Author: Dean Rouseberg
Time for reading: ~0
minutes
Last Updated:
February 19, 2026
Learn more information about calories in roma tomato. In this article we'll discuss calories in roma tomato.
"Tomatoes are low in calories, (about 25 calories per one medium-size tomato) yet filled with nutrition," said Heather Mangieri, a Pittsburgh-based registered dietitian and nutritionist, health author and spokesperson for the Academy of Nutrition and Dietetics.
Here are the nutrients in a small (100-gram) raw tomato ( 1 ): Calories: 18. Water: 95%