How much caffeine is in McCafé Iced Coffee (Medium)?
中文：麦咖啡冰咖啡（中杯）
Caffeine content
200 mg
Typical range: 180–220 mg
per 21 fl oz (621 ml)
About this drink
McDonald's McCafé Iced Coffee delivers solid caffeine — the medium has 200 mg, more than a Grande Starbucks Latte. The price-to-caffeine ratio is among the best in fast food coffee.
Ingredients: Iced brewed coffee, light cream, syrup options
When will it clear your system?
200 mg is substantial. A noon McCafé still has ~100 mg in your system at 5pm.
Based on caffeine's 5-hour half-life, a McCafé Iced Coffee (Medium) consumed at 2:00 PM drops below the sleep-safe threshold (~20 mg) by approximately 06:37 the same evening.
Where this fits in a daily limit
That's roughly 100% of the 200 mg pregnancy guideline and 50% of the 400 mg general adult daily limit. One drink uses most of a pregnancy-safe day.
See our pregnancy caffeine guide or half-life sleep math for the deep dive.
How it compares
| Drink | Caffeine |
|---|---|
McCafé Iced Coffee (Medium) McDonald's | 200 mg |
| Starbucks Iced Coffee (Grande) Starbucks | 165 mg |
| KFC Iced Coffee (Large) KFC | 140 mg |
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Learn more about SipNoteFrequently asked questions
How much caffeine is in a McCafé Iced Coffee (Medium)?
A 21 fl oz (621 ml) McCafé Iced Coffee (Medium) contains approximately 200 mg of caffeine. Actual values may range from 180 to 220 mg depending on preparation and source variation.
Is McCafé Iced Coffee (Medium) safe during pregnancy?
The current ACOG and NHS guideline is under 200 mg of caffeine per day during pregnancy. A single McCafé Iced Coffee (Medium) uses most of the daily pregnancy allowance. Always consult your obstetrician for personalized advice.
When should I stop drinking McCafé Iced Coffee (Medium) for sleep?
Caffeine has a 5-hour half-life. To have under 20 mg circulating at bedtime (the typical sleep-safe threshold), stop drinking McCafé Iced Coffee (Medium) about 17 hours before sleep. 200 mg is substantial. A noon McCafé still has ~100 mg in your system at 5pm.
McCafé Iced Coffee (Medium) vs Starbucks Iced Coffee (Grande) — which has more caffeine?
McCafé Iced Coffee (Medium) contains 200 mg per serving; Starbucks Iced Coffee (Grande) contains 165 mg per 16 fl oz (473 ml). McCafé Iced Coffee (Medium) is the stronger of the two.
Does McCafé Iced Coffee (Medium) keep you awake?
200 mg is high caffeine. For sleep-sensitive people, McCafé Iced Coffee (Medium) after noon may affect sleep onset and quality.
Caffeine values shown are typical for the listed serving size. Actual content varies by preparation, brewing method, batch, and brand reformulation. Not medical advice — consult a healthcare provider for personalized guidance.