Yes, Dr Pepper has caffeine: about 41 mg in a 12 fl oz can, and 68 mg in a 20 fl oz bottle. Diet Dr Pepper and Dr Pepper Zero Sugar carry the same 41 mg, Dr Pepper Cherry is a touch lower at 40 mg, every other flavor with a published figure is 41 mg, and the two caffeine-free lines have none. A can is less than half the caffeine of an 8 oz cup of coffee. Figures are from Keurig Dr Pepper's own product facts pages, checked October 4, 2026.
That is the whole answer. The rest of this page is the breakdown by variety and by size, the yes-or-no answers for Diet, Zero and caffeine-free, how Dr Pepper compares with Coke and coffee, and how many cans fit inside the daily limit.
How much caffeine is in Dr Pepper by variety
Caffeine is added separately from the sweetener, which is why taking the sugar out does not take the caffeine out. Every variety below is per 12 fl oz, and every figure comes from the Keurig Dr Pepper product facts page for that product. Older references sometimes quote 42 mg, which is where the "41 to 42" range you see elsewhere comes from.
| Variety | Caffeine per 12 fl oz |
|---|---|
| Dr Pepper (original) | 41 mg |
| Diet Dr Pepper | 41 mg |
| Dr Pepper Zero Sugar | 41 mg |
| Dr Pepper Made with Real Sugar | 41 mg |
| Dr Pepper Cherry | 40 mg |
| Dr Pepper Cherry Zero Sugar | 41 mg |
| Dr Pepper Cream Soda | 41 mg |
| Dr Pepper Cream Soda Zero Sugar | 41 mg |
| Dr Pepper Strawberries & Cream | 41 mg |
| Dr Pepper Strawberries & Cream Zero Sugar | 41 mg |
| Dr Pepper Blackberry | 41 mg |
| Dr Pepper Blackberry Zero Sugar | 41 mg |
| Dr Pepper Creamy Coconut | 41 mg |
| Dr Pepper Creamy Coconut Zero Sugar | 41 mg |
| Caffeine Free Dr Pepper | 0 mg |
| Caffeine Free Diet Dr Pepper | 0 mg |
The pattern is simple. Diet, Zero and every flavored version carry the same caffeine as the original, give or take a milligram. The one milligram is cherry: Dr Pepper Cherry is the only caffeinated flavor listed under 41 mg, while the Cherry Zero Sugar can that replaced Diet Cherry is back at 41 mg, as is Cream Soda Zero Sugar. Two current flavors are missing on purpose: Cherry Vanilla and Diet Cherry Vanilla have no Keurig Dr Pepper product facts page, so I have left them out rather than guess. The only measurements I can find are old ones (Dr Pepper's own 2006 figure of 37 mg, and a 2007 lab study that measured about 39 to 40 mg), covered on the Cherry Vanilla and Diet Cherry Vanilla pages. Only the two caffeine-free lines are different, and they are different all the way to zero.
How much caffeine is in a can, a bottle, and a fountain cup?
The concentration is the same in every container, about 3.4 mg per fluid ounce, so the only thing that changes is the volume. Keurig Dr Pepper publishes the 12 oz can and the 20 oz bottle; the other sizes below are scaled from those two, which is why they are marked as estimates.
| Size | Caffeine | Basis |
|---|---|---|
| 7.5 fl oz mini can | about 26 mg | scaled from the 12 oz figure |
| 12 fl oz can | 41 mg | published by Keurig Dr Pepper |
| 16 fl oz can | about 55 mg | scaled |
| 20 fl oz bottle | 68 mg (Cherry 66 mg, Cherry Zero Sugar 69 mg) | published by Keurig Dr Pepper |
| 2 liter bottle | 41 mg per 12 oz serving, about 230 mg in the bottle | published per serving, bottle total scaled |
| 32 fl oz fountain cup | about 110 mg before ice | scaled |
| 44 fl oz fountain cup | about 150 mg before ice | scaled |
Two notes on the fountain cups. Those rows assume the whole cup is soda at the canned concentration. Ice takes up part of the cup, which lowers the real number, and fountain syrup ratios vary by machine, which can move it either way, so treat them as estimates rather than measurements.
Does Diet Dr Pepper have caffeine?
Yes. Diet Dr Pepper has 41 mg of caffeine per 12 fl oz can, exactly the same as the original. "Diet" only means the sugar is gone and the sweetener is aspartame; the caffeine is untouched. If you want a diet can without the caffeine, that is a separate product, Caffeine Free Diet Dr Pepper, covered below.
Does Dr Pepper Zero have caffeine?
Yes. Dr Pepper Zero Sugar has 41 mg of caffeine per 12 fl oz can and 68 mg per 20 fl oz bottle, the same as regular and Diet Dr Pepper. The same is true of every Zero Sugar flavor: Cherry, Cream Soda, Strawberries & Cream, Blackberry and Creamy Coconut all list 41 mg. There is no caffeine-free Zero Sugar in the current lineup, so if the caffeine is the thing you are avoiding, Zero is not the answer.
Is there a caffeine-free Dr Pepper?
Yes, two of them. Caffeine Free Dr Pepper keeps the sugar and the full 23-flavor taste with no caffeine, and Caffeine Free Diet Dr Pepper drops both the caffeine and the calories. Both can be hard to find on a shelf, which is why those two pages carry a where-to-buy link. Do not confuse either one with Dr Pepper Zero Sugar, which has the caffeine.
Dr Pepper caffeine vs Coke, Pepsi, Mountain Dew and coffee
Dr Pepper sits in the middle of the soda pack: more than Coca-Cola, a little more than Pepsi, well under Mountain Dew, and a long way under coffee. The soda figures are from CSPI's caffeine chart (it gives Pepsi as 35 to 38 mg across its regular, diet and zero sugar versions, and 38 mg is the regular one), and the coffee figure is Harvard's Nutrition Source.
| Drink (per 12 fl oz unless noted) | Caffeine |
|---|---|
| Coca-Cola | 34 mg |
| Pepsi | 38 mg |
| Dr Pepper | 41 mg |
| Mountain Dew | 54 mg |
| Brewed coffee (8 fl oz) | about 95 mg |
So a single can carries less than half the caffeine of one modest cup of coffee, and you would need two to two and a half cans to match it. If you have been treating Dr Pepper as a "high caffeine" soda, it is not. You will see 42 mg quoted elsewhere, including on Caffeine Informer's Dr Pepper page; that is the older figure, and Keurig Dr Pepper's current product facts say 41 mg.
Dr Pepper is not a cola, which surprises people who assume the caffeine makes it one. There is a deeper look at that in whether Dr Pepper is a cola and a full head-to-head in Dr Pepper vs Coke vs Pepsi.
How much caffeine is safe in a day?
This is the part worth being careful about, so the limits below are the published ones.
- Healthy adults: the FDA puts 400 mg a day as the level not generally associated with negative effects. That is roughly 9 to 10 cans of Dr Pepper, or about four cups of coffee.
- Pregnancy: the American College of Obstetricians and Gynecologists advises staying under 200 mg a day, which is four cans (164 mg); a fifth can takes you to 205 mg before counting anything else. Many people switch to the caffeine-free line during pregnancy to take the arithmetic off the table.
- Sensitivity varies: kids, people with heart conditions, and anyone who gets jittery or sleepless should count caffeine from every source, coffee, tea, energy drinks and chocolate included, not just soda.
For a healthy adult at 41 mg a can, the caffeine limit is a long way off. With regular Dr Pepper, the sugar adds up much sooner, and that side is covered in Dr Pepper calories, sugar and nutrition.
Why the caffeine matters for cravings
Mild caffeine, taken every afternoon, is exactly how a habit forms, and the "I need a can" feeling around 3 pm is partly caffeine and partly ritual. If that sounds familiar, two pieces go deeper: what Dr Pepper withdrawal feels like and how long it lasts and why I crave Dr Pepper. Switching to a caffeine-free can is the easiest tweak if you want the flavor without the late-day buzz.
If you want to stock either kind, you can grab a 12-pack of Dr Pepper (as an Amazon Associate I earn from qualifying purchases, at no extra cost to you), pick up Dr Pepper Zero Sugar for the zero-calorie route, or search for the caffeine-free version when you want the taste without the kick.
Frequently asked questions
Does Dr Pepper have more caffeine than Coke?
Yes, slightly. Dr Pepper has 41 mg per 12 oz can against Coca-Cola's 34 mg. The gap is small, and both are far below coffee.
How many mg of caffeine are in a can of Dr Pepper?
41 mg in a standard 12 fl oz can, per Keurig Dr Pepper's product facts. A 7.5 oz mini can works out to about 26 mg and a 16 oz can to about 55 mg, because the concentration is the same and only the volume changes.
How much caffeine is in a 20 oz Dr Pepper?
68 mg. That is the figure Keurig Dr Pepper publishes for the 20 fl oz bottle of the original, and for Zero Sugar, Cream Soda Zero Sugar and Strawberries & Cream. The Cherry bottles differ slightly: 66 mg for Cherry and 69 mg for Cherry Zero Sugar.
Does Dr Pepper Zero have caffeine?
Yes. Dr Pepper Zero Sugar has 41 mg of caffeine per 12 fl oz can, the same as the original. Removing the sugar does not remove the caffeine, because the two are added separately. Only the caffeine-free lines have none.
Does Diet Dr Pepper have caffeine?
Yes, 41 mg per 12 fl oz can, the same as regular Dr Pepper. The caffeine-free version of Diet is a separate product called Caffeine Free Diet Dr Pepper.
How many cans of Dr Pepper equal a cup of coffee?
Roughly two to two and a half cans. An 8 oz cup of brewed coffee has about 95 mg of caffeine, while a 12 oz Dr Pepper has 41 mg.
How much Dr Pepper is too much caffeine?
For a healthy adult, around 9 to 10 cans in a day would reach the FDA's 400 mg guideline. Long before that, the sugar in regular Dr Pepper becomes the real issue, so moderation is about sugar as much as caffeine.
The bottom line
Dr Pepper has a moderate amount of caffeine: 41 mg per 12 oz can for the original, the same for Diet, Zero Sugar and every flavor with a published figure except Cherry at 40 mg, 68 mg in a 20 oz bottle, and zero in the two caffeine-free lines. That is less than half a cup of coffee per can and well inside the FDA's 400 mg daily guideline for healthy adults. If caffeine is your concern, the caffeine-free version solves it entirely. If you are watching your overall intake, count your sugar too: that is the part of a daily can that adds up faster than the caffeine.