how many calories in black coffee
An average cup of black coffee has about 2 calories per 8 oz (240 ml), so it’s essentially a very low-calorie drink as long as you don’t add sugar, milk, or cream.
Quick Scoop: Calories in Black Coffee
- A typical 8 oz (240 ml) cup of black coffee: about 2 calories.
- Per 100 ml, black coffee is roughly 2 calories.
- Espresso is also very low, around 1–2 calories per ounce or per 100 ml, depending on how it’s measured.
- Decaf black coffee is similar or even closer to 0 calories.
So when people say “black coffee is basically zero calories,” they’re rounding down because the amount is so tiny it usually doesn’t affect daily totals.
Why There Are Any Calories at All
Even plain black coffee has trace amounts of:
- Tiny bits of protein and oils from the coffee beans.
- A few milligrams of minerals like sodium.
These traces are what give you that ~2-calorie figure, but nutritionally it’s still considered a very low-calorie drink.
When Coffee Stops Being “Low-Calorie”
The calorie count changes fast when you add things:
- Milk (whole, semi-skimmed, plant-based) adds noticeable calories per 100 ml.
- Sugar, syrups, whipped cream, and flavored creamers can push a cup from a few calories up into the hundreds.
Many popular coffee-shop drinks (lattes, mochas, flavored iced coffees) are closer to a dessert than to plain black coffee in calorie terms.
Mini “Forum-Style” Take
“Do I really need to log black coffee in my calorie tracker?”
Most calorie-counters either log black coffee as 0 or ignore it because ~2 calories per cup is negligible for most goals. If you drink very large amounts (multiple big mugs a day) and want ultra-precise tracking, you can log it as 2 calories per 8 oz and still be quite accurate.
TL;DR: Plain black coffee is about 2 calories per 8 oz cup and is effectively “zero” for most diet and fasting purposes, as long as you don’t add milk, sugar, or syrups.
Information gathered from public forums or data available on the internet and portrayed here.