A standard small can of Red Bull has about 80 mg of caffeine in 8.4 fl oz (250 ml), which is similar to a regular cup of home‑brewed coffee.

Quick Scoop: How Much Caffeine in Red Bull?

Here’s the caffeine in the main Red Bull can sizes:

  • 8.4 fl oz (250 ml): 80 mg of caffeine
  • 12 fl oz: 114 mg of caffeine
  • 16 fl oz: 151 mg of caffeine
  • 20 fl oz: 198 mg of caffeine

Per volume, that’s roughly 32 mg caffeine per 100 ml (about 9–10 mg per fl oz).

How That Compares to Coffee

  • A typical 8 oz home‑brewed coffee: ~80–100 mg caffeine (similar to a small Red Bull).
  • Larger Red Bull cans (16–20 oz) can approach or exceed the caffeine in a large coffee, especially if you drink more than one in a day.

Health agencies like the FDA and EFSA generally consider up to 400 mg caffeine per day safe for most healthy adults, and single doses up to 200 mg are usually fine, so 1–2 regular cans fit within that limit if you don’t have other big caffeine sources.

Simple Safety Tips

  • Count all your caffeine (coffee, tea, soda, pre‑workout, pills, and Red Bull together).
  • Avoid stacking big cans back‑to‑back; spread them through the day if you use them.
  • If you’re pregnant, breastfeeding, sensitive to caffeine, or have heart/anxiety issues, talk to a doctor and aim lower than standard adult limits.

Bottom note: Information gathered from public forums or data available on the internet and portrayed here.