Caffeine Calculator

This caffeine calculator adds up how much caffeine you get through the day from the drinks you have, then shows how your total compares with the 400 mg a day that health authorities regard as moderate for most healthy adults. You enter how many cups of coffee and tea you drink, plus any energy drinks and colas, and the calculator multiplies each by its average caffeine content and totals them up. It then works out that total as a percentage of the 400 mg guideline, how much headroom you have left for the day, and roughly how many cups of coffee your intake adds up to. Caffeine is the most widely used stimulant in the world, and a moderate amount helps most people feel alert, but going well over your usual level can leave you jittery, anxious and unable to sleep. Seeing your day totalled in one number makes it easy to spot when an extra energy drink or a late long black would tip you over. The caffeine figures are averages, since the real amount depends on the brand, the cup size and how strong you make it, so treat the total as a useful estimate. The 400 mg marker is a general adult guideline: pregnancy is lower at about 200 mg, and children and sensitive people need much less. This tool is general information, not medical advice.

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366 mg is within the 400 mg general adult daily guideline, with 34 mg to spare.

Averages: coffee 95 mg, tea 47 mg, energy drink 80 mg, cola 34 mg. Actual amounts vary by brand and size. The 400 mg guideline is for healthy adults; pregnancy is about 200 mg. General information, not medical advice.