How many carbohydrates in watermelon?

Calories in small watermelons

The calorie content is determined by the weight.

For example, there are:

• Approximately 1355 in 1 watermelon (about 15" long x 7-1/2" diameter)
• Approximately 9 calories per ounce or 28g of watermelon.

For the calories in other fruits, and a calorie fruit chart, which you may use as a daily guide, see the page link, further down this page, listed under Related Questions.