Daily How Much

A typical 8-oz cup of decaf coffee has 2–15 mg of caffeine, with the exact amount shifting by brand, bean, and how you brew it.

Most matcha made with 1–2 g of powder lands near 30–90 mg of caffeine, and a bigger scoop can push it higher.

An 8-oz mug of brewed coffee often lands near 80–100 mg of caffeine, with the final number shifting with bean type, grind, and brew style.

A 12-fl-oz can of regular Mountain Dew has 54 mg of caffeine in the U.S.

Most roasted coffee beans land around 10–20 mg of caffeine per gram, so an espresso dose often starts near 60–80 mg before brewing losses.

Most pregnant adults can keep caffeine at 200 mg per day or less from all sources, including coffee, tea, cola, chocolate, and meds.

Up to 400 mg a day suits many adults; pregnancy caps at 200 mg, and teens often do better with less.

A 12-oz (355 mL) can of Coca-Cola has 34 mg of caffeine in the U.S.

Most decaf teas land in the 2–5 mg caffeine range per 8-oz cup, with a few brews creeping closer to 10 mg.

A 12-oz can of Dr Pepper lists 41 mg of caffeine per serving.