The amount of calories per olive depends on how big the olives are and what their oil content is. The large black canned olives are actually quite low in oil - sometimes only 7%, which is why they are table olives and are not used generally to make oil. Some smaller olives used primarily for oil making can have up to 35% oil content. Olives can range from 1 to 14 grams in weight.
There is about 1 tablespoon of olive oil (and about 120 calories) in:
- 20 medium Mission olives that have an oil content of 20%
- 40 small ripe black olives
- 20 jumbo ripe black olives
- 7 super colossal ripe black olives.