Intermittent Fasting Calorie Calculator
Determine your daily calorie budget and eating window meal targets for 16:8, 18:6, 20:4, and OMAD (One Meal A Day) intermittent fasting protocols.
🏃 Interactive Intermittent Fasting Calorie Calculator
Frequently Asked Questions
Do calories still matter during intermittent fasting?
Yes. Fasting creates a time-restricted eating window, but fat loss still requires an overall daily calorie deficit.
How many calories should I eat during a 16:8 eating window?
Divide your daily calorie deficit target (e.g. 1,600 kcal) across 2 or 3 balanced meals during your 8-hour window.
Does drinking black coffee break a fast?
Plain black coffee, green tea, and water contain 0–5 calories and will not break autophagic or metabolic fasting states.