Calculate coffee brewing ratios with adjustable variables. Convert units between grams, milliliters, and ounces. Set and track brewing time with a built-in timer.
by Andrew Bangs★ 4.736 ratingsFood & DrinkFreeData updated 2026-09-12
Calculate dilution ratios for cleaning solutions with precise formulas. Save favorite ratios and access safety information. View step-by-step guides and manage calculations efficiently.
Calculate standard deviation, probable error, and error of the mean for surveying and civil measurements. Switch between imperial and metric units. Perform calculations for series of observations and single or combined accidental errors.
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Units across multiple categories including length, weight, temperature, and more. Input values and select units for instant conversion. No ads, no subscriptions, no internet required for basic functions.
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Track brews across methods like espresso, filter, AeroPress, French press, moka pot, cold , and Turkish. Log variables such as grind size, water temperature, and time. Save recipes and compare results to refine techniques.