Aisha K.
Mar 12, 2026
Clean layout and the results update instantly. Exactly what I needed for a quick planning check.
Health, Fitness & Wellness
Sum mg from each drink type vs ~400 mg/day adult guidance.
Add up caffeine milligrams from coffee, tea, and energy drinks. Estimates only—not a diagnosis or prescription.
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Smart analysis
Tailored to your live inputs and result—guidance only, not professional advice.
Treat this as a planning estimate
Primary result: Total caffeine = 325 mg. Re-run with optimistic and pessimistic inputs to understand the range—not just a single point.
Scenario studio
Capture two sets of inputs on this device, then see which outcome wins. Share either scenario with a link.
Scenario A
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Scenario B
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Private on this device only. Not a medical diagnosis or treatment advice — talk to a qualified clinician for health decisions.
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Plain-English guide
Confused by a field? Read the short definitions here while you use the tool.
Coffee cups
One-time or recurring costs that affect total money paid.
Mg per coffee
One-time or recurring costs that affect total money paid.
Tea cups
The “Tea cups” value used in this tool’s formula. Adjust it to see results update live.
Mg per tea
The “Mg per tea” value used in this tool’s formula. Adjust it to see results update live.
Energy drinks
The “Energy drinks” value used in this tool’s formula. Adjust it to see results update live.
Mg per energy drink
The “Mg per energy drink” value used in this tool’s formula. Adjust it to see results update live.
Add up caffeine milligrams from coffee, tea, and energy drinks. Estimates only—not a diagnosis or prescription. Sum mg from each drink type vs ~400 mg/day adult guidance. Example: 3 coffees (95 mg) + 1 energy (160 mg) → 445 mg total.
Sum mg from each drink type vs ~400 mg/day adult guidance.
Example: 3 coffees (95 mg) + 1 energy (160 mg) → 445 mg total.
Governing formula
Sum mg from each drink type vs ~400 mg/day adult guidance.
3 coffees (95 mg) + 1 energy (160 mg) → 445 mg total.
Example: set Coffee cups = 3, Mg per coffee = 95, Tea cups = 1, then read the result.
Coffee cups
The “Coffee cups” field. Default 3; typical range 0–10.
Mg per coffee
The “Mg per coffee” field. Default 95; typical range 50–200.
Tea cups
The “Tea cups” field. Default 1; typical range 0–10.
Mg per tea
The “Mg per tea” field. Default 40; typical range 10–80.
Energy drinks
The “Energy drinks” field. Default 0; typical range 0–5.
Mg per energy drink
The “Mg per energy drink” field. Default 160; typical range 80–300.
Health, Fitness & Wellness
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Community
See what others think about this tool, then leave your own rating to help improve CalculioHub.
4.8
out of 5.0
4 reviews
Aisha K.
Mar 12, 2026
Clean layout and the results update instantly. Exactly what I needed for a quick planning check.
Daniel R.
Feb 28, 2026
Very usable on mobile. Would love a save/export option later, but the math feels solid.
Priya S.
Feb 3, 2026
The FAQ section answered my questions before I even had to search. Smooth dark mode too.
Marcus L.
Jan 19, 2026
Simple inputs, clear outputs. This replaced three bookmarks I used to juggle.
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