Soda
Caffeine in A&W Root Beer
0mg
per 12 oz
0% of FDA daily max
Is that a lot?
A&W Root Beer is 0% of the FDA’s recommended daily maximum, in a single 12 oz.
A&W Root Beer
Green tea
Espresso
Red Bull
Coffee
FDA daily max · 400mg
Before bed
When can I drink A&W Root Beer and still sleep?
Your A&W Root Beer cutoff
You drink it at
Bedtime
A&W Root Beer · 0 mg · assuming an average ~5 h half-life
At bedtime
0 mg
close to optimal
Latest safe A&W Root Beer: 11:00 PM
How much caffeine is in A&W Root Beer?
A&W Root Beer is caffeine-free, carrying zero milligrams in its 12 oz can. The creamy, vanilla-rich flavor comes with 46 grams of sugar but no caffeine at all.
| Serving | Caffeine | Sugar |
|---|---|---|
| 12 oz | 0 mg | 46 g |
caffeine-free
Will A&W Root Beer affect your sleep?
With no caffeine, A&W Root Beer has zero impact on sleep from a stimulant standpoint. It's a safe choice for an evening soda, though the sugar is still worth keeping in mind.
Source: Manufacturer label