Soft drinks
How much caffeine is in Pepsi?
38 mgListed amount per 12 fl oz / 355 ml (US)
Caffeine content for one standard US can. Pepsi notes that formulations can change, so check current packaging.
How long might it remain?
Using the calculator’s five-hour half-life model, this serving would take approximately 3.0 hours to fall below 25 mg. This is a mathematical estimate, not a measurement of your body.
Product formulations can change. Check the current package or menu for the serving you consumed.
Calculate with 38 mg