In this article, I want to show you everything you need to know on how much blueberries weigh in a variety of amounts and weight types so you can find the correct information you’re looking for.
As well as weights, I’ve also included calorie information for various serving sizes, to help you work out calories specific to your portion.
Read on to find out more about blueberry weights and calories in charts and photos. To quickly find the information you’re looking for you might find it easier to click on the relevant link in the table below:
How Much Does a Blueberry Weigh?
As a product of nature, blueberries can vary in size and weight depending on the variety and the conditions they were grown in. Commercial blueberries are grown for both high yield and good-sized juicy fruit, but even so, the sizes which arrive in a shop-bought punnet will all vary by a gram or two.
I did the research which involved weighing a number of fresh blueberries on precision scales and I found that the average small blueberry weighs around 1.5g and a larger blueberry weighs around 2.5-3g each.
When looking at all of the averages it’s safe to say that the weight of an average medium-sized blueberry is around 2g when rounded to the nearest whole number.
The image below shows the size and weight difference between a smaller and larger blueberry, so you can get an idea of how this looks visually.
How Much Does a Cup of Blueberries Weigh?
I measured out a level US cup of blueberries of various sizes and the weight came to 153g (5.4oz).
Obviously, an individual blueberry weight varies and bigger, juicier berries will weigh more, so the cup weight will vary.
A small punnet of supermarket blueberries usually weighs 150g, so you can use this as a guide that a small punnet is equal to a cup.
Useful Blueberry Weight Conversions
Below are some more blueberry weight conversions for popular blueberry weight-related questions which you might be searching for.
These measurements are based on an assumption that an average blueberry weighs 2g per berry.
How Many Blueberries are in an Ounce?
There are just over 28 (28.3) grams in an ounce, so based on an average blueberry weight of 2g, there are around 14 average-sized berries in an ounce of blueberries.
If you’re looking for the number of blueberries in multiple ounces, the table below can help you to quickly work this out:
| Blueberry serving size in Ounces | Amount of average-sized (2g) blueberries |
| 1oz | 14 |
| 2oz | 29 |
| 3oz | 43 |
| 4oz | 57 |
| 5oz | 71 |
| 6oz | 85 |
How Many Blueberries are in 100g?
Based on an average-sized blueberry of 2g per berry, there are around 50 blueberries in 100g of blueberries.
If you need more information on how many blueberries are in multiple gram servings, the table below can help you find the information you’re looking for:
| Blueberry serving size in grams | Amount of average-sized (2g) blueberries |
| 25g | 12 |
| 50g | 25 |
| 100g | 50 |
| 150g | 75 |
| 200g | 100 |
| 250g | 125 |
| 300g | 150 |
| 400g | 200 |
| 500g | 250 |
How Many Blueberries are in a Serving or Portion?
Government (NHS) guidance states that one serving or portion size of blueberries is equal to 2 handfuls or 4 heaped tablespoons of berries.
Obviously, blueberries do vary in size, but based on an average-sized blueberry a tablespoon is around 6 to 8 berries, so a portion is around 24 to 32 blueberries.
How Many Calories are in Blueberries
Because not everyone’s serving size is the same and different methods of weighing vary, I’ve put together a chart showing blueberry calories for various portion sizes and weights to help you find what you’re looking for.
I’ve based this calorie information from Google Calorie Counter from a reputable source being 57g per 100g of blueberries.
| Serving size of fresh blueberries | Calories in kcal |
| 1 tablespoon | 5 |
| 2 tablespoons | 10 |
| 1 portion (2 handfuls/4tablespoons) | 21 |
| 10 blueberries (average 2g each) | 11 |
| 1 cup | 84 |
| 25g | 14 |
| 50g | 29 |
| 100g | 57 |
| 150g | 86 |
| 1oz | 16 |
| 2oz | 32 |
| 3oz | 48 |
| 4oz | 65 |
More Blueberry Weight FAQ’s
The average weight of a single blueberry is around 2g and based on this weight there is one calorie in an individual berry.
One handful of blueberries is equal to around two tablespoons which contain 10 calories in total.
Equipment and Information Used for This Article
I used precision scales that weigh to 0.01 of a gram which is regularly calibrated with a 100g weight. For more information see my recommended weighing scales here.
To make sure the information in this article is accurate, I researched and cross-referenced various sources (as well as original research) to obtain the correct weights and calories.
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