Part of our Mushroom Coffee guide library.
Short answer: A 12-ounce can of caffeinated soda usually has 23 to 83 mg of caffeine (FDA), less than an 8-ounce cup of brewed coffee (about 95 mg). Per 12-ounce can, Coca-Cola and Coke Zero have 34 mg, Pepsi and Pepsi Zero Sugar 38 mg, Dr Pepper about 41 mg, Diet Coke 46 mg and Mountain Dew 54 mg, while Sprite, Fanta, Fresca, A&W Root Beer and Mug Root Beer are caffeine-free. Most Olipop and poppi flavors are caffeine-free, but their colas have 40 to 60 mg.
How much caffeine is in your soda depends on the brand, the flavor and the size of the can or bottle. Below is a chart of popular U.S. sodas using each company's own published figures, followed by quick answers for Sprite, Coke Zero, Pepsi, root beer, Olipop and poppi, how soda compares with coffee and tea, and how much caffeine is too much.
What you'll learn
- How much caffeine is in Coke, Pepsi, Dr Pepper, Mountain Dew and other sodas
- Which sodas are caffeine-free, including Sprite, Fanta and most root beers
- Which Olipop and poppi flavors have caffeine
- How soda compares with coffee, tea and espresso
- How much caffeine is too much
Caffeine in soda chart
| Soda | Caffeine per 12 fl oz | Source |
|---|---|---|
| Mountain Dew Baja Blast Zero Sugar | 68 mg | PepsiCo |
| Mountain Dew Baja Blast | 59 mg | PepsiCo |
| Mountain Dew | 54 mg | PepsiCo |
| Diet Coke | 46 mg | Coca-Cola |
| Dr Pepper | About 41 mg | Keurig Dr Pepper |
| Diet Dr Pepper | About 41 mg | Keurig Dr Pepper |
| Pepsi | 38 mg | PepsiCo |
| Pepsi Zero Sugar | 38 mg | PepsiCo |
| Diet Pepsi | 35 mg | PepsiCo |
| Coca-Cola | 34 mg | Coca-Cola |
| Coca-Cola Zero Sugar (Coke Zero) | 34 mg | Coca-Cola |
| Barq's Root Beer | 22 mg | Coca-Cola |
| Sprite and Sprite Zero | 0 (caffeine-free) | Coca-Cola |
| Fanta | 0 (caffeine-free) | Coca-Cola |
| Fresca | 0 (caffeine-free) | Coca-Cola |
| A&W Root Beer | 0 (caffeine-free) | Keurig Dr Pepper |
| Mug Root Beer | 0 mg | PepsiCo |
Figures are from each company's U.S. website or product facts, checked on October 25, 2026, for 12-ounce cans. Recipes and labels change, so check the can if you need an exact number. Larger bottles have more: a 20-ounce bottle of Pepsi has 63 mg (PepsiCo).
Does Sprite have caffeine?
No. Sprite is caffeine-free, and so are Sprite Zero, Fanta and Fresca, according to Coca-Cola (Coca-Cola; Coca-Cola). Coca-Cola also sells caffeine-free versions of Coca-Cola, Diet Coke and Coca-Cola Zero Sugar (Coca-Cola).
Does Coke Zero have caffeine?
Yes, 34 mg per 12-ounce serving, the same as regular Coca-Cola (Coca-Cola; Coca-Cola). Diet Coke has more, 46 mg per 12 ounces (Coca-Cola), so "diet" does not mean less caffeine.
Does Pepsi have caffeine?
Yes. A 12-ounce can of Pepsi has 38 mg of caffeine, and so does a 12-ounce can of Pepsi Zero Sugar (PepsiCo; PepsiCo). Diet Pepsi has 35 mg (PepsiCo). If you have seen a higher figure for Pepsi Zero Sugar, check the current label: PepsiCo's product facts list 38 mg per 12-ounce can.
How much caffeine is in Dr Pepper and Mountain Dew?
Dr Pepper and Diet Dr Pepper each have about 41 mg per 12 ounces (Keurig Dr Pepper; Keurig Dr Pepper). Mountain Dew has 54 mg, Mountain Dew Baja Blast 59 mg and Baja Blast Zero Sugar 68 mg per 12-ounce can (PepsiCo; PepsiCo; PepsiCo), the most of the sodas in our chart.
Does root beer have caffeine?
Most root beers do not. A&W Root Beer is caffeine-free and Mug Root Beer has 0 mg (Keurig Dr Pepper; PepsiCo), but Barq's Root Beer has 22 mg per 12 ounces (Coca-Cola).
Do Olipop and poppi have caffeine?
Most flavors do not, but their cola-style flavors do. Olipop's Vintage Cola, Doctor Goodwin and Cherry Cola have 50 mg of caffeine per can and Citrus Rush has 60 mg; its other flavors are caffeine-free (Olipop). For poppi, Classic Cola, Cherry Cola and Doc Pop have 40 mg per 12-ounce can and Alpine Blast has 55 mg, while most other flavors are caffeine-free (PepsiCo; poppi FAQ).
| Brand and flavor | Caffeine | Source |
|---|---|---|
| Olipop Vintage Cola, Doctor Goodwin, Cherry Cola | 50 mg per can | Olipop |
| Olipop Citrus Rush | 60 mg per can | Olipop |
| Other Olipop flavors | 0 | Olipop |
| poppi Classic Cola, Cherry Cola, Doc Pop | 40 mg per 12 fl oz can | PepsiCo |
| poppi Alpine Blast | 55 mg per 12 fl oz can | PepsiCo |
| Most other poppi flavors | 0 | poppi FAQ |
How soda compares with coffee, tea and espresso
Soda usually has less caffeine than coffee. A 12-ounce caffeinated soft drink typically has 23 to 83 mg, compared with 113 to 247 mg in 12 ounces of brewed coffee (FDA).
| Drink | Serving | Caffeine | Source |
|---|---|---|---|
| Brewed coffee | 12 fl oz | 113–247 mg | FDA |
| Brewed coffee | 8 fl oz | About 95 mg | USDA |
| Black tea | 12 fl oz | About 71 mg | FDA |
| Caffeinated soft drink | 12 fl oz | 23–83 mg | FDA |
| Green tea | 12 fl oz | About 37 mg | FDA |
| NeuroCoffee (mushroom coffee) | 2 tbsp | 30 mg | Product Facts |
See also how much caffeine is in a shot of espresso, caffeine in coffee and caffeine in tea.
How much soda caffeine is too much?
For most healthy adults, the FDA cites up to 400 mg of caffeine a day as an amount not generally linked to negative effects (FDA). Even the highest-caffeine soda in our chart has 68 mg per 12-ounce can, but caffeine from soda, coffee, tea, energy drinks and chocolate adds up over a day. People vary in their sensitivity, and if you are pregnant, trying to become pregnant or breastfeeding, the FDA recommends asking your health care provider whether you should limit caffeine (FDA). For more, see how much caffeine is too much and caffeine withdrawal.
Common myths (quick reality check)
Myth: Diet sodas have less caffeine. Reality: Not always. Diet Coke has 46 mg per 12 ounces, more than regular Coca-Cola at 34 mg.
Myth: All root beer is caffeine-free. Reality: A&W and Mug are, but Barq's Root Beer has 22 mg per 12 ounces.
Myth: Prebiotic sodas never have caffeine. Reality: Most Olipop and poppi flavors are caffeine-free, but their cola-style flavors have 40 to 60 mg.
Frequently asked questions (FAQ)
Does Sprite have caffeine?
No. Sprite and Sprite Zero are caffeine-free.
Does Coke Zero have caffeine?
Yes, 34 mg per 12 ounces, the same as regular Coca-Cola. Diet Coke has 46 mg.
Does Pepsi Zero Sugar have caffeine?
Yes. PepsiCo lists 38 mg per 12-ounce can, the same as regular Pepsi.
How much caffeine is in Dr Pepper?
About 41 mg per 12 ounces, for both Dr Pepper and Diet Dr Pepper.
How much caffeine is in Mountain Dew?
54 mg per 12-ounce can. Baja Blast has 59 mg and Baja Blast Zero Sugar 68 mg.
Does Olipop have caffeine?
Only a few flavors: Vintage Cola, Doctor Goodwin and Cherry Cola have 50 mg per can, and Citrus Rush has 60 mg. The rest are caffeine-free.
Does poppi have caffeine?
Most flavors are caffeine-free. Classic Cola, Cherry Cola and Doc Pop have 40 mg per 12-ounce can, and Alpine Blast has 55 mg.
Which soda has the most caffeine?
Of the sodas in our chart, Mountain Dew Baja Blast Zero Sugar has the most, 68 mg per 12-ounce can, followed by Baja Blast at 59 mg and Mountain Dew at 54 mg.
Does Fanta have caffeine?
No. Fanta is caffeine-free, as are Fresca, A&W Root Beer and Mug Root Beer.
Related guides
- Caffeine in energy drinks: Monster, Celsius, Alani Nu, Red Bull and more
- How much caffeine is in a shot of espresso?
- How much caffeine is in a cup of coffee?
- How much caffeine is in tea?
- How much caffeine is too much?
- Coffee alternatives
Disclaimer and when to seek help
This article is for general education and is not medical advice. These statements have not been evaluated by the Food and Drug Administration. Our products are not intended to diagnose, treat, cure, or prevent any disease. Brand names are trademarks of their respective owners, and OurJrney is not affiliated with them. Caffeine figures come from each company's published information on October 25, 2026, and may change. Talk to your health care provider about caffeine if you are pregnant, trying to become pregnant or breastfeeding, have a heart condition, anxiety or high blood pressure, or take medication.
References
- U.S. Food and Drug Administration. "Spilling the Beans: How Much Caffeine Is Too Much?" Content current as of August 28, 2024.
- The Coca-Cola Company. What is caffeine? (FAQ) and product pages for Coca-Cola, Coca-Cola Zero Sugar, Diet Coke, Sprite and Barq's. Accessed October 25, 2026.
- PepsiCo Product Facts. Caffeine in PepsiCo beverages and product pages for Pepsi, Pepsi Zero Sugar, Diet Pepsi, Mountain Dew, Mountain Dew Baja Blast and Mug Root Beer. Accessed October 25, 2026.
- Keurig Dr Pepper Product Facts. Product pages for Dr Pepper, Diet Dr Pepper and A&W Root Beer. Accessed October 25, 2026.
- Olipop. Frequently asked questions. Accessed October 25, 2026.
- U.S. Department of Agriculture. FoodData Central: brewed coffee (FDC 171890).
