How long do you want to stay up?

hours

???

cups of coffee

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We calculate with 95 mg of caffeine per cup. Depending on your caffeine tolerance, this amount may vary. This value is calculated for someone with a normal tolerance. Be aware that the safe amount of daily consuption is about 400 mg (about 4 cups). Please do not take all your cups at once, it's a process! Take the cups intermittently.