Find out how many cups you have drunk in your lifetime, how much you have spent, and how much caffeine is flowing through your history.
This calculator estimates your daily, weekly, monthly, and annual coffee consumption and spending based on your drinking habits. It tracks the number of cups per day, the type of coffee (home-brewed, drip from a shop, espresso drinks, cold brew), and the cost per cup. It also estimates your total caffeine intake based on standard caffeine content per drink type (roughly 95mg per 8oz drip coffee, 63mg per espresso shot, 200mg per 16oz cold brew).
Enter the number of cups you drink per day, the type of coffee, and whether you make it at home or buy it. The calculator shows daily and annual caffeine intake, total yearly cups consumed, annual cost, and how much you would save by switching from shop-bought to home-brewed. It also projects the 10-year cost of your coffee habit with inflation adjustment. The Caffeine Calculator provides detailed caffeine metabolism tracking.
Moderate coffee consumption (3 to 5 cups per day, or up to 400mg of caffeine) is associated with several health benefits in large epidemiological studies. Research published in the New England Journal of Medicine and other journals has linked regular coffee consumption with reduced risk of type 2 diabetes, Parkinson's disease, certain liver conditions, and depression. However, caffeine affects people differently based on genetics (CYP1A2 gene variants determine whether you are a "fast" or "slow" caffeine metabolizer), age, medications, and tolerance. Pregnant individuals are advised to limit intake to 200mg per day. Coffee after 2 PM can disrupt sleep for many people, as caffeine's half-life averages 5 to 6 hours.