Coffee Brew Timer & Ratio

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Coffee to Water Ratio Calculator – Perfect Pour Over & French Press

Use the golden ratio for coffee brewing. Enter water volume or coffee weight to instantly get the right amount of grounds for your preferred strength.

Beverage brewing calculator coffee pour over ratio

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Coffee Ratio Calculator - Online Perfect Pour Over & French Press

Calculate coffee grounds and water needed for any brew method (SCA golden ratio). Adjust strength. Convert grams to tablespoons. Local only.

Calculator brew calculator coffee ratio

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Coffee Roast Profile Color Meter – Online Agtron Number Estimator

Select roast level (cinnamon, city, full city, etc.) and see approximated Agtron color value and bean temperature.

Cooking & Fermentation Agtron coffee roast

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Caffeine Half‑Life Tracker - Online Blood Level Visualizer

Visualize how caffeine decays in your body over time. Enter intake amount and see remaining caffeine at bedtime to optimize sleep. Uses standard 5-hour half-life.

Health & Fitness caffeine coffee half-life sleep tracker

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Coffee Extraction Estimator – Online TDS & Yield from Refractometer

If you have a refractometer reading, enter TDS and brew weight to get extraction yield. Dial in your pour‑over.

Calculator coffee extraction TDS

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Random Coffee Blend Name - Online Barista Fun

Invent a fancy coffee blend name with origin and tasting notes. Perfect for a fictional café menu. All local.

Fun blend coffee generator name