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Latte vs Caramel macchiato: caffeine compared

Latte and Caramel macchiato carry the same caffeine per serving: 150 mg each. Per fluid ounce they are about the same: 9.4 mg/oz versus 9.4 mg/oz.

LatteCaramel macchiato
Serving16 oz (2 shots)16 oz
Caffeine per serving150 mg150 mg
Per fl oz9.4 mg9.4 mg
Share of 400 mg/day38%38%
Servings to reach 400 mg2.72.7
Hours until under 50 mg7.9 h7.9 h
Last one for an 11 PM bedtime · standard (50 mg)3:05 PM3:05 PM
Last one for an 11 PM bedtime · sensitive (25 mg)10:05 AM10:05 AM
Share of the 200 mg pregnancy limit75%75%

One serving of each, over 16 hours

0501001500h2h4h6h8h10h12h14h16h50 mg bedtime limitLatte · 150 mgCaramel macchiato · 150 mg

Common questions

Which has more caffeine, Latte or Caramel macchiato?

Neither: both have about 150 mg per serving.

Which is stronger per ounce, Latte or Caramel macchiato?

About the same: 9.4 mg per fl oz for Latte and 9.4 mg for Caramel macchiato. The difference per can or cup comes from serving size.

When should I stop drinking Latte or Caramel macchiato before bed?

For an 11 PM bedtime with a 50 mg limit and a 5-hour half-life: last Latte by 3:05 PM, last Caramel macchiato by 3:05 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.

Source — Latte: Starbucks — Caffè Latte nutrition (Grande), checked 2026-10-13.

Source — Caramel macchiato: Starbucks — Caramel Macchiato nutrition (Grande), checked 2026-10-13.

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