Whether you have a Rockstar Thermo at home or you are trying to track one down, one thing you’ll want to know about is how much caffeine each can has. The answer is 300 mg of caffeine in a 16-ounce can, but that only tells you part of the story.
We’ll break down how that compares to other drinks, what Rockstar Thermo is, and some other unique facts about the drink for you here.
Caffeine Content
One area that Rockstar Thermo isn’t lacking is the overall caffeine content. With 300 mg of caffeine in each can, it has one of the highest total caffeine contents of any energy drink. This 300 mg of caffeine is per 16-ounce can, meaning it has 18.75 mg of caffeine per ounce of drink.
But while Rockstar Thermo has 300 mg of caffeine per can, it has 0 grams of sugar regardless of whether you get the Tropical Blast or Neon Blast flavor.
Caffeine Content in Comparable Energy Drinks
Rockstar Thermo has one of the highest caffeine contents for an energy drink, but it’s not the absolute highest out there. We came up with the chart below to help you understand exactly how much caffeine Rockstar Thermo has and how it compares to other energy drink options.
| Drink | Caffeine per 16-ounce serving |
| Rockstar Thermo | 300 mg |
| Monster Energy | 160 mg |
| Red Bull | 148 mg |
| Bang Energy | 300 mg |
| NOS | 160 mg |
Rockstar Thermo Caffeine Comparison
While the chart above breaks down how Rockstar Thermo compares to other energy drinks, how does it compare to other drink options? It’s a good question, and it’s why we highlighted exactly how it stacks up for you here:
| Drink | Caffeine per 16-ounce serving |
| Rockstar Thermo | 300 mg |
| McDonald’s coffee | 145 mg |
| Starbucks coffee | 360 mg |
| Coke | 45 mg |
| Lipton black tea | 55 mg |
What Is Rockstar Thermo?
Rockstar Thermo is an energy drink that Rockstar made to try and appeal to fitness enthusiasts. The drink contains 0 calories and 0 sugar, and they marketed it in a way that highlighted that you burn calories just by drinking it.
While that’s not necessarily a unique concept for a 0-calorie drink with caffeine, it was the marketing angle Rockstar used. However, while Rockstar hasn’t officially axed the Thermo line, they removed all mentions from their website in 2021, and you can’t find Rockstar Thermo at any stores.
Fun Facts About Rockstar Thermo
Rockstar Thermo provides plenty of caffeine, but that’s not all that it’s about! We’ve highlighted three fun facts about this delicious drink for you here:
1. You Burn Calories by Drinking Rockstar Thermo
As a 0-calorie drink with caffeine, you burn calories when you drink a Rockstar Thermo. It’s still not good for you with artificial sweeteners and other preservatives, but as a potential pre-workout drink, you could do worse!
2. Rockstar Thermo Has a Ton of Caffeine
Most energy drinks have somewhere between 150 and 200 mg of caffeine per 16-ounce serving. With 300 mg of caffeine in each can, Rockstar Thermo has one of the highest caffeine contents on the market.
3. Rockstar Thermo Has 1,000 mg of BCAAs
Not only does Rockstar Thermo have a ton of caffeine and 0 calories, but with 1,000 mg of BCAAs in each can, it also provides plenty of nutrients to help with muscle growth and energy. They focused on making a drink that doubles as a great pre-workout when they made Rockstar Thermo!
Final Thoughts
Rockstar Thermo is a great energy drink that provides quite the caffeine boost. But unfortunately, if you’re trying to track down one to drink, it’s not going to be easy. Rockstar discontinued the drink a few years ago, and since then, the global supply has dwindled down to practically nothing.
See also: How Much Caffeine Is in Rockstar Xdurance?
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