Celsius caffeine content by line, from the brand's own page

A standard 12 oz Celsius has 200 mg of caffeine per can. Celsius Essentials has 270 mg per can, the On-The-Go powder packets have 200 mg each, and the Celsius Hydration powders have none.

All four numbers come from the same place, Celsius's Essential Facts page, so there is no guessing on this one. What the page does not do is break it out by flavor, and it does not need to: caffeine is set by the line, not the flavor, and the zero-sugar and regular versions of a line carry the same amount.

Caffeine by Celsius line

From Celsius Essential Facts. The same page says the brand recommends no more than two 12 oz cans (or two servings) a day, and one per day for Essentials.

How strong that is per ounce

Celsius packs 200 mg into 12 oz, which is about 16.7 mg per ounce. Red Bull, by its own figures, is 80 mg per 8.4 oz can and 114 mg for a 12 oz can, about 9.5 mg per ounce. Brewed coffee on the USDA rate is 40 mg per 100 g, roughly 12 mg per ounce. So a single Celsius has the caffeine of a 12 oz Red Bull plus most of a second one, or of about 17 oz of drip coffee, in a can you can finish in a few minutes. That is the thing to know about Celsius: it drinks like a soft drink and doses like a large coffee.

Essentials is a different tier

Essentials at 270 mg is the strongest thing Celsius sells and the reason the company prints a one-per-day recommendation for it. Two Essentials in a day is 540 mg. Two standard cans, which is the brand's stated daily ceiling for the regular line, is 400 mg on its own before any coffee. If you drink coffee in the morning and reach for a Celsius in the afternoon, a single standard can plus a grande Pike Place (310 mg) is already around 510 mg.

What the numbers do not include

Celsius publishes one caffeine figure per can and says that caffeine is sourced in part from guarana extract, so the guarana on the label is part of the 200 mg, not an extra dose on top of it. The Hydration powders are the only caffeine-free line; everything Celsius sells in a can has caffeine.

For context, the FDA cites 400 mg of caffeine a day as an amount not generally associated with negative effects in healthy adults. That is information, not advice. How caffeine affects you depends on your own tolerance and health.

Compare it with Alani Nu, see Monster's caffeine content, or look up other cans in the caffeine database.

FAQ

How much caffeine is in a regular Celsius?

200 mg per 12 oz can, per the brand's Essential Facts page. The On-The-Go powder packets are also 200 mg.

What is the strongest Celsius?

Celsius Essentials at 270 mg per can. The brand recommends no more than one Essentials a day.

Does sugar-free Celsius have less caffeine?

No. Caffeine is set by the product line, not the flavor or sweetener, so regular and zero-sugar versions of a line match.

Sources

• Celsius, Essential Facts
• Red Bull, how much caffeine is in a can of Red Bull Energy Drink?
• Caffeine Informer, the complete guide to Starbucks caffeine
• USDA FoodData Central, SR Legacy 171890, coffee, brewed, prepared with tap water (40 mg caffeine per 100 g)
• FDA, Spilling the Beans: How Much Caffeine is Too Much?