Calories in cantaloupe (rockmelon)

Raw. 34 kcal (142 kJ) per 100 g. Choose a portion below and every figure on the page updates.

Cantaloupe, known as rockmelon in Australia, is one of the lightest fruits by energy: 34 kcal (142 kJ) per 100 g, because it is about 90% water. Nearly all its calories come from natural sugar. Its orange flesh signals beta-carotene, so it is a good source of vitamin A, and it also provides a solid amount of vitamin C and potassium.

Where the energy comes from

Share of total energy contributed by each macronutrient, using the standard 4/4/9 kcal per gram factors:

Things worth knowing

• A cup of cubes (160 g) has about 54 kcal (228 kJ). A medium wedge, one-eighth of a melon, is about 23 kcal (98 kJ), and a whole medium melon about 188 kcal (785 kJ).
• That cup of cubes provides about 59 mg of vitamin C and 270 µg of vitamin A, roughly 65% and 30% of the Daily Values.
• Honeydew has almost the same energy (36 kcal per 100 g) but only about half the vitamin C and very little vitamin A, because its pale flesh lacks beta-carotene.
• The netted rind can carry bacteria from the soil, so it is worth washing the outside before cutting; cut melon should be kept in the fridge.

Converting these figures

One 1 cup, cubes of cantaloupe is 54 kcal, which is 228 kJ. To convert any other figure, divide kilojoules by 4.184 for calories, or use the converter on the home page.

It takes 703 g of cantaloupe to reach 1,000 kJ (239 kcal). See how that compares with other foods on the 1000 kJ to calories page.