What is the calorie content of a hard boiled egg?

A large hard-boiled egg contains approximately 78 calories.

Here's a breakdown of the calories per size:

* Small egg: 55 calories

* Medium egg: 65 calories

* Large egg: 78 calories

* Extra large egg: 90 calories

* Jumbo egg: 100 calories

Keep in mind that these are estimates, and the exact calorie content can vary slightly depending on the size and weight of the egg.