TL;DR

Bucked Up Energy contains 300 mg of caffeine per 16 oz can (473 ml / 16 oz). That is about 3 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg). Concentration: 63.4 mg per 100 ml.

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Bucked Up Energy Caffeine Content by Serving

ServingVolumeCaffeinePer 100 mlLevel
16 oz can473 ml / 16 oz300 mg63.4 mgVery High

Source: caffeine figures from Caffeine Informer, accessed 2026-06-11. Values can vary by batch, location, and preparation; check the label or the source for the latest figures.

How Bucked Up Energy Compares to Coffee

At 300 mg per 16 oz can, Bucked Up Energy delivers about 3 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg). For a wider comparison across drinks, try the caffeine comparison tool or browse the full caffeine database.

When to Stop Drinking Bucked Up Energy Before Bed

With caffeine's median 5-hour half-life, a 16 oz can of Bucked Up Energy (300 mg) needs about 12 h 56 min to fall under 50 mg, the level where most people can fall asleep normally. That puts the last call at 9:00 AM (09:00) for a 10 PM bedtime and 10:00 AM (10:00) for an 11 PM bedtime. Individual half-lives range from roughly 2 to 12 hours, so treat these as a starting point.

The Bucked Up Energy sleep cutoff page has last-call times for four bedtimes, and the caffeine half-life calculator personalizes the curve to your metabolism.

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Frequently Asked Questions

A 16 oz can of Bucked Up Energy contains 300 mg of caffeine, per Caffeine Informer (accessed 2026-06-11). That is about 3 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg).
Yes, by most standards. The FDA's guideline for healthy adults is 400 mg per day, so a 16 oz can (300 mg) is already 75% of the daily limit.
Caffeine's median half-life is about 5 hours, so the 300 mg in a 16 oz can drops to roughly 150 mg after 5 hours and 75 mg after 10 hours. Individual half-lives range from about 2 to 12 hours depending on CYP1A2 genetics, medications, smoking, and pregnancy. Model your own curve with the caffeine half-life calculator.
For an 11 PM bedtime, have your last 16 oz can of Bucked Up Energy by 10:00 AM (10:00) to be under 50 mg of residual caffeine at lights out, assuming the median 5-hour half-life. See the full bedtime table on the Bucked Up Energy sleep cutoff page.

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Medical Disclaimer: Caffeine values are approximate figures from the cited public sources. Actual content may vary by batch, location, and preparation, and caffeine metabolism varies widely between individuals. This page is for informational purposes only and is not medical advice. The FDA guideline for healthy adults is up to 400 mg of caffeine per day; the recommended limit during pregnancy is 200 mg per day. Consult a healthcare professional for personalized guidance.