Intermittent Fasting Calculator
Track Your Fasting and Daily Balance
The Amazfit Balance Smart Watch helps monitor heart rate, sleep, and activity during fasting periods. Features a stunning AMOLED display, GPS, and up to 21 days of battery life for all-day health tracking.
Shop Amazfit Balance 2About Intermittent Fasting Calculator
The Intermittent Fasting Calculator helps you plan a daily fasting window and eating window for popular Intermittent Fasting protocols like 16:8, 18:6, 20:4, 14:10, 12:12 and OMAD, or a custom schedule. Set your eating start time and you’ll get today’s timeline, a live countdown to the next phase, and a 7-day plan you can follow.
Intermittent Fasting can simplify meal timing, but total calorie intake and protein remain crucial for goals. Pair this tool with your TDEE and Calorie Deficit targets, then split calories across 2–3 meals in the eating window using the optional helper.
FAQ
- How do I use the Intermittent Fasting calculator?
Select a protocol (e.g., 16:8), set your eating window start, and click Generate Plan. You’ll see start/end times, status, and countdown. - Which Intermittent Fasting method should I pick?
Choose one you can stick to (16:8 and 14:10 are common). Consistency beats aggressiveness. - Does Intermittent Fasting itself burn fat?
Fat loss still requires a calorie deficit. Intermittent Fasting is a timing framework that can help adherence. - What should I consume while fasting?
Typically water, plain black coffee or unsweetened tea (near 0 kcal). Check what fits your plan. - Can I shift my eating window?
Yes—change the start time and regenerate the plan; the tool recalculates end time and the 7-day schedule.
Disclaimer
This tool is for education and planning only and is not medical advice. Intermittent Fasting may not be appropriate for everyone (e.g., certain medical conditions, pregnancy, history of disordered eating). Consult a qualified professional if unsure.