FREE · HEALTH & FITNESS CALCULATORS
Intermittent Fasting Planner.
Plan 16:8, 18:6, 20:4, OMAD, 36-hour or 5:2 fasting: see when your fast ends, your eating window and a weekly rhythm.
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How to use Intermittent Fasting Planner
Choose a method and the time your last meal ends. For 5:2, pick your two low-calorie days.
How it works
The fast ends at the last meal plus the fasting hours; the eating window is the rest of the 24 hours.
Example
With 16:8 and a last meal ending at 20:00, the fast ends at 12:00 the next day and the eating window runs from 12:00 to 20:00.
Questions about Intermittent Fasting Planner
Is Intermittent Fasting Planner free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
Not suitable in pregnancy, under 18, with eating disorders or diabetes medicines without medical advice. Everything is calculated in your browser; nothing you type is uploaded. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.