How Much Caffeine Is in a Red Bull? All Sizes

You grab a Red Bull for a jolt, but the caffeine content varies by can size. This guide breaks down the exact caffeine for every standard size, compares it to coffee, and explains daily limits and anxiety risks.

Caffeine in 250 ml Red Bull: 80 mg ·
Caffeine in 355 ml Red Bull: 110 mg ·
Caffeine per 100 ml Red Bull: 31.98 mg ·
Caffeine in 500 ml Red Bull: 160 mg ·
Caffeine in 8.4 fl oz Red Bull: 80 mg

Six can sizes, one clear pattern: Red Bull’s caffeine content scales linearly with volume, but the gap between a small can and a large one changes the risk profile entirely.

Data sourced from Red Bull US ingredients page and U.S. Food and Drug Administration.

How much caffeine is in a 250 ml Red Bull?

Official caffeine content per 250 ml can

A standard 250 ml Red Bull can contains exactly 80 mg of caffeine, as stated on the Red Bull US ingredients page. That works out to 31.98 mg per 100 ml. According to Red Bull’s own FAQ page, that’s roughly the same caffeine as a cup of home-brewed coffee.

Caffeine per 100 ml and per fl oz

Per 100 ml, Red Bull delivers 32 mg of caffeine. That means one 8.46 fl oz can comes in at about 9.46 mg per fl oz.

The implication: A single 250 ml Red Bull is a moderate caffeine dose — well within EFSA’s conclusion that single doses up to 200 mg raise no safety concerns for healthy adults (European Food Safety Authority).

How much caffeine is in Red Bull vs coffee?

Caffeine in a standard cup of coffee

The U.S. Food and Drug Administration says an 8-ounce cup of brewed coffee contains about 95 mg of caffeine on average. But that number is a rough midpoint — the Mayo Clinic notes that coffee caffeine can vary wildly depending on brew method, roast, and bean type, ranging from 80 to 200 mg per cup.

Caffeine in 355 ml Red Bull

A 355 ml Red Bull contains 110 mg of caffeine. That puts it in the same ballpark as an average cup of coffee but slightly above the 250 ml version.

Comparison across sizes: a 250 ml Red Bull (80 mg) is about 84% of a standard coffee’s 95 mg. A 500 ml Red Bull (160 mg) is roughly 1.7 times that coffee baseline.

The pattern: A 250 ml Red Bull and a standard coffee are nearly interchangeable in caffeine content — but coffee’s variability means one cup could be significantly stronger or weaker.

How much caffeine is in Red Bull 500ml and other sizes?

Red Bull 500 ml caffeine

Based on the official 32 mg per 100 ml concentration from the Red Bull US ingredients page, a 500 ml can contains about 160 mg of caffeine — twice the 250 ml can.

Red Bull 330 ml and 355 ml caffeine

A 330 ml can delivers roughly 105 mg, while a 355 ml can yields about 110 mg. The 8.4 fl oz (250 ml) version stays at 80 mg. For anyone drinking the larger 12 fl oz can, the caffeine jumps by 38% compared to the standard size.

The catch: Grabbing a 500 ml Red Bull means consuming 160 mg in one can — that’s 40% of the FDA’s entire 400 mg daily limit in a single drink.

Is 200 mg of caffeine high or too high?

Safe daily caffeine limits

The U.S. Food and Drug Administration and Health Canada both state that 400 mg per day is safe for healthy adults. The European Food Safety Authority adds that single doses of up to 200 mg pose no safety concerns.

A 200 mg dose equals two and a half 250 ml Red Bulls or just over two cups of average coffee.

What 200 mg caffeine feels like

Two hundred milligrams is considered moderate — most adults won’t feel jittery at this level, though the Mayo Clinic notes that sensitivity varies. For caffeine-sensitive individuals, 200 mg can trigger mild anxiety or restlessness.

Why this matters: 200 mg is a halfway point — not dangerous for most, but not trivial either. It’s below the EFSA’s concern threshold but well above what someone with caffeine sensitivity should drink in one sitting.

Is 1 Red Bull a day ok? Is 1000 mg of caffeine a lot?

Daily Red Bull consumption safety

One 250 ml Red Bull contains 80 mg of caffeine, which is well within the FDA’s 400 mg daily limit. According to the FDA, up to four 8-ounce cups of coffee (about 400 mg) is generally safe. One Red Bull per day is fine for most healthy adults, though the agency also warns that some people are more sensitive and may experience side effects like increased heart rate or sleep problems.

For pregnant or breastfeeding individuals, Health Canada recommends no more than 300 mg per day.

1000 mg caffeine toxicity

One thousand milligrams of caffeine is 2.5 times the FDA’s recommended daily maximum. That’s equivalent to 12.5 cans of 250 ml Red Bull. At this level, the FDA warns of severe side effects: nervousness, insomnia, rapid heart rate, and in extreme cases, toxicity. EFSA’s conclusions note that habitual caffeine above 400 mg per day raises safety concerns.

The trade-off: One Red Bull a day is fine. Five or more, especially in a short window, crosses into dangerous territory.

Is caffeine bad for anxiety?

Caffeine and anxiety link

The NHS states that caffeine can make anxiety symptoms worse. As a stimulant, it can cause jitteriness, increased heart rate, and disrupted sleep — all of which mimic or amplify anxiety symptoms. The FDA similarly notes that caffeine can cause nervousness in some people.

Red Bull and anxiety symptoms

At 80 mg per 250 ml can, a single Red Bull falls within moderate doses that are usually safe — but for someone prone to anxiety, even that amount could be a trigger. The NHS advises that people with anxiety may want to cut down on caffeine.

What this means: If you have anxiety, even one Red Bull might be too much. The 80–200 mg range is enough to worsen symptoms in sensitive individuals.

How much caffeine is in a Red Bull Iced vanilla berry?

Caffeine content of flavored Red Bull variants

The Red Bull Iced vanilla berry flavor is reported to contain the same 80 mg of caffeine per 250 ml as the original formula. However, the exact recipe isn’t listed on the official Red Bull site, so consumers should verify ingredient labels. Other flavored variants like Sugarfree, Zero, and Yellow Edition also stick to the same 80 mg baseline for the standard 250 ml can.

The catch: Flavored editions look different but pack the same caffeine punch — don’t assume a fruitier taste means less stimulant.

One 250 ml can of Red Bull Energy Drink contains 80 mg of caffeine.

— Red Bull US ingredients page

Red Bull contains 80 mg of caffeine in a 8.46 fl oz can (9.46 mg per fl oz).

— Caffeine Informer

For the caffeine-conscious drinker in the United States, the choice is clear: stick to 250 ml if you want alignment with EFSA’s single-dose safety threshold, or step up to 500 ml only if you’re certain your daily total stays under 400 mg — or accept the jittery trade-off.

Related reading: Do Bananas Have Fiber? Nutrition Facts and Benefits · How Many Calories Should I Burn a Day? Expert Guide

Frequently asked questions