UK · Energy drinks

How much caffeine is in Lucozade Alert?

160 mgCalculated from manufacturer table · 500 ml can32.0 mg per 100 ml, calculated from the listed serving

Lucozade Alert contains 32 mg per 100 ml, giving 160 mg in a 500 ml can.

Interactive serving

Adjust this serving

Choose a documented size, then change the quantity. The caffeine total and timeline update together.

ServingNumber of servingsAmount in mlScaled from the documented 500 ml serving; the source evidence label still applies.

Adjusted caffeine total160 mgBased on the selected listed serving.

Where this figure comes from

Source: Lucozade Alert support
Source type: Manufacturer
Market: UK
How we got the amount: Calculated from manufacturer table
Source reviewed: 23 October 2026

The serving total is calculated as 32 mg per 100 ml × 5.

Estimated caffeine remaining over time

These figures apply CaffCalc’s exponential model to the adjusted 160 mg starting value. They are calculations, not measurements of caffeine in a particular person.

Calculated caffeine remaining from a 160 mg serving
Hours elapsed	3-hour half-life	5-hour half-life	7-hour half-life
0	160 mg	160 mg	160 mg
3	80 mg	105.6 mg	118.9 mg
5	50.4 mg	80 mg	97.5 mg
8	25.2 mg	52.8 mg	72.5 mg
10	15.9 mg	40 mg	59.4 mg
12	10 mg	30.3 mg	48.8 mg

With the central five-hour model, the estimate falls below 25 mg after approximately 13.4 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.

Add to today’s trackerFind a lower-caffeine swap Add 160 mg to calculator Compare this serving Browse UK records

Same category, lower documented dose

Looking for less caffeine?

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.

Monster Energy