☕ Caffeine Calculator
Find out if you've had too much coffee. (Spoiler: maybe.)
What this tool helps with
Your caffeine intake vs recommended daily limit
What you can enter
- How many caffeinated drinks today?: 3
- Main drink type: Coffee (95mg)
Why this page is useful
Find out if you've had too much coffee. (Spoiler: maybe.) This page loads fast, gives a direct answer, and then expands with useful context instead of burying the result under filler.
Frequently Asked Questions
FDA recommends no more than 400mg per day for adults — about 4 regular coffees.
Caffeine has a half-life of about 5-6 hours. That 3pm coffee is still going at 9pm.