Energy drinks
How much caffeine is in Monster Energy?
160 mgListed amount per 16.9 fl oz / 500 ml (UK)
Monster lists 160 mg per 500 ml can in the UK. Other Monster products and markets can use different recipes and can sizes.
How long might it remain?
Using the calculator’s five-hour half-life model, this serving would take approximately 13.4 hours to fall below 25 mg. This is a mathematical estimate, not a measurement of your body.
Source: Monster Energy UK product information
Product formulations can change. Check the current package or menu for the serving you consumed.
Calculate with 160 mg