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Caffeine Content Comparison

Item Avg. per Serving
(Milligrams of Caffeine)
Range
(Milligrams of Caffeine)
Coffee 80 60 – 170
Cola 45 30 – 60
Black Tea 40 20 – 90
Oolong Tea 30 12 – 55
Green Tea 25 8 – 35
White Tea 15 6 – 25
Notes:   * Serving size – 8 fluid ounces.
               ** The range of caffeine in coffee and tea will vary due to preparation method and plant variety.
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