How Many Calories in Coffee? Nutrition Facts & Macros
A cup of black coffee (237 ml) has 2 calories
Protein 0.3g · Carbs 0g · Fat 0g
Black coffee is one of the world's most consumed beverages — and one of the lowest in calories. Whether you're a daily coffee drinker, tracking macros, or wondering how milk and sugar change the calorie count, knowing the exact nutrition facts helps. Here's everything you need to know about coffee calories and macros, based on USDA data. Brewed black coffee is about 99% water.
4 kJ · per 100g · Water: 99.39 g
Calorie Calculator: Coffee (Black)
237 g Coffee (Black) contains 2 kcal
Calories by Portion Size
| Portion | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 1 cup brewed (237ml) | 2 kcal | 0.3g | 0g | 0g |
| 1 espresso shot (30ml) | 0 kcal | 0g | 0g | 0g |
| 100 grams | 1 kcal | 0.1g | 0g | 0g |
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| Coffee (Black) | per 100g |
|---|---|
| Calories | 1 kcal |
| Protein | 0.12 g |
| Fat | 0.02 g |
| Carbs | 0 g |
| Fiber | 0 g |
| Sugar | 0 g |
| Sodium | 2 mg |
| Potassium | 49 mg |
| Magnesium | 3 mg |
| Phosphorus | 3 mg |
| Vitamin C | 0 mg |
| Vitamin B6 | 0.001 mg |
| Folate | 2 mcg |
| Water | 99.39 g |
Source: USDA FoodData Central (FDC ID: 171890) · Data verified April 2026
Variations
Espresso
2 kcal per 30ml shot. More concentrated caffeine (63mg per shot vs 95mg per cup of brewed). Bolder flavor, served in small portions. Nutritionally nearly identical to brewed — both essentially zero calories.
Latte (with whole milk)
135 kcal per cup (240ml milk + espresso). Protein 6.8g, carbs 9.6g, fat 6.5g. The milk adds most of the calories — the coffee itself contributes almost nothing. Use skim milk (~75 kcal) or oat milk (~90 kcal) for fewer calories.
Ristretto
1 kcal per 15ml shot. Half the water of espresso but same amount of coffee grounds — the most concentrated coffee. About 63mg caffeine in just 15ml. Intense, sweet, less bitter than espresso. Zero calories in practice.
Lungo
2 kcal per 60ml. Double the water of espresso — longer extraction, milder flavor, slightly more bitter. About 80mg caffeine per 60ml. Between espresso and brewed coffee in strength. Essentially zero calories.
Frequently Asked Questions
How many calories are in black coffee?
A cup of brewed black coffee (237 ml) contains approximately 2 calories. Per 100g, black coffee has just 1 calorie. That's essentially zero — coffee is one of the few beverages with virtually no caloric impact. The tiny calories come from trace amounts of protein and oils.
Does adding milk change coffee calories?
Dramatically. Black coffee: 2 kcal per cup. With a splash of whole milk (30ml): ~20 kcal. Latte (240ml milk): ~135 kcal. With cream (30ml): ~52 kcal. With sugar (1 tsp): +16 kcal. A flavored coffee shop drink can reach 300-500 kcal. Black coffee is the only truly low-calorie option.
Is coffee good for weight loss?
Black coffee can support weight loss. At 2 calories per cup, it doesn't add meaningful calories. Caffeine (95mg per cup) slightly boosts metabolism and can suppress appetite short-term. Studies show moderate coffee consumption (3-4 cups daily) may support fat oxidation. Just avoid adding sugar, cream, or flavored syrups.
How much caffeine is in coffee?
A cup of brewed coffee (237ml) contains about 95mg of caffeine. Espresso has about 63mg per shot (30ml) — more concentrated but less total. Instant coffee has about 62mg per cup. The FDA recommends no more than 400mg caffeine per day (about 4 cups of brewed coffee).
Coffee vs espresso — what's the difference?
Brewed coffee: 1 kcal per 100ml, ~95mg caffeine per 237ml cup. Espresso: 2 kcal per 30ml shot, ~63mg caffeine. Per volume, espresso is more concentrated in both caffeine and flavor. A cup of brewed coffee has more total caffeine than one espresso shot. Nutritionally, both are essentially zero-calorie.
How many cups of coffee can I drink per day?
Most health authorities recommend up to 3-4 cups (about 400mg caffeine) per day for healthy adults. This is associated with potential health benefits including reduced risk of type 2 diabetes and liver disease. Pregnant women should limit to about 200mg (2 cups). The key is drinking it black or with minimal additions.
Compare with Similar Foods
| Portion | kcal | Protein | Carbs | Fat |
|---|---|---|---|---|
| Coffee (Black) | 1 | 0.12g | 0g | 0.02g |
| Milk (Whole) | 61 | 3.15g | 4.8g | 3.25g |
| Honey | 304 | 0.3g | 82.4g | 0g |
| Tea | 1 | 0g | 0.3g | 0g |
| Orange Juice | 45 | 0.7g | 10.4g | 0.2g |
per 100g
Per 100g, black coffee has just 1 kcal — essentially zero calories. Compare that to orange juice (45 kcal), milk (61 kcal), or a latte (~56 kcal per 100ml). Coffee is one of the very few beverages that adds virtually no calories to your diet.
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