Caffeine in Energy Drinks, Compared

How much caffeine is in your energy drink? Here are all 977 drinks we track, compared by mg. Every figure is read off the actual label, flavor by flavor, not one generic number per brand, and it updates automatically the moment we add or correct a drink. Coffee comparisons use an 8 oz cup of brewed coffee, about 95mg (USDA).

Looking for the strongest cans? See our guide to the strongest energy drinks, ranked. Working out how much is right before training? Try the pre-workout caffeine calculator.

Highest caffeine

1. 1Redcon1 Total War Ready to Drink Pre Workout Tiger's BloodRedCon1
   ≈ 4 cups of coffee400mgBuy →
2. 2Redcon1 Total War Orange CrushRedCon1
   ≈ 4 cups of coffee365mgBuy →
3. 3Redcon1 Total War Ready to Drink Pre Workout Baja BombRedCon1
   ≈ 4 cups of coffee365mgBuy →
4. 4Redcon1 Total War Ready to Drink Pre Workout Strawberry MangoRedCon1
   ≈ 3.5 cups of coffee350mgBuy →
5. 5Redcon1 Total War Ready to Drink Pre Workout Rainbow CandyRedCon1
   ≈ 3.5 cups of coffee350mgBuy →
6. 6Redcon1 Total War Pre Workout Vice CityRedCon1
   ≈ 3.5 cups of coffee350mgBuy →
7. 7Total War Pre Workout Cali SplashRedCon1
   ≈ 3.5 cups of coffee350mgBuy →
8. 8Bang Redline Xtreme Triple BerryBang
   ≈ 3.5 cups of coffee316mg
9. 9Bang Redline Xtreme Bliss KissedBang
   ≈ 3.5 cups of coffee316mg
10. 10Reign Lilikoi LycheeReign
    ≈ 3 cups of coffee300mg
11. 11Reign Melon ManiaReign
    ≈ 3 cups of coffee300mg
12. 12Reign Inferno Watermelon WarlordReign
    ≈ 3 cups of coffee300mg
13. 13Bucked Up Energy Gym N’ JuiceBucked Up
    ≈ 3 cups of coffee300mg
14. 14Bang Star BlastBang
    ≈ 3 cups of coffee300mgBuy →
15. 15Raze Energy Sunny TeaRaze Energy
    ≈ 3 cups of coffee300mgBuy →

Lowest (excluding caffeine-free)

1. 1JOLT Root Beer Modern SodaJOLT
   less than a cup of coffee30mgBuy →
2. 2Bucked Up Drive Strawberry LemonadeBucked Up
   less than a cup of coffee50mgBuy →
3. 3

Caffeine-free

By brand

A range, not one number — most brands make both a low-caffeine and a high-caffeine line, and a single figure hides that. Brands with fewer than 3 rated flavors aren't shown here (not enough for a real range yet).

Compared with coffee, tea and soda

Coffee: USDA. Tea and cola: Mayo Clinic. Brewing strength varies.

How much caffeine is too much?

The FDA cites 400mg a day as an amount not generally linked to negative effects in healthy adults. That is about four cups of coffee, or one 300mg can plus a single cup. People vary a lot in how they react, and caffeine stays in your system for hours, so a late-afternoon can can still affect sleep. These limits are for adults; high-caffeine drinks aren't meant for children, and anyone pregnant or with a heart condition should ask a doctor. If you're dosing before training, the pre-workout caffeine calculator works it out by body weight.