7 Brew Caffeine Calculator

✓ Prices verified: October 2026

Pick a drink and a size to see its caffeine, calories, and price — plus the price per 100 mg of caffeine, so you can compare the true cost of your buzz across the menu.

Drink Size

Caffeine and calorie figures are estimates compiled from stand menus and third-party data; prices vary by stand. Where caffeine is listed as a range, the calculator uses the midpoint and marks results as estimated.

Frequently asked questions

How is price per 100 mg of caffeine calculated?

We divide the drink's price by its caffeine content (in units of 100 mg). When caffeine is listed as a range, we use the midpoint and mark the result as an estimate.

Why do some drinks show no caffeine value?

Caffeine content is not published for every drink. Coffee drinks, energy drinks, and teas have the most complete data; fizz, smoothies, shakes, and kids drinks are typically caffeine-free.

Are these exact numbers?

No — caffeine and calories vary by preparation, and prices vary by stand. Treat the calculator as a comparison tool, not a lab measurement.