Half an avocado contains approximately 160 calories. This is based on a typical serving size of about 100 grams, which corresponds roughly to half of a medium avocado

. Some sources note a slightly lower calorie count around 130-150 calories for half an avocado, depending on the size and variety, but 160 calories is a widely accepted average

. The calories in half an avocado mainly come from healthy fats, particularly monounsaturated fats, which make up about 75-76% of the fat content. It also provides fiber, vitamins (like vitamin K and folate), and minerals such as potassium

. In summary:

• Half an avocado (about 100g) = ~160 calories
• Mostly from healthy fats (monounsaturated)
• Contains fiber, vitamins, and minerals

This makes avocado a nutrient-dense food that is calorie-rich compared to many other fruits but offers beneficial fats and nutrients.