How Many Calories Are in a Can of Coke? | Calorie Count

You’ve probably seen 140 on the side of a Coke can and wondered how that fits into your day. It sounds like a small number, but those calories come entirely from added sugar — no protein, no fat, no fiber to slow things down.

This article covers the calorie count for a can of Coke, how it compares to other sizes and diet versions, and what the research says about sugary drinks and health.

Calories in a Standard Can of Coke

The official Coca-Cola website lists 140 calories for a 12-ounce (355 ml) can of Coca-Cola Classic. MedlinePlus gives a slightly higher figure of 155 calories for the same size — the difference likely comes down to rounding or formulation updates.

All of those calories come from the 39 grams of sugar in each can. That’s roughly 10 teaspoons of sugar, all added during production. There are zero grams of fat and zero grams of protein.

Other common sizes have different numbers. A 330 ml can (about 11.2 ounces) contains 139 calories. A 500 ml bottle comes in at 210 calories, and a 600 ml bottle has 252 calories. A large 22-ounce Coke packs 270 calories and 72 grams of sugar.

Why the Exact Number Matters

It’s easy to think 140 calories is barely a snack — a handful of almonds has more. But liquid calories don’t signal fullness the way solid food does. You can drink a can of Coke and still feel hungry, so those calories stack on top of your meal.

Here’s how the numbers add up across common sizes:

• Mini can (7.5 oz): About 90 calories and 22 grams of sugar — a smaller option if you want just a taste.
• 12 oz can (standard): 140–155 calories and 39 grams of sugar — the most common serving.
• 20 oz bottle: Roughly 240 calories and 65 grams of sugar — often sold at convenience stores.
• 500 ml bottle: 210 calories and 54 grams of sugar — common outside the U.S.
• 22 oz fountain cup: 270 calories and 72 grams of sugar — easily over a day’s worth of added sugar.

Comparing Regular Coke to Zero-Calorie Options

Diet Coke and Coca-Cola Zero Sugar both contain zero calories per 12-ounce can, as Diet Coke zero calories page from MedlinePlus confirms. These drinks use artificial sweeteners like aspartame and acesulfame K to deliver sweetness without sugar.

For people who want to cut calories but still enjoy the taste, switching to a zero-calorie version can save 140+ calories per can. However, research on long-term health effects of artificial sweeteners is mixed. Harvard’s Nutrition Source notes that replacing sugary drinks with artificially sweetened ones did not appear to lower diabetes risk in some studies.

Size	Calories	Sugar (g)
7.5 oz mini can	90	22
12 oz can (standard)	140–155	39
330 ml can (11.2 oz)	139	35
500 ml bottle	210	54
600 ml bottle	252	63
22 oz fountain cup	270	72

These numbers make it clear that portion size matters just as much as the choice between regular and diet. A 22-ounce Coke has nearly double the calories of a standard can.

Health Considerations Beyond the Calorie Count

The calories in a can of Coke don’t tell the whole story. The 39 grams of sugar in a 12-ounce can already exceed the World Health Organization’s recommended daily maximum of about 24 grams (6 teaspoons) for an adult. Drinking one can puts you well over that limit.

Research points to several health effects associated with regular consumption of sugary drinks:

1. Weight gain: Studies show a clear association between soft drink intake and increased energy intake and body weight. The liquid calories don’t trigger the same satiety signals as solid food.
2. Type 2 diabetes risk: Some research suggests drinking one or two colas a day may increase diabetes risk by more than 20%, though this is based on observational data.
3. Tooth decay: The combination of sugar and acidity (phosphoric and citric acids) can erode enamel and promote cavities, especially with frequent sipping.
4. Nutrient displacement: People who drink more soda tend to consume less milk, calcium, and other beneficial nutrients, as documented in peer-reviewed research.
5. Chronic disease risk: The CDC reports that sugar-sweetened beverages are associated with obesity, heart disease, non-alcoholic fatty liver disease, and gout.

Research on Sugary Drinks and Long-Term Health

The health evidence on regular soda consumption is robust and comes from multiple authoritative sources. Per the CDC SSB health risks page, frequently drinking sugar-sweetened beverages is associated with weight gain, obesity, type 2 diabetes, heart disease, non-alcoholic fatty liver disease, and tooth decay. The CDC recommends limiting these drinks to reduce chronic disease risk.

UCLA Health reports that sugary beverages are linked to adverse health effects including poor blood sugar control and increased liver fat. The mechanisms are well understood: the high sugar load spikes blood glucose and insulin, and any excess energy from liquid calories is stored as fat.

For people looking to reduce risk, Harvard’s Nutrition Source recommends replacing sugary drinks with water, unsweetened tea, or coffee. These alternatives provide hydration without the added sugar and calorie load.

Drink Option	Calories (12 oz)	Added Sugar
Coca-Cola Classic	140–155	39 g
Diet Coke / Coke Zero	0	0 g
Water (still or sparkling)	0	0 g
Unsweetened iced tea	~2	0 g

The Bottom Line

A standard 12-ounce can of Coke contains about 140 calories and 39 grams of sugar — close to the WHO’s daily added sugar limit in a single serving. Choosing zero-calorie versions or water can cut those calories, but the overall research still encourages limiting sugary drink intake for long-term health.

If you’re tracking calories for weight loss or managing prediabetes, your doctor or a registered dietitian can help you decide where a can of Coke fits — or doesn’t — in your personal nutrition plan.