Matcha contains a significant amount of caffeine, generally ranging from about 19 to 44 mg of caffeine per gram of powder. A typical serving of matcha is between 2 to 4 grams, which means one cup of matcha tea can contain anywhere from approximately 38 to 176 mg of caffeine, depending on how much powder is used and how it is prepared

. On average, a standard cup of matcha contains around 60 to 70 mg of caffeine, which is somewhat comparable to or slightly less than a typical cup of coffee (which usually has about 100-140 mg of caffeine per cup)

. This caffeine content is higher than that of regular green tea, which usually contains about 20 to 90 mg per cup, depending on the type and brewing method

. In summary:

• Caffeine per gram of matcha: 19–44 mg
• Typical caffeine per cup (2–4 grams): 38–176 mg
• Average caffeine per cup: about 60–70 mg
• Coffee caffeine per cup (for comparison): 100–140 mg

Matcha's caffeine content varies based on factors such as the amount of powder used, the tea leaf quality, and brewing conditions