Caffeine chart: coffee, tea, soda and energy drinks
Caffeine per serving and per fluid ounce for each drink in the calculator. Generic coffee and tea figures are USDA averages; branded drinks use the maker's published number, checked October 19, 2026. Other sizes are in the sections below.
| Drink | Serving | Caffeine | mg per fl oz | Source |
|---|---|---|---|---|
| Coffee (USDA averages) | ||||
| Brewed coffee (drip) | 12 fl oz355 mL | 142 mg | 12 | USDA FDC 171890 |
| Espresso | 1 fl oz30 mL | 63 mg | 63 | USDA FDC 171891 |
| Instant coffee | 8 fl oz237 mL | 62 mg | 7.8 | USDA FDC 174130 |
| Decaf brewed coffee | 8 fl oz237 mL | 2 mg | 0.3 | USDA FDC 171889 |
| Starbucks drinks | ||||
| Starbucks brewed coffee (Pike Place, Blonde, Dark) | 16 fl oz473 mL | 315–390 mg | 20 | Starbucks |
| Starbucks Decaf Pike Place | 16 fl oz473 mL | 25 mg | 1.6 | Starbucks |
| Starbucks espresso | 1.5 fl oz44 mL | 150 mg | 100 | Starbucks |
| Starbucks Caffè Americano | 16 fl oz473 mL | 225 mg | 14 | Starbucks |
| Starbucks Caffè Latte or Cappuccino | 16 fl oz473 mL | 150 mg | 9.4 | Starbucks |
| Starbucks Flat White | 16 fl oz473 mL | 195 mg | 12 | Starbucks |
| Starbucks Cold Brew | 16 fl oz473 mL | 205 mg | 13 | Starbucks |
| Starbucks Nitro Cold Brew | 16 fl oz473 mL | 280 mg | 18 | Starbucks |
| Starbucks Iced Coffee | 16 fl oz473 mL | 185 mg | 12 | Starbucks |
| Starbucks Matcha Latte | 16 fl oz473 mL | 65 mg | 4.1 | Starbucks |
| Starbucks Chai Latte | 16 fl oz473 mL | 55 mg | 3.4 | Starbucks |
| Bottled coffee drinks | ||||
| Starbucks bottled Frappuccino, Coffee | 13.7 fl oz405 mL | 110 mg | 8.0 | PepsiCo |
| Starbucks bottled Frappuccino, Mocha | 13.7 fl oz405 mL | 105 mg | 7.7 | PepsiCo |
| Starbucks bottled Frappuccino, Vanilla | 13.7 fl oz405 mL | 60 mg | 4.4 | PepsiCo |
| Starbucks Cold Brew Black Unsweet (40 fl oz carton) | 12 fl oz355 mL | 255 mg | 21 | PepsiCo |
| Starbucks Doubleshot Energy, Coffee | 15 fl oz444 mL | 135 mg | 9.0 | PepsiCo |
| Starbucks Tripleshot Energy, Caffè Mocha | 15 fl oz444 mL | 225 mg | 15 | PepsiCo |
| Tea | ||||
| Black tea, brewed | 8 fl oz237 mL | 47 mg | 5.9 | USDA FDC 173227 |
| Green tea, brewed | 8 fl oz237 mL | 28 mg | 3.5 | USDA FDC 171917 |
| Oolong tea, brewed | 8 fl oz237 mL | 38 mg | 4.8 | USDA FDC 174120 |
| Decaf black tea, brewed | 8 fl oz237 mL | 2 mg | 0.3 | USDA FDC 174871 |
| Herbal tea, brewed | 8 fl oz237 mL | 0 mg | 0 | USDA FDC 173232 |
| Pure Leaf Unsweetened Black Tea | 18.5 fl oz547 mL | 54 mg | 2.9 | PepsiCo |
| Pure Leaf Sweet Tea | 18.5 fl oz547 mL | 54 mg | 2.9 | PepsiCo |
| Soda | ||||
| Coca-Cola | 12 fl oz355 mL | 34 mg | 2.8 | Coca-Cola |
| Diet Coke | 12 fl oz355 mL | 46 mg | 3.8 | Coca-Cola |
| Coca-Cola Zero Sugar | 12 fl oz355 mL | 34 mg | 2.8 | Coca-Cola |
| Pepsi | 12 fl oz355 mL | 38 mg | 3.2 | PepsiCo |
| Diet Pepsi | 12 fl oz355 mL | 35 mg | 2.9 | PepsiCo |
| Pepsi Zero Sugar | 12 fl oz355 mL | 38 mg | 3.2 | PepsiCo |
| Mountain Dew | 12 fl oz355 mL | 54 mg | 4.5 | PepsiCo |
| Mountain Dew Zero Sugar | 12 fl oz355 mL | 68 mg | 5.7 | PepsiCo |
| Diet Mountain Dew | 12 fl oz355 mL | 54 mg | 4.5 | PepsiCo |
| Dr Pepper | 12 fl oz355 mL | 41 mg | 3.4 | Keurig Dr Pepper |
| Dr Pepper Zero Sugar | 12 fl oz355 mL | 41 mg | 3.4 | Keurig Dr Pepper |
| Energy drinks | ||||
| Red Bull Energy Drink | 8.4 fl oz248 mL | 80 mg | 9.5 | Red Bull |
| Monster Energy (Original Green) | 16 fl oz473 mL | 160 mg | 10 | Monster |
| Monster Energy Zero Sugar | 16 fl oz473 mL | 160 mg | 10 | Monster |
| CELSIUS | 12 fl oz355 mL | 200 mg | 17 | CELSIUS |
| Mtn Dew Kickstart, Orange Citrus | 12 fl oz355 mL | 69 mg | 5.8 | PepsiCo |
How much caffeine is in a cup of coffee?
About 95 mg in an 8 fl oz (237 mL) cup of brewed coffee, or about 12 mg per fluid ounce. That is USDA FoodData Central's average for brewed coffee (FDC ID 171890), which covers both home-brewed and fast food coffee. A 12 oz mug comes to about 142 mg.
Cups vary. USDA's 8 lab samples ranged from 30 to 44 mg per 100 g, which is 71 to 104 mg in an 8 oz cup. The FDA puts a typical 12 oz cup of regular, non-specialty brewed coffee at 113 to 247 mg. More coffee per cup of water means more caffeine, so a stronger ratio from our coffee ratio calculator gives a stronger cup in both senses.
| Cup size | Brewed coffee | Instant coffee | Decaf brewed |
|---|---|---|---|
| 6 fl oz177 mL | 71 mg | 46 mg | 2 mg |
| 8 fl oz237 mL | 95 mg | 62 mg | 2 mg |
| 10 fl oz296 mL | 118 mg | 77 mg | 3 mg |
| 12 fl oz355 mL | 142 mg | 93 mg | 4 mg |
| 16 fl oz473 mL | 189 mg | 124 mg | 5 mg |
| 20 fl oz591 mL | 237 mg | 155 mg | 6 mg |
By brew method, USDA separates only brewed (drip) coffee, espresso and instant coffee. Instant has about two thirds the caffeine of brewed, at 62 mg per 8 oz (FDC ID 174130). There is no USDA entry for French press, pour over or cold brew, so we don't give separate numbers for them; the cold brew figures below are Starbucks' own.
Coffee-shop cups run far stronger and larger. Starbucks lists a Grande (16 fl oz) Pike Place at 315–390 mg, about 20 to 24 mg per ounce, against USDA's 12. Brewing at home? See our coffee maker picks, such as the OXO Brew 9-Cup.
How much caffeine is in a shot of espresso?
About 63 mg in a 1 fl oz single shot and 126 mg in a 2 fl oz double, by USDA's figure of 212 mg per 100 g for restaurant-prepared espresso (FDC ID 171891). Starbucks lists 75 mg for its 0.75 fl oz Solo and 150 mg for a Doppio.
| Espresso | Size | Caffeine | mg per fl oz |
|---|---|---|---|
| Single shot (USDA) | 1 fl oz | 63 mg | 63 |
| Double shot (USDA) | 2 fl oz | 126 mg | 63 |
| Starbucks Solo | 0.75 fl oz | 75 mg | 100 |
| Starbucks Doppio | 1.5 fl oz | 150 mg | 100 |
| Starbucks Triple | 2.25 fl oz | 225 mg | 100 |
| Starbucks Quad | 3 fl oz | 300 mg | 100 |
Per ounce, espresso has about five times the caffeine of drip coffee (63 mg against 12 mg). Per serving, an 8 oz cup of drip (95 mg) beats a single shot (63 mg), and a double (126 mg) beats the cup. Espresso drinks carry only the shots in them: a Starbucks Grande latte has two shots and 150 mg. Our espresso vs. coffee guide covers taste and brewing, and our home espresso machine picks include the Gaggia Classic Pro.
Caffeine in Starbucks coffee by size
From each drink's nutrition page on starbucks.com, checked October 19, 2026. Starbucks gives brewed coffee as a range ("Caffeine is an approximate value"); Blonde and Dark Roast list the same figures as Pike Place. Hot drinks: Short 8, Tall 12, Grande 16, Venti 20 fl oz. Iced Venti is 24 fl oz.
| Drink | Short | Tall | Grande | Venti |
|---|---|---|---|---|
| Brewed coffee (Pike Place, Blonde, Dark) | 155–195 mg | 235–290 mg | 315–390 mg | 390–490 mg |
| Caffè Americano | 75 mg | 150 mg | 225 mg | 300 mg |
| Caffè Latte or Cappuccino | 75 mg | 75 mg | 150 mg | 150 mg |
| Flat White | 130 mg | 130 mg | 195 mg | 195 mg |
| Cold Brew | – | 155 mg | 205 mg | 310 mg |
| Nitro Cold Brew | – | 215 mg | 280 mg | – |
| Iced Coffee | – | 135 mg | 185 mg | 265 mg |
| Decaf Pike Place | 15 mg | 20 mg | 25 mg | 30 mg |
| Matcha Latte | 20 mg | 45 mg | 65 mg | 85 mg |
| Chai Latte | 25 mg | 35 mg | 55 mg | 75 mg |
A Grande brewed coffee alone is 315 to 390 mg, close to the FDA's 400 mg for the whole day. A Venti (up to 490 mg) can pass it.
How much caffeine is in cold brew?
Starbucks lists 205 mg for a Grande (16 fl oz) Cold Brew, 13 mg per ounce. That is less than its Grande hot brewed coffee (315–390 mg) but more than USDA's average drip coffee. Nitro Cold Brew is stronger at 280 mg for a Grande, and Iced Coffee has 185 mg.
| Starbucks Cold Brew | Caffeine |
|---|---|
| Tall (12 fl oz) | 155 mg |
| Grande (16 fl oz) | 205 mg |
| Venti (24 fl oz) | 310 mg |
| Trenta (30 fl oz) | 360 mg |
Starbucks' bottled Cold Brew Black Unsweet, made by PepsiCo, lists 255 mg per 12 fl oz serving. Homemade cold brew has no standard strength: it depends on how much coffee you steep and whether you dilute the concentrate. Our coffee ratio calculator has the cold brew ratios, and our coffee maker guide covers the OXO cold brew maker.
How much caffeine is in tea?
About 47 mg in an 8 oz cup of brewed black tea and 28 mg in green tea, by USDA's averages. That is about half the caffeine of brewed coffee for black tea and under a third for green. The FDA's typical figures for a 12 oz cup are 71 mg for black tea and 37 mg for green.
| Tea, brewed | 8 fl oz | 12 fl oz | FDC ID |
|---|---|---|---|
| Black tea | 47 mg | 71 mg | 173227 |
| Green tea | 28 mg | 43 mg | 171917 |
| Oolong tea | 38 mg | 57 mg | 174120 |
| Decaf black tea | 2 mg | 4 mg | 174871 |
| Herbal tea | 0 mg | 0 mg | 173232 |
Brewing time, leaf amount and the tea itself all change the number; USDA's green tea samples ranged from 8 to 18 mg per 100 g. Herbal teas made without tea leaves have none, but blends with green or black tea, yerba mate or guarana do.
USDA has no entry for matcha. Starbucks lists 65 mg for a Grande Matcha Latte and 55 mg for a Grande Chai Latte. Bottled Pure Leaf Unsweetened Black Tea has 54 mg in an 18.5 fl oz bottle, per PepsiCo.
How much caffeine is in Coke, Diet Coke, Pepsi and Mountain Dew?
A 12 oz can of Coca-Cola has 34 mg of caffeine, Diet Coke has 46 mg and Coke Zero Sugar 34 mg, according to Coca-Cola. Pepsi has 38 mg and Mountain Dew 54 mg per 12 oz can, per PepsiCo. A can of Diet Coke has about half the caffeine of an 8 oz cup of coffee. The FDA's typical range for a 12 oz caffeinated soft drink is 23 to 83 mg.
| Soda | Size | Caffeine | Source |
|---|---|---|---|
| Coca-Cola | 12 fl oz can | 34 mg | Coca-Cola |
| Diet Coke | 12 fl oz can | 46 mg | Coca-Cola |
| Coca-Cola Zero Sugar | 12 fl oz can | 34 mg | Coca-Cola |
| Pepsi | 12 fl oz can | 38 mg | PepsiCo |
| 16.9 fl oz bottle | 53 mg | ||
| 20 fl oz bottle | 63 mg | ||
| Diet Pepsi | 12 fl oz can | 35 mg | PepsiCo |
| 20 fl oz bottle | 59 mg | ||
| Pepsi Zero Sugar | 12 fl oz can | 38 mg | PepsiCo |
| 20 fl oz bottle | 63 mg | ||
| Mountain Dew | 12 fl oz can | 54 mg | PepsiCo |
| 16.9 fl oz bottle | 77 mg | ||
| 20 fl oz bottle | 91 mg | ||
| Mountain Dew Zero Sugar | 12 fl oz can | 68 mg | PepsiCo |
| 20 fl oz bottle | 113 mg | ||
| Diet Mountain Dew | 12 fl oz can | 54 mg | PepsiCo |
| 20 fl oz bottle | 91 mg | ||
| Dr Pepper | 12 fl oz can | 41 mg | Keurig Dr Pepper |
| Dr Pepper Zero Sugar | 12 fl oz can | 41 mg | Keurig Dr Pepper |
Diet Coke has more caffeine than regular Coke, and Mountain Dew Zero Sugar (68 mg per 12 oz) more than regular Mountain Dew. Coca-Cola Caffeine Free and Caffeine Free Diet Coke have none.
How much caffeine is in Red Bull, Monster and Celsius?
An 8.4 oz can of Red Bull has 80 mg of caffeine and a 12 oz can 114 mg, per Red Bull. A 16 oz Monster Energy has 160 mg, per Monster, and a 12 oz CELSIUS 200 mg, per CELSIUS. The FDA says energy drinks generally have 54 to 328 mg per 16 fl oz.
| Energy drink | Size | Caffeine | mg per fl oz |
|---|---|---|---|
| Red Bull Energy Drink | 8.4 fl oz can | 80 mg | 9.5 |
| 12 fl oz can | 114 mg | 9.5 | |
| 16 fl oz can | 151 mg | 9.4 | |
| 20 fl oz can | 198 mg | 9.9 | |
| Monster Energy (Original Green) | 16 fl oz can | 160 mg | 10 |
| Monster Energy Zero Sugar | 16 fl oz can | 160 mg | 10 |
| CELSIUS | 12 fl oz can | 200 mg | 17 |
| Mtn Dew Kickstart, Orange Citrus | 12 fl oz can | 69 mg | 5.8 |
| Starbucks Doubleshot Energy, Coffee | 15 fl oz can | 135 mg | 9.0 |
| Starbucks Tripleshot Energy, Caffè Mocha | 15 fl oz can | 225 mg | 15 |
Per ounce, Red Bull (9.5 mg) and Monster (10 mg) are close to brewed coffee; CELSIUS (17 mg) is stronger. CELSIUS itself recommends no more than two 12 oz cans a day. 5-hour ENERGY does not publish a milligram figure on its site; it says a Regular Strength shot has about as much caffeine as 8 ounces of "the leading premium coffee", and Extra Strength about as much as 12 ounces.
How much caffeine is too much?
For most healthy adults, the FDA cites 400 mg a day as an amount not generally associated with negative effects, which it describes as about two to three 12 oz cups of coffee. The European Food Safety Authority uses the same 400 mg a day (about 5.7 mg per kg of body weight) and adds that single doses up to 200 mg, about 3 mg per kg, raise no safety concerns.
Here is how many of each drink add up to 400 mg:
| Drink | Caffeine each | Servings to 400 mg |
|---|---|---|
| Brewed coffee, 8 fl oz | 95 mg | 4.2 |
| Brewed coffee, 12 fl oz mug | 142 mg | 2.8 |
| Espresso, 1 fl oz single shot | 63 mg | 6.3 |
| Starbucks Grande brewed coffee | 315–390 mg | 1.0–1.3 |
| Starbucks Grande Cold Brew | 205 mg | 2.0 |
| Black tea, 8 fl oz | 47 mg | 8.5 |
| Green tea, 8 fl oz | 28 mg | 14.3 |
| Coca-Cola, 12 fl oz can | 34 mg | 11.8 |
| Diet Coke, 12 fl oz can | 46 mg | 8.7 |
| Mountain Dew, 12 fl oz can | 54 mg | 7.4 |
| Red Bull, 8.4 fl oz can | 80 mg | 5.0 |
| Monster Energy, 16 fl oz can | 160 mg | 2.5 |
| CELSIUS, 12 fl oz can | 200 mg | 2.0 |
- Sensitivity varies. The FDA notes wide differences in how sensitive people are to caffeine and how fast they clear it, and that some conditions and medications make people more sensitive.
- Pregnancy. ACOG's committee opinion describes moderate consumption as less than 200 mg a day, and EFSA uses the same 200 mg. The FDA recommends talking to your health care provider if you're pregnant, trying to become pregnant or breastfeeding.
- Children and teens. The FDA cites the Dietary Guidelines for Americans that drinks with caffeine should be avoided for children under 2, and the American Academy of Pediatrics' advice against energy drinks for children and teens.
- Pure caffeine. The FDA estimates that toxic effects such as seizures can come from rapidly taking in around 1,200 mg, less than half a teaspoon of pure caffeine powder.
- Decaf isn't zero. The FDA says decaf coffee typically has 2 to 15 mg per 8 oz cup; Starbucks lists 25 mg for a Grande decaf.
This page is a kitchen reference for what's in your cup, not medical advice. If you're pregnant or have a health condition, ask your doctor how much caffeine is right for you.
How this calculator works
- Coffee and tea use USDA FoodData Central SR Legacy values: caffeine in mg per 100 g, times the gram weight USDA lists for 1 fl oz (29.6 g for brewed coffee and tea), times the cup size. For example, 40 mg per 100 g × 29.6 g × 8 fl oz = 95 mg. USDA lists no ounce weight for oolong, so we use the same 29.6 g.
- Branded drinks use the figure the maker publishes for that exact size. We don't scale a 12 oz figure up to other sizes; sizes a maker doesn't list aren't offered. Recipes change, so check the label for the current number.
- Ranges. Starbucks gives brewed coffee as a range, so the calculator shows a low and high total when you add it.
- Your cup may differ. USDA values are averages of lab samples, and the caffeine in coffee and tea changes with the beans or leaves, the amount used and the brewing time.
Dunkin' doesn't list caffeine in its nutrition guide (checked October 19, 2026), so its drinks aren't included.
Sources
- USDA FoodData Central, SR Legacy FDC ID 171890: Beverages, coffee, brewed, prepared with tap water. Caffeine 40 mg per 100 g (analytical, 8 samples, range 30–44 mg); 1 fl oz = 29.6 g, 1 cup (8 fl oz) = 237 g. fdc.nal.usda.gov/food-details/171890/nutrients
- USDA FoodData Central, SR Legacy FDC ID 171891: Beverages, coffee, brewed, espresso, restaurant-prepared. Caffeine 212 mg per 100 g (analytical); 1 fl oz = 29.6 g. fdc.nal.usda.gov/food-details/171891/nutrients
- USDA FoodData Central, SR Legacy FDC ID 174130: Beverages, coffee, instant, regular, prepared with water. Caffeine 26 mg per 100 g; 1 fl oz = 29.8 g. fdc.nal.usda.gov/food-details/174130/nutrients
- USDA FoodData Central, SR Legacy FDC ID 171889: Beverages, coffee, brewed, prepared with tap water, decaffeinated. Caffeine 1 mg per 100 g; 1 fl oz = 29.6 g. fdc.nal.usda.gov/food-details/171889/nutrients
- USDA FoodData Central, SR Legacy FDC ID 173227: Beverages, tea, black, brewed, prepared with tap water. Caffeine 20 mg per 100 g; 1 fl oz = 29.6 g. fdc.nal.usda.gov/food-details/173227/nutrients
- USDA FoodData Central, SR Legacy FDC ID 171917: Beverages, tea, green, brewed, regular. Caffeine 12 mg per 100 g (analytical, 6 samples, range 8–18 mg); 1 fl oz = 29.6 g. fdc.nal.usda.gov/food-details/171917/nutrients
- USDA FoodData Central, SR Legacy FDC ID 174120: Beverages, tea, Oolong, brewed. Caffeine 16 mg per 100 g (analytical, range 14–19 mg). USDA lists no fl oz weight for this entry; we use the 29.6 g it lists for other brewed teas. fdc.nal.usda.gov/food-details/174120/nutrients
- USDA FoodData Central, SR Legacy FDC ID 173232: Beverages, tea, herb, other than chamomile, brewed. Caffeine 0 mg per 100 g. fdc.nal.usda.gov/food-details/173232/nutrients
- USDA FoodData Central, SR Legacy FDC ID 174871: Beverages, tea, black, brewed, prepared with tap water, decaffeinated. Caffeine 1 mg per 100 g; 1 fl oz = 29.6 g. fdc.nal.usda.gov/food-details/174871/nutrients
- U.S. Food and Drug Administration, Spilling the Beans: How Much Caffeine Is Too Much? (400 mg a day for most adults; toxic effects around 1,200 mg taken quickly; decaf coffee 2–15 mg per 8 fl oz; typical caffeine in 12 fl oz drinks). Content current as of 08/28/2024. www.fda.gov/consumers/consumer-updates/spilling-beans-how-much-caffeine-too-much
- American College of Obstetricians and Gynecologists, Committee Opinion No. 462, Moderate Caffeine Consumption During Pregnancy (August 2010, reaffirmed 2026): moderate consumption, less than 200 mg per day. www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2010/08/moderate-caffeine-consumption-during-pregnancy
- European Food Safety Authority, Caffeine topic page summarizing its 2015 Scientific Opinion on the safety of caffeine: single doses up to 200 mg (about 3 mg/kg body weight) and up to 400 mg a day (about 5.7 mg/kg) for healthy adults; up to 200 mg a day in pregnancy. www.efsa.europa.eu/en/topics/topic/caffeine
- Starbucks menu, Medium Roast - Pike Place Roast, nutrition by size (Short 8 fl oz to Venti 20 fl oz; caffeine given as a range). Blonde and Dark Roast list the same figures. www.starbucks.com/menu/product/480/hot/nutrition
- Starbucks menu, Decaf Roast - Pike Place Roast, nutrition by size. www.starbucks.com/menu/product/481/hot/nutrition
- Starbucks menu, Espresso: Solo 0.75 fl oz, Doppio 1.5 fl oz, Triple 2.25 fl oz, Quad 3 fl oz. www.starbucks.com/menu/product/410/hot/nutrition
- Starbucks menu, Caffè Americano, nutrition by size. www.starbucks.com/menu/product/406/hot/nutrition
- Starbucks menu, Caffè Latte, nutrition by size (Cappuccino lists the same caffeine). www.starbucks.com/menu/product/407/hot/nutrition
- Starbucks menu, Cold Brew, nutrition by size (Tall 12 fl oz to Trenta 30 fl oz). www.starbucks.com/menu/product/2121255/iced/nutrition
- Starbucks menu nutrition for Flat White, Iced Coffee, Nitro Cold Brew, Matcha Latte and Chai Latte (each drink's product page, by size). www.starbucks.com/menu
- PepsiCo Product Facts, Caffeine: "Products with Caffeine" table, mg per package or serving (Pepsi, Diet Pepsi, Pepsi Zero Sugar, Mountain Dew, Mtn Dew Kickstart, Pure Leaf, and the bottled Starbucks drinks PepsiCo makes). www.pepsicoproductfacts.com/home/caffeine
- Coca-Cola US, Coca-Cola Original FAQ: "A 12-ounce can of Coke has 34mg of caffeine". www.coca-cola.com/us/en/brands/coca-cola/products/original
- Coca-Cola US, Diet Coke nutrition facts: "Caffeine Content: 46mg / 12 fl oz". www.coca-cola.com/us/en/brands/diet-coke/products
- Coca-Cola US, Coca-Cola Zero Sugar: a 12 fl oz serving contains about 34 mg of caffeine. www.coca-cola.com/us/en/brands/coca-cola/products/zero
- Keurig Dr Pepper Product Facts, Dr Pepper 12 fl oz: "Contains approx. 41mg caffeine". www.kdpproductfacts.com/product/a0e3h000003LJzZAAW/dr-pepper-12-fl-oz-us
- Keurig Dr Pepper Product Facts, Dr Pepper Zero Sugar 12 fl oz: "Contains approx. 41mg caffeine". www.kdpproductfacts.com/product/a0e3h000003LK0ZAAW/dr-pepper-zero-sugar-12-fl-oz-us
- Red Bull US, How much caffeine is in a can of Red Bull Energy Drink? 80 mg per 8.4 fl oz, 114 mg per 12 fl oz, 151 mg per 16 fl oz, 198 mg per 20 fl oz. www.redbull.com/us-en/energydrink/questions/how-much-caffeine-is-in-a-can-of-red-bull-energy-drink
- Monster Energy US, Original Green: 160 mg caffeine, "Caffeine content based on 16 fl oz". www.monsterenergy.com/en-us/energy-drinks/monster-energy/original-green/
- Monster Energy US, Zero Sugar: 160 mg caffeine, "Caffeine content based on 16 fl oz". www.monsterenergy.com/en-us/energy-drinks/monster-energy/zero-sugar/
- CELSIUS, Essential Facts: CELSIUS and CELSIUS Vibe contain 200 mg of caffeine per can; no more than two 12 oz cans a day recommended. www.celsius.com/essential-facts/
- 5-hour ENERGY, Product Information: Regular Strength shots contain about as much caffeine as 8 ounces of the leading premium coffee, Extra Strength about as much as 12 ounces. No milligram figure is given. 5hourenergy.com/pages/faq
Sources checked October 19, 2026.