Starbucks Doubleshot: 6.5 fluid ounces (US) [FL OZ.]
Starbucks Venti: 20 fluid ounces (US) [FL OZ.]
or 2.5 cups
or 591.5 mL
Sizes (from here):
Short - 8 oz.
The smallest size Starbucks offers, but you'll probably only get this size if you ask for it by name; anyone asking for a "small" will get a Tall, which is the smallest size for which the prices are actually on the menu. Only hot drinks can be served in the Short size.
Tall - 12 oz.
This is what you'll get if you ask for a "small" drink.
Grande - 16 oz.
This is the "medium" size. Pronounced "GRAWN-day."
Venti - 20 oz. hot, 24 oz. cold.
Pronounced "VENN-tee," and means "twenty" in Italian.
For some reason the iced (cold) Venti cups hold four more ounces; for this reason, Venti espresso drinks have an extra shot of espresso in them, and cost a few cents more than their hot equivalents.
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