Diet Coke

Diet Coke has approximately 46mg caffeine per 355ml. See the source, compare amounts per 100ml and add it to your caffeine half-life log.

Caffeine per serving

46mg / 355ml

Per 100ml

13mg

Source

The Coca-Cola Company · US · 2026-10-01

Amounts apply to the listed serving. Coffee and tea vary by recipe and preparation; branded products may vary by market. Prefer the label on your drink.