Skip to content

Home / Tools

Find the tool for what you want to do

Simple tools, grouped by stage of the journey. No sign-up needed to start.

What do you want to do?

Know my caffeine Find a tea instead of coffee Cut down on coffee Make my day easier

Start here

Three steps from coffee to tea

Not sure where to begin? Follow this path.

1Caffeine calculatorSee how much caffeine you get.2Coffee → tea converterGet an equivalent amount of tea.3Cutting-down planGet a day-by-day plan.

1

Know

How much caffeine you get and how drinks differ.

Caffeine calculatorTea, grams, water, temperature and time: get mg of caffeine.1 minOpen →Comparison toolPick any two drinks and get a table and a chart.1 minOpen →Caffeine in the bodyEnter your day's drinks and see approximate caffeine levels over time.2 minOpen →How you may feel after the Nth cupPick a drink and cups: caffeine amount, daily limit and what the sources say.1 minOpen →

2

Choose

Find a tea instead of coffee and compare prices.

Coffee → tea converterEnter your coffee and get an equivalent tea amount plus a few suggestions.1 minOpen →Tea finder quizFlavour, caffeine goal, time of day, milk, budget: get 3 teas and why.6–8 questionsOpen →

Price comparisonPrice per cup and per 100 mg of caffeine across brands and shops.1 minComing soon

3

Switch

A plan and support for the first weeks.

Cutting-down planA day-by-day plan based on your coffee intake; export to calendar or PDF.3 minOpen →Quit diaryDay streak, symptoms, notes and short tips.30 s a dayOpen →

4

Daily

Tools you use every day.

Daily tracker and limitAdd drinks and see your daily limit by profile. Stored in your browser.30 sOpen →Last cup timeEnter your bedtime and sensitivity to get an approximate last hour.1 minOpen →Brewing timerA timer by tea type with a weaker or stronger caffeine choice.Every brewOpen →

For website and blog owners

Embed the caffeine calculator on your own page.

About the numbers

Caffeine amounts are shown as approximate ranges. This is general information, not medical advice.

Caffeine in drinks Tea brands Tea library

Read more

Health and sleep

Is Decaf Coffee Caffeine-Free?

Decaf coffee has little caffeine, but not none: figures from a study (0–13.9 mg per 473 ml), the EU rule and who should care about the leftovers.

29 October 20263 min read Health and sleep

Tea During Pregnancy: A Guide to Your Daily Cup

Which tea is okay during pregnancy: the caffeine limit (up to 200 mg a day), black, green, matcha, decaf and herbal teas.

27 October 20264 min read Health and sleep

Caffeine and Sleep: What the Research Shows

How much caffeine shortens sleep and delays falling asleep: numbers from two meta-analyses (22 and 24 studies), the role of dose and timing, and the limits of the research.

26 October 20264 min read