About ketones.fyi

On ketones.fyi, ketone readings are explained. Type in a number you got from a blood meter, from a urine strip or from a breath meter. You will see what it means, along with the matching value of the other two tests and the point at which a reading needs care.

What is on this site?

• You get a reading checker and four calculators covering ketosis by fasting hour, keto macros and net carbs, plus the glucose ketone index.
• Charts cover ketone levels, urine strip results, plus fasting hours.
• For common foods, the net carbs per serving come from USDA FoodData Central.
• Comparisons of ketone drinks and testing devices, based on their labels and stores.

The making of our numbers

All numbers come from a single model built on published studies and public data. The sources are listed in the editorial policy.

Contact

The people behind ketones.fyi can be reached by email at contact@ketones.fyi.