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An 8-ounce glass of iced tea typically contains 20 to 60 mg of caffeine, depending on the tea type and brewing method.

A 32-ounce (946 ml) serving of Coca-Cola Classic contains about 85 mg of caffeine, based on the standard 32 mg per 12-ounce can.

A 12 fl oz can of regular Pepsi contains 38 mg of caffeine, placing it between Coca-Cola Classic (34 mg) and Diet Coke (46 mg) on the soda spectrum.

A typical 8-ounce cup of hot chocolate contains 5 to 20 milligrams of caffeine, depending on the brand and recipe—far less than coffee but still.

A 32-ounce coffee typically contains 320 to 480 mg of caffeine, often hitting or exceeding the 400 mg daily limit the FDA considers safe for most.

A single 1-ounce espresso shot contains about 63 mg of caffeine, but amounts can range from 29 to 100 mg depending on the bean and brew.

An 8-ounce mug of brewed coffee contains about 95 mg of caffeine, though the amount ranges from 80 to 165 mg depending on brewing method and bean.

A 30-ounce serving of brewed coffee typically contains 356 to 375 mg of caffeine, which is near the 400 mg daily limit generally considered safe.

A 12-ounce (355-ml) can of Diet Coke contains 46 mg of caffeine according to Coca-Cola, roughly half the caffeine found in an 8-ounce cup of brewed.

Caffeine estimates for a McDonald’s Mocha Frappe vary by size and source, but the range is roughly 75–100 mg for a small and 85–130 mg for a medium.