Matcha contains between approximately 19 to 44 mg of caffeine per gram of powder. A typical serving of matcha is about 2 to 4 grams (roughly 1/2 to 1 teaspoon), which means a cup of matcha can have anywhere from about 38 mg to 176 mg of caffeine, depending on how much powder is used, its freshness, and brewing method

. On average, many sources cite around 30 to 32 mg of caffeine per gram of matcha powder, so a standard 2-gram serving contains roughly 60 to 64 mg of caffeine

. This is higher than most regular green teas, which usually contain 20 to 90 mg of caffeine per cup, but generally less than or comparable to coffee, which typically has about 95 to 140 mg of caffeine per cup

. In summary:

• Caffeine per gram of matcha powder: 19–44 mg (commonly around 30–32 mg)
• Typical caffeine per cup (2–4 grams powder): 38–176 mg
• Average caffeine per cup (2 grams): ~60–64 mg
• Coffee caffeine per cup: ~95–140 mg
• Regular green tea caffeine per cup: ~20–90 mg

Matcha's caffeine is absorbed more slowly than coffee's, providing a steadier energy boost without the typical caffeine crash