CortexLit

CortexLit tool · Caffeine · Runs offline · No account

Caffeine mg Counter

Build a personal drink list with milligram values and total a day against your own ceiling.

← Back to the article · See the evidence

This tool gives general information based on the research summarised in How Much Caffeine Is Actually in Your Drink. It is not a medical device, does not diagnose, and does not replace advice from your clinician.

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Free vs Plus




Free (this page)
  • personal drink list with your own mg values
  • daily total and headroom
  • text export and print
  • all citations and cautions


Plus (optional, one-time)
  • calendar (.ics) cut-off reminders
  • unlimited share images
  • share card without the 'Made with CortexLit' footer


Checkout isn't live yet, so Plus is unlocked here with a local code. The check runs in your browser and can be bypassed; it is a placeholder for a real payment link.






Free tier: 1 share image per result.






Commercial disclosure: optional paid Plus tier; all evidence, cautions and the main result are free. No affiliate links, no sponsors.







What this is based on


Every output names at least one verified PubMed source. Identifiers were verified on 2026-10-11 in an earlier batch and carried over into this build; they were not re-queried here, and no retraction database was checked. Verification was at abstract level.


McCusker 2006
McCusker RR, Fuehrlein B, Goldberger BA, et al. Caffeine content of decaffeinated coffee. J Anal Toxicol. 2006;30(8):611-3. doi:10.1093/jat/30.8.611. PMID: 17132260.
PMID 17132260 · observational study · weight 0.5 · abstract level
Desbrow 2019
Desbrow B, Hall S, Irwin C. Caffeine content of Nespresso® pod coffee. Nutr Health. 2019;25(1):3-7. doi:10.1177/0260106018810941. PMID: 30392444.
PMID 30392444 · observational study · weight 0.5 · abstract level
Wikoff 2017
Wikoff D, Welsh BT, Henderson R, et al. Systematic review of the potential adverse effects of caffeine consumption in healthy adults, pregnant women, adolescents, and children. Food Chem Toxicol. 2017;109(Pt 1):585-648. doi:10.1016/j.fct.2017.04.002. PMID: 28438661.
PMID 28438661 · systematic review · weight 1.0 · abstract level


Limits: You supply the milligram values, so the output is only as good as your numbers. Measured contents vary by outlet, pod and batch; the decaf default of 7 mg sits inside the 0 to 13.9 mg range one study found.







Privacy


Inputs stay in this page's memory. There is no telemetry, no analytics call and no network request. Saving is opt-in, local to this browser, deletable, and unencrypted.