Calories in rockmelon
Rockmelon has 34 kcal (142 kJ) per 100 g.
Updated 21 October 2026. Sources named on the page.
Key factCalories in rockmelon is 34 kcal per 100 g (142 kJ per 100 g).
- Rockmelon per 100 g and per serve
- Wedge, cup and whole melon
- Sugar, fibre and potassium
- Where the numbers come from
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Calories in rockmelon, per 100 g and per serve
Per 100 g of: Melons, cantaloupe, raw.
Per 100 g
| Per 100 g | kcal | kJ | Protein | Fat | Carbs |
|---|---|---|---|---|---|
| rockmelon | 34 | 142 | 0.8 g | 0.2 g | 8.2 g |
rockmelon next to similar foods, per 100 g
| Food | kcal | kJ | Protein | Fat |
|---|---|---|---|---|
| Watermelon | 30 | 126 | 0.6 g | 0.2 g |
| Mango | 60 | 251 | 0.8 g | 0.4 g |
| Orange | 47 | 197 | 0.9 g | 0.1 g |
| Pineapple | 50 | 209 | 0.5 g | 0.1 g |
Common serves
| Serve | Weight | kcal | kJ | Protein | Fat |
|---|---|---|---|---|---|
| A large wedge | 102 g | 35 kcal | 145 kJ | 0.9 g | 0.2 g |
| A cup of cubes | 160 g | 54 kcal | 228 kJ | 1.3 g | 0.3 g |
| A cup of balls | 177 g | 60 kcal | 252 kJ | 1.5 g | 0.3 g |
| A whole large melon, flesh only | 814 g | 277 kcal | 1,158 kJ | 6.8 g | 1.5 g |
Sources: USDA FoodData Central SR Legacy, April 2018, fdc 169092
Values for rockmelon vary by brand and how it is cooked. Check the pack. General information, not medical advice.
A light fruit
Rockmelon is mostly water, so a generous bowl is a small number of calories. The comparison table shows how it sits beside other common fruit.
Weigh the flesh, not the melon
The whole-melon row is for the flesh only. The skin and seeds are not food, so a melon of any size weighs more on the scale than it does on the plate.

Rockmelon is cantaloupe
The figures come from the USDA entry for cantaloupe, which is the same fruit under its other name.
Questions
How many calories are in a cup of rockmelon?
A cup of cubes, about 160 g, is roughly 54 kcal.
How many calories are in a wedge of rockmelon?
A large wedge of about 102 g is roughly 35 kcal.
Where do the rockmelon numbers come from?
From the USDA FoodData Central SR Legacy table (April 2018), per 100 g, the same table the Daily Journal food planner uses. Packs and brands differ, so use the label where there is one.
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