Filter coffee vs Decaf coffee: which has more caffeine?
A cup of filter coffee has on average about 96× more caffeine than decaf coffee.
Per 100 ml: filter coffee has about 96× more caffeine than decaf coffee.
| Filter coffee | Decaf coffee | |
|---|---|---|
| Caffeine per cup | 80–107 mg | 1 mg |
| Volume | 237 ml | 237 ml |
| mg / 100 ml (average) | 40.5 | 0.4 |
| Cups to reach 400 mg a day (adult) | 4 | more than 20 |
Frequently asked questions
Which has more caffeine: Filter coffee or Decaf coffee?
A cup of filter coffee has on average about 96× more caffeine than decaf coffee.
How many cups of decaf coffee equal one cup of filter coffee?
Using average values, one cup of filter coffee (96 mg) equals about 96 cups of decaf coffee (1 mg). This is a guide, since both drinks vary by batch and preparation.
Which is better in the evening?
Decaf coffee has less caffeine per cup (about 1 mg versus about 96 mg for filter coffee). After 6 hours roughly half to a third of what you drank remains, but sensitivity varies a lot.
Try it
Sources and method
- Mayo Clinic: Caffeine content for coffee, tea, soda and more
- EUFIC: EFSA opinion on the safety of caffeine (2015)
Data checked 2026-10-24. Ranges are shown because studies report different numbers. General information, not medical advice.