Caffeine Calculator – Track Your Daily Caffeine Intake and Safe Limits
The caffeine calculator tallies your daily caffeine dose from coffee, tea, energy drinks, and other caffeinated products. See instantly whether you're within safe daily limits or over them.
The European Food Safety Authority (EFSA) considers 400 mg of caffeine per day safe for healthy adults. For pregnant women, the recommendation is maximum 200 mg/day. The calculator shows caffeine content per drink and cumulative daily total.
How much caffeine is in different drinks?
One espresso contains about 60-80 mg caffeine, drip coffee (200 ml) about 90-120 mg, energy drinks (250 ml) about 80 mg, and black tea (200 ml) about 40-70 mg. Cola drinks have about 35 mg per 330 ml. The caffeine calculator automatically totals these amounts.
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Browse all tools →The caffeine calculator estimates your daily caffeine intake from different beverages and serving sizes. A useful tool for those wanting to track their caffeine consumption and its effect on sleep.
Select consumed beverages and serving sizes, and the calculator estimates total daily caffeine in milligrams.
- Calculate caffeine intake from coffee, tea, energy drinks, and other sources.
- Compare your daily intake to general recommendations.
- Estimate caffeine's duration of effect and when it clears from your system.
Caffeine's effect is individual – the same milligram amounts can feel very different.
- General recommendation for adults is up to about 400 mg of caffeine per day.
- Caffeine's half-life is about 5-6 hours – afternoon coffee can disrupt sleep.
- Caffeine tolerance builds with regular use.
Caffeine affects individuals differently and intake should be monitored especially by sensitive people.
- Pregnant women are recommended to limit caffeine intake – ask your doctor.
- Caffeine content varies by coffee bean and preparation method.
- The calculator is an estimation tool, not medical advice.