequently asked questions
Can you tell me how many cups are in one average head?
The useful answer depends on head weight, trimming and cut size. Weigh one representative head if possible, then enter your usable percentage. The tool deliberately does not treat an unmeasured average as a universal food quantity.
Is everything outside the usable percentage waste?
Not necessarily. It means excluded from this calculation. You may use sound peeled stalks in another dish. If those stalks belong in the dish you are planning, include their weight in the usable amount instead.
Can I use a bag of prepared florets?
A bag with a clear net weight usually does not need a head-weight estimate. Use its usable weight in the cups-to-grams converter, checking whether the product is fresh, frozen or already cooked.
What if my heads are very different sizes?
Weigh the whole purchase and use its average per head for a batch estimate. For shopping one more head, compare its actual weight rather than assuming the earlier average applies to every individual head.
Why do the whole heads to buy provide more than my target cups?
The shopping count rounds upward to complete heads, so the estimated usable amount can exceed the target. Compare the target usable grams with the rounded purchase result. Set extra prepared broccoli aside, or scale the recipe deliberately rather than adding everything automatically.
What if I enter a usable share of zero?
A zero usable share cannot supply any broccoli for a cup target, so the calculator asks for a value above zero. If none of the head is suitable to eat, choose another purchase. Enter a measured usable share instead of an arbitrary positive number just to obtain a result.
Sources and reference data
- USDA FoodData Central: food data documentation
- USDA FoodData Central: downloadable SR Legacy records
- USDA FoodData Central: Broccoli, raw (FDC 170379)
Download the food reference table with exact USDA food IDs and per-100 g nutrient values.