Bubble milk tea (boba) vs Matcha latte: caffeine compared
Bubble milk tea (boba) (16 oz) has 110 mg of caffeine, 45 mg more than Matcha latte (16 oz, 65 mg) — 1.7× as much per serving. Per fluid ounce, Bubble milk tea (boba) is the stronger drink: 6.9 mg/oz versus 4.1 mg/oz.
| Bubble milk tea (boba) | Matcha latte | |
|---|---|---|
| Serving | 16 oz | 16 oz |
| Caffeine per serving | 110 mg | 65 mg |
| Per fl oz | 6.9 mg | 4.1 mg |
| Share of 400 mg/day | 28% | 16% |
| Servings to reach 400 mg | 3.6 | 6.2 |
| Hours until under 50 mg | 5.7 h | 1.9 h |
| Last one for an 11 PM bedtime · standard (50 mg) | 5:19 PM | 9:06 PM |
| Last one for an 11 PM bedtime · sensitive (25 mg) | 12:19 PM | 4:06 PM |
| Share of the 200 mg pregnancy limit | 55% | 32% |
One serving of each, over 16 hours
Common questions
Which has more caffeine, Bubble milk tea (boba) or Matcha latte?
Bubble milk tea (boba) (16 oz) has about 110 mg versus 65 mg in Matcha latte (16 oz): 45 mg more, or 1.7× as much.
Which is stronger per ounce, Bubble milk tea (boba) or Matcha latte?
Bubble milk tea (boba): about 6.9 mg per fl oz versus 4.1 mg for Matcha latte. Serving size decides the total you actually drink.
How many Matcha latte servings equal one Bubble milk tea (boba)?
About 1.7 servings of Matcha latte (16 oz) match the caffeine in one Bubble milk tea (boba) (16 oz).
When should I stop drinking Bubble milk tea (boba) or Matcha latte before bed?
For an 11 PM bedtime with a 50 mg limit and a 5-hour half-life: last Bubble milk tea (boba) by 5:19 PM, last Matcha latte by 9:06 PM. Half-life varies from about 1.5 to 9.5 hours between people.
Method
Caffeine per labeled serving, from the same drink table every calculator here uses (FDA/USDA reference amounts and manufacturer labels; see caffeine content of every drink). Brewed drinks vary batch to batch, so read these as typical values. Decay uses a 5-hour average half-life with a 45-minute absorption ramp; cutoff = bedtime − 5 h × log₂(dose ÷ limit). Percentages use the FDA's 400 mg/day figure for healthy adults and the 200 mg/day limit ACOG gives for pregnancy.
Unverified — Bubble milk tea (boba): Varies by shop and tea base; no reliable reference value. Treat 110 mg as a rough estimate.
Source — Matcha latte: CSPI caffeine chart (Starbucks Matcha Latte, 16 oz grande), checked 2026-10-13.