Coffee Caffeine: How Much Is Really in Your Day?
Cups are a poor measure of caffeine because brews differ so much. Multiplying a per-cup estimate by your count gives a clearer picture.
What is the Coffee Caffeine Calculator?
Caffeine varies by brew method and serving size, so this calculator multiplies typical per-cup figures by your cups per day. Figures are estimates for guidance, not laboratory measurements, and actual caffeine depends on bean, grind, and brew time. Use it to compare habits, not to set medical limits.
How to use it
- Enter how many cups you drink per day.
- Choose your usual brew method.
- Click Estimate Caffeine for your daily total.
Worked example
2 cups of drip coffee at about 95 mg each give a daily total of about 190 mg of caffeine.
How much caffeine is in 2 cups of drip coffee?
About 190 mg in total, at roughly 95 mg per cup, which is a light to moderate daily total.
Frequently asked questions
Why does cold brew score higher?
Cold brew is often served larger and steeped longer, so a single serving can carry more caffeine than a small espresso.
Is 400 mg a safe limit for everyone?
No. The 400 mg figure is a general guide for healthy adults, not a personal medical limit. Pregnancy, medication, and sensitivity change the picture.