Tea (Tea) Caffeine Calculator
Estimate total caffeine (mg) from tea type, cups, and steeping time.
Input Data
Number of cups (240ml each).
Steeping time affects extraction.
Results
90
green 3 cups (normal) → 90 mg caffeine.
At a glance:Estimate total caffeine (mg) from tea type, cups, and steeping time.
Formula
Caffeine (mg) = per-cup caffeine × cups × steeping factor.
How to Use
- Pick the tea type and steeping time.
- Enter the number of cups.
- The calculator returns total caffeine and compares it to the 400mg daily limit.
FAQ
Lower than coffee?
Tea usually has less caffeine than the same amount of coffee, plus L-theanine that smooths the effect.
How is it different from tea-ratio?
tea-ratio sets strength; this works out caffeine amount.
Precision?
Integer mg.
Related Tools
References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.