Most 16-oz energy drinks land around 150–200 mg of caffeine, and the serving size line decides the true total.

A single espresso shot usually lands around 60–70 mg of caffeine, while a double often falls near 120–140 mg.

A typical 8-oz glass of brewed tea lands around 20–70 mg of caffeine, depending on tea type and how you brew it.

An 8-oz cup of filter coffee often lands at 80–140 mg of caffeine, and your beans, dose, and brew time push it up or down.

A standard 1-ounce espresso shot usually lands near 60–65 mg of caffeine, yet the number can swing based on dose, bean blend, and shot volume.

A Grande Pumpkin Spice Latte usually lands between 90–150 mg of caffeine, based on store recipe and espresso shots.

A 32-oz fountain cola often falls near 90–110 mg of caffeine, with syrup mix and ice choices shifting the total.

Most green tea bags brew about 20–35 mg of caffeine per 8 oz cup, with brand, water heat, and steep time changing it.

An 8-oz (240 ml) cup of brewed green tea usually has 25–35 mg of caffeine.

A “large” Diet Coke often lands near 115–125 mg of caffeine, since many large fountain cups are 30–32 oz.