How much caffeine is in Chick-fil-A Iced Tea?

A Medium Chick-fil-A Iced Tea has 72 mg of caffeine.

That's about three quarters of a cup of brewed coffee, and 18% of the 400 mg a day the FDA cites for most healthy adults.

Source: chick-fil-a.com · checked 10 Nov 2026

When did you have it?

Had at 3 pm, about 25 mg is still in you at an 11 pm bedtime. That should not affect most people’s sleep.

Bedtime

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Sizes

Size	Volume	Caffeine	mg per fl oz
Small		45 mg
Medium shown above		72 mg
Large		100 mg

Source: chick-fil-a.com · checked 10 Nov 2026

Latest time to drink it

For an 11 pm bedtime, most people should finish a Medium Chick-fil-A Iced Tea by about 7:50 pm. The table works it out for other bedtimes and for how sensitive you are: it is the latest time to start one so that the caffeine left stays under the line all night.

Bedtime	Very sensitive under 25 mg	Average under 50 mg	Not very sensitive under 100 mg
9 pm	12:50 pm	5:55 pm	Any time
10 pm	1:50 pm	6:50 pm	Any time
11 pm	2:50 pm	7:50 pm	Any time
Midnight	3:50 pm	8:50 pm	Any time
1 am	4:50 pm	9:50 pm	Any time

For a Medium Chick-fil-A Iced Tea, average clearance (half-life 5 h), 8 hours of sleep. "Any time" means even one at bedtime stays under the line.

How long it lasts

The caffeine from a Medium Chick-fil-A Iced Tea peaks in your blood about 75 minutes after you start it, at roughly 61 mg. Half of it is gone in about 5 hours for an average adult; that ranges from roughly 3 to 7 hours, and longer in pregnancy or with some medicines.

Time after	3 hours	6 hours	9 hours	12 hours
Still in you	51 mg	33 mg	22 mg	15 mg

So one had at 3 pm leaves about 25 mg at 11 pm. How long caffeine lasts explains the curve.

How it compares

Chick-fil-A Iced Tea is stronger than 86% of the 38 teas we track, by caffeine per serving.

To reach 400 mg in a day you would need about 5½ of these.

Less caffeine

Yerba Mate 40 to 80 mg, 6 fl oz cup
Gold Peak Unsweetened Black Tea 50 mg, 18.5 fl oz bottle
Matcha 48 mg, 1 bowl, ITO EN

More caffeine

Bigelow American Breakfast Tea 60 to 90 mg, 1 cup
Bigelow Peak Energy Plus 75 mg, 1 cup
Sweet Tea 92 mg, 1 medium drink

FAQ

Is Chick-fil-A Iced Tea high in caffeine?

It is moderate. A Medium Chick-fil-A Iced Tea has 72 mg, which is 76% of the 95 mg in an 8 fl oz cup of brewed coffee.

How much caffeine is in a Small Chick-fil-A Iced Tea?

A Small Chick-fil-A Iced Tea has 45 mg of caffeine.

How much caffeine is in a Large Chick-fil-A Iced Tea?

A Large Chick-fil-A Iced Tea has 100 mg of caffeine.

Can I drink Chick-fil-A Iced Tea at night?

Earlier is better. Had at 7 pm, it leaves about 44 mg in an average adult at an 11 pm bedtime. The latest time for an 11 pm bedtime is about 7:50 pm.

How long does the caffeine in Chick-fil-A Iced Tea last?

It peaks about 75 minutes after you start it. Of the 72 mg, about 33 mg is still in you 6 hours later and 15 mg after 12 hours, for an average adult with a 5-hour half-life.

Does Chick-fil-A Iced Tea have more caffeine than a cup of coffee?

No. A Medium Chick-fil-A Iced Tea has 72 mg; an 8 fl oz cup of coffee has 95 mg.

Method and limits

The caffeine figure comes from chick-fil-a.com; recipes, brewing and batches vary, so a real serving can differ. The curves use a standard one-compartment model with an average 5-hour half-life and a sleep-friendly line of 50 mg; your own body may clear caffeine faster or slower. How it works has the details.

These are estimates for information, not medical advice.