Food · Utility calculator
Coffee Strength Calculator
Calculate brew ratio and optional extraction percentage for filter, espresso, French press, moka, or other coffee.
Instant result
Plain-English why
Copyable takeaway
What this means
Ratio works without TDS. Extraction only appears if dissolved solids are supplied.
Formula used
Brew ratio = beverage or water grams / dry coffee grams. Extraction = dissolved solids / coffee grams x 100.
Worked example
20g coffee, 320g water, and 1.25% TDS gives a 16:1 ratio and 20% extraction.
Common questions
Can I use this internationally?
Yes. Currency selectors are display-only unless a tool explicitly says otherwise; no currency conversion is performed.
How exact is the result?
It follows the published Technofatty formula for this tool, but real life can add fees, rules, timing quirks, and context.
Plain-English summary
A good coffee ratio is useful. Making it your whole personality remains optional.
This section translates the result into a short, direct takeaway rather than leaving the page at a bare number.
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