How much caffeine is in Mountain Dew?

02Mountain Dew by can and bottle size

Caffeine scales with the bottle, and the bottle sizes are where people lose count. PepsiCo prints the figure for each package: 34 mg in the 7.5 fl oz mini can, 72 mg in a 16 fl oz can, 91 mg in the 20 fl oz bottle and 109 mg in the 24 fl oz bottle. A whole 2 liter bottle works out near 302 mg, three quarters of the FDA's daily figure, if it is finished by one person in an evening.

400 mg a day is the FDA's figure for healthy adults, not a target. Calculated rows: maker mg ÷ fl oz × size.

03When should your last Mountain Dew be?

At 54 mg the curve crosses the 25 mg mark about 5 h 33 min after the last sip, so a can at 5 pm is mostly cleared by a 10:45 pm bedtime. The same drink from a 20 fl oz bottle starts at 91 mg and needs until about 1:25 pm to be finished for that bedtime. Use the size you actually drink in the calculator; it changes the answer by four hours.

04Last can by bedtime

Finish-by = the time that leaves under 25 mg at lights out (this site's planning line, not a clinical threshold), rounded down to 5 minutes. 6-hour line: Drake et al. 2013, where 400 mg six hours before bed still cut sleep by more than an hour.

05Mountain Dew next to coffee, cola and other cans

Brand rows: maker product facts, checked October 7, 2026. Other drinks: typical values from Mayo Clinic and USDA (data/caffeine.json). mg per serving, and servings differ in size.

Ounce for ounce, Mountain Dew is weaker than coffee: 4.5 mg per fl oz against roughly 12 mg for brewed coffee. It is stronger than cola (33 mg a can) and Dr Pepper (41 mg), which is why it tops most soda lists. Energy drinks start where Mountain Dew stops.

06Is 54 mg of caffeine a lot?

No, not for most healthy adults. The FDA cites 400 mg a day as an amount not generally linked to negative effects; one can is 14% of that, and it would take more than seven cans to reach it. PepsiCo's own FAQ describes a moderate day as two 8-ounce cups of coffee, two 20-ounce bottles of caffeinated soda, or one 16-ounce energy drink. Two 20 fl oz bottles of Dew are 182 mg.

For sleep the question is timing more than total. In the 2013 Drake trial, 400 mg taken six hours before bed still cut sleep by more than an hour. A single can is far below that dose, but the bottles and the energy versions are not, and they keep working into the evening.

Questions people ask

Does MTN Dew have more caffeine than coffee?

No. A 12 fl oz can has 54 mg; an 8 fl oz cup of brewed coffee has about 96 mg. Ounce for ounce coffee is more than twice as strong (about 12 mg per fl oz against 4.5). A 20 fl oz bottle (91 mg) comes close to one cup.

What drink has 200 mg of caffeine?

No single Mountain Dew. The strongest current one listed by PepsiCo is AMP Energy at 142 mg per 16 fl oz. A 12 fl oz Celsius has 200 mg, and two 20 fl oz bottles of regular Dew add up to 182 mg.

What soda has the most caffeine?

Among the sodas checked on this site, Mountain Dew Zero Sugar and Baja Blast Zero Sugar lead at 68 mg per 12 fl oz, then Baja Blast (59 mg), regular Mountain Dew (54 mg), Dr Pepper (41 mg) and cola (about 33 mg).

Can caffeine raise blood pressure?

It can raise it for a short time, especially in people who rarely have caffeine. This page covers timing for sleep only; if you have high blood pressure, ask a clinician how much caffeine suits you.