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Medium Diet Coke Price at McDonald's (2026) — Oklahoma

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Medium Diet Coke

$1.99Oklahoma

A Medium Diet Coke costs $1.99 at McDonald's in Oklahoma, United States (price last updated September 2026).

A Medium Diet Coke® at McDonald's costs $1.99 in the United States as of November 2026. It's available at around 471 McDonald's locations across the United States. Prices are sourced from delivery platforms and refreshed regularly. Check the full McDonald's menu or compare Save on Select Item prices on MenuPriceToday.

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