Energy drinks · Monster
How much caffeine is in Monster?
A 16 fl oz can of Monster Energy has 160 mg of caffeine, as Monster states it on its own US website.
Checked 28 Oct 2026 on monsterenergy.com. Across the 13 Monster lines and sizes we checked: 140–300 mg per container.
One can at 75 kg: studies of caffeine and exercise use 3–6 mg per kg in one dose (225–450 mg at 75 kg). It's 40% of the FDA's 400 mg a day.
Every Monster line and size
Highest caffeine first. Open a row's flavours to see which ones share its caffeine.
| Caffeine level | One at your weight (75 kg) | Label source | |||||
|---|---|---|---|---|---|---|---|
Java Killer Brew15 fl oz can2 flavoursLoca Moca, Mean Bean | 300 mg | 20 | 75% | 1.3 cans | Very high | Below research doseIn the research range400 mg or moreWithin your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Java15 fl oz can6 flavoursMean Bean, Loca Moca, Dubai Chocolate, Salted Caramel, Café Latte, Irish Crème | 200 mg | 13.3 | 50% | 2.0 cans | High | Below research doseIn the research range400 mg or more89% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Energy16 fl oz can6 flavoursOriginal Green, Vanilla Shot, Strawberry Shot, Electric Blue, Orange Dreamsicle, Nitro Super Dry | 160 mg | 10 | 40% | 2.5 cans | Moderate | Below research doseIn the research range400 mg or more71% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Juice16 fl oz can7 flavoursPipeline Punch, Voodoo Grape, Strawberry Lemonade, Pacific Punch, Viking Berry, Bad Apple, Rio Punch | 160 mg | 10 | 40% | 2.5 cans | Moderate | Below research doseIn the research range400 mg or more71% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Rehab15.5 fl oz can4 flavoursTea + Lemonade, Peach Tea, Wild Berry Tea, Green Tea | 160 mg | 10.3 | 40% | 2.5 cans | Moderate | Below research doseIn the research range400 mg or more71% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Reserve16 fl oz can2 flavoursOrange Dreamsicle, Peaches n' Crème | 160 mg | 10 | 40% | 2.5 cans | Moderate | Below research doseIn the research range400 mg or more71% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Ultra Red White Blue Razz16 fl oz can1 flavourRed White Blue Razz | 160 mg | 10 | 40% | 2.5 cans | Moderate | Below research doseIn the research range400 mg or more71% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Zero Sugar16 fl oz can3 flavoursZero Sugar, Zero Sugar Vanilla Shot, Zero Sugar Strawberry Shot | 160 mg | 10 | 40% | 2.5 cans | Moderate | Below research doseIn the research range400 mg or more71% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Juice Mango Loco16 fl oz can1 flavourMango Loco | 150 mg | 9.4 | 38% | 2.7 cans | Moderate | Below research doseIn the research range400 mg or more67% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Ultra16 fl oz can16 flavoursZero Ultra (White Monster), Punk Punch, Blue Hawaiian, Vice Guava, Wild Passion, Strawberry Dreams, Sunrise, Violet, Peachy Keen, Fantasy Ruby Red, Paradise, Fiesta Mango, Watermelon, Rosá, Blue, Black | 150 mg | 9.4 | 38% | 2.7 cans | Moderate | Below research doseIn the research range400 mg or more67% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Lando Norris16 fl oz can1 flavourLando Norris | 145 mg | 9.1 | 36% | 2.8 cans | Moderate | Below research doseIn the research range400 mg or more64% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Lo-Carb16 fl oz can1 flavourLo-Carb | 140 mg | 8.8 | 35% | 2.9 cans | Moderate | Below research doseIn the research range400 mg or more62% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Ultra Red16 fl oz can1 flavourRed | 140 mg | 8.8 | 35% | 2.9 cans | Moderate | Below research doseIn the research range400 mg or more62% of your 225–450 mg range | monsterenergy.comchecked 28 Oct 2026 |
Your bodyweight
Caffeine studies use 3–6 mg per kg in one dose. Enter your weight and the table shows what one can or shot is for you. Worked out in your browser; nothing is sent or stored.
Adding coffee or a pre-workout? Use the full caffeine calculator.
Where the caffeine comes from
The brand's page names no caffeine source for:
- Monster Java Killer Brew, 15 fl oz can: total 300 mg · “300MG Caffeine 220 Calories 8G Protein Caffeine content based on 15 fl oz”
- Monster Java, 15 fl oz can: total 200 mg · “200MG Caffeine 220 Calories 8G Protein Caffeine content based on 15 fl oz”
- Monster Energy, 16 fl oz can: total 160 mg · “160MG Caffeine 230 Calories Caffeine content based on 16 fl oz”
- Monster Juice, 16 fl oz can: total 160 mg · “160MG Caffeine 190 Calories Caffeine content based on 16 fl oz”
- Monster Rehab, 15.5 fl oz can: total 160 mg · “160MG Caffeine 25 Calories 230MG / 10% Sodium Caffeine content based on 15.5 fl oz”
- Monster Reserve, 16 fl oz can: total 160 mg · “160MG Caffeine 120 Calories Caffeine content based on 16 fl oz”
- Monster Ultra Red White Blue Razz, 16 fl oz can: total 160 mg · “160MG Caffeine 10 Calories 0G Sugar Caffeine content based on 16 fl oz”
- Monster Zero Sugar, 16 fl oz can: total 160 mg · “160MG Caffeine 0 G Sugar 10 Calories Caffeine content based on 16 fl oz”
- Monster Juice Mango Loco, 16 fl oz can: total 150 mg · “150MG Caffeine 250 Calories Caffeine content based on 16 fl oz”
- Monster Ultra, 16 fl oz can: total 150 mg · “150MG Caffeine 10 Calories 0G Sugar Caffeine content based on 16 fl oz”
- Monster Lando Norris, 16 fl oz can: total 145 mg · “145 MG Caffeine 0 G Sugar 5 Calories Caffeine content based on 16 fl oz”
- Monster Lo-Carb, 16 fl oz can: total 140 mg · “140MG Caffeine 30 Calories Caffeine content based on 16 fl oz”
- Monster Ultra Red, 16 fl oz can: total 140 mg · “140MG Caffeine 10 Calories 0G Sugar Caffeine content based on 16 fl oz”
Compared with pre-workouts
Pre-workouts with 135–185 mg of caffeine in one serving, within 25 mg of Monster Energy, 16 fl oz can, in our ranking by dose.
- RYSE Godzilla 175 mg per serving
- Jacked Factory Wick Mode 150 mg per serving
- Optimum Nutrition Gold Standard Pre-Workout 175 mg per serving
- Transparent Labs LEAN 180 mg per serving
- Ascent Pre-Workout 150 mg per serving
What else is on the label
Amounts per container, as printed. An ingredient is graded only where we have a research dose for it; vitamins and minerals aren't graded here.
Monster Java Killer Brew, 15 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Java, 15 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Energy, 16 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Juice, 16 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Rehab, 15.5 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Reserve, 16 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Ultra Red White Blue Razz, 16 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Zero Sugar, 16 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Juice Mango Loco, 16 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Ultra, 16 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Lando Norris, 16 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Lo-Carb, 16 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Monster Ultra Red, 16 fl oz can (caffeine only)
The brand's page gives the caffeine for this line, and we didn't find its full facts panel there.
Questions
How much caffeine is in a can of Monster?
A 16 fl oz can of Monster Energy has 160 mg. The Monster lines we checked range from 140 to 300 mg.
Which Monster has the most caffeine?
Monster Java Killer Brew, 15 fl oz can: 300 mg.
How much caffeine is in Monster per fl oz?
8.8–20 mg per fl oz, worked out from each label's caffeine and the container's stated volume.
How many cans of Monster Energy add up to 400 mg?
2.5 cans of the 16 fl oz size. The FDA cites 400 mg a day as an amount not generally linked to negative effects for most healthy adults.
Where does Monster's caffeine come from?
Monster's pages state the caffeine without naming its source.