US product page; formulations in other markets can differ.
Estimated caffeine remaining over time
These figures apply CaffCalc’s exponential model to the adjusted 300 mg starting value. They are calculations, not measurements of caffeine in a particular person.
Calculated caffeine remaining from a 300 mg serving
Hours elapsed
3-hour half-life
5-hour half-life
7-hour half-life
0
300 mg
300 mg
300 mg
3
150 mg
197.9 mg
222.9 mg
5
94.5 mg
150 mg
182.9 mg
8
47.2 mg
99.0 mg
135.9 mg
10
29.8 mg
75 mg
111.4 mg
12
18.8 mg
56.8 mg
91.4 mg
With the central five-hour model, the estimate falls below 25 mg after approximately 17.9 hours. The faster and slower columns show why one fixed clearance time shouldn’t be treated as a personal fact.
Use this caffeine value
Use this amount in a calculation, or save the drink to your tracker on this device.
Here are some drinks in the same category with less listed caffeine. This compares caffeine only, not overall health benefits. Check each drink’s source note before choosing.
