By Zencalcy Editorial TeamLast reviewed About us
Up to 400 mg caffeine per day is considered safe for most healthy adults. This calculator shows your daily intake and whether you're within the recommended limit.
How much coffee you should drink per day.
total mg = Σ (size mg per cup × count)
| Symbol | Meaning |
|---|---|
| mg | Caffeine per cup and total per day |
2 × 120 mg + 1 × 50 mg (tea) = 290 mg total — within the 400 mg safe limit for most adults.
Continue with the Coffee Footprint Calculator, Coffee Kick Calculator, or the Coffee Ratio Calculator — or browse more coffee & tea tools and all cooking calculators.
Up to 400 mg per day for most healthy adults. Pregnant people should limit to 200 mg.
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Content updated: September 2026