DIET PEPSI® 21oz costs $3.19 at KFC in United States, as last recorded on 1 Nov 2026.
KFC's DIET PEPSI® 21oz is priced at $3.19 in the United States right now (November 2026). That's about 0% above the typical KFC drink item — the 6th-most-expensive of 16 we track. It's available at around 497 KFC locations across the United States. Prices are sourced from delivery platforms and refreshed regularly. See how it stacks up across other chains, and track its price for free, on MenuPriceToday.
How this compares in Drinks
16 items tracked| This item | $3.19 |
| Drinks median | $3.19 |
| Cheapest — PEPSI® 16oz | $2.49 |
| Most expensive — PEPSI® 32oz | $3.59 |
| vs Drinks median | 0% |
Compare KFC prices across countries — Fast-Food Price Index →
Prices last updated 1 Nov 2026.
Similar KFC items by price
- 7 UP 21oz$3.19
- Diet 7 UP 21oz$3.19
- Mirinda 21oz$3.19
- PEPSI® 21oz$3.19
Sources & method
Prices come from delivery-platform menus (mainly Uber Eats in United States) and are refreshed about weekly. They are indicative: delivery-platform prices can differ from in-store prices, and each item shows the date it was last recorded. See the methodology and the editorial policy.
MenuPriceToday is not affiliated with KFC. Prices are indicative and may vary by location.