Sunkist Zero Sugar has more caffeine than Arizona Green Tea on both counts: 19mg per 12 oz can against 7.5mg per 8 oz serving (23 oz can holds ~21.5mg), and about 2mg per fluid ounce against 1. The serving sizes differ, so the table below shows both ways of counting.
These are different categories of drink, which changes how the caffeine arrives. Energy drinks and sodas list an exact number because caffeine is a measured additive; brewed drinks vary with the beans and the brew, so their figures are compiled averages. The numbers here are the standard published values for each.
Arizona Green Tea vs Sunkist Zero Sugar: the numbers
| Arizona Green Tea | Sunkist Zero Sugar | |
|---|---|---|
| Caffeine per serving | 7.5mg per 8 oz serving (23 oz can holds ~21.5mg) | 19mg per 12 oz can |
| Caffeine per fl oz | 0.9mg | 1.6mg |
| Servings to reach 400mg (FDA context) | 53.3 | 21.1 |
Sources: Arizona Green Tea's figure is verified in our Arizona Green Tea caffeine guide against Arizona published figure / Caffeine Informer (source); Sunkist Zero Sugar's figure is verified in our Sunkist Zero Sugar guide against Caffeine Informer (source).
Which one should you pick?
Pick Arizona Green Tea when you want the lighter dose or a slower ramp, and Sunkist Zero Sugar when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.
For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.
Related reading
- Arizona Green Tea: the full caffeine guide
- Sunkist Zero Sugar: the full caffeine guide
- The verified caffeine database
FAQ
Does Arizona Green Tea or Sunkist Zero Sugar have more caffeine? Sunkist Zero Sugar: 19mg per 12 oz can versus 7.5mg per 8 oz serving (23 oz can holds ~21.5mg) for Arizona Green Tea.
Which is stronger per ounce? Sunkist Zero Sugar, at about 1.6mg per fluid ounce versus 0.9mg for Arizona Green Tea.
Comparing caffeine? The caffeine comparison tool puts hundreds of drinks side by side, and the caffeine curfew calculator can check your cutoff time for tonight.