A 20-oz coffee commonly has 200–300 mg caffeine, and some cups range 120–450 mg based on beans and brewing.

Two teaspoons of matcha made from 4 g of powder typically land around 76–178 mg of caffeine, depending on the powder and how full each spoon is.

An 8-fl-oz serving of Coca-Cola has about 23 mg of caffeine.

A 20-ounce bottle of Diet Coke has about 77 mg of caffeine when you scale the brand’s 12-oz figure to 20 oz.

An 8-ounce mug of brewed coffee often has about 95 mg of caffeine, with many cups landing between 60 and 160 mg.

A 20-fluid-ounce bottle of Coca-Cola contains about 57 mg of caffeine.

A 20-oz bottle of Coca-Cola has 57 mg of caffeine, a smaller dose than most coffee drinks.

Two tablespoons of ground coffee holds around 120–150 mg of caffeine, and your cup varies with bean type and brew.

An 8-oz cold brew typically has 150–250 mg of caffeine, with strength shifting by beans, steep time, grind, and dilution.

One Regular Strength shot lists 200 mg of caffeine per bottle, while Extra Strength lists 230 mg.