Fasting Calculator

There are different ways to practice intermittent fasting. Here are the most popular ones with simple examples:

You fast for 16 hours and eat within an 8-hour window.

Most people simply skip breakfast, eat lunch at 12 PM, and finish dinner by 8 PM. For example, you might have lunch at 1 PM, a snack at 5 PM, and dinner at 7:30 PM.

This method feels natural for many because it just shortens your eating window without cutting out foods you enjoy.

With this plan, you eat normally for 5 days and then eat lighter (around 500–650 calories) on 2 non-consecutive days.

For instance, you could eat normally Monday–Sunday, but on Tuesday and Thursday, you might have a light breakfast like Greek yogurt with fruit and a small soup for dinner.

The rest of the week, you eat your usual meals. This works well if you don’t want to think about fasting every day.

Here, you fast every other day, or eat just a small amount (about 25% of your regular calories) on fasting days.

For example, Monday you eat normally, Tuesday you have just 500–600 calories, Wednesday you eat normally again, and so on.

On eating days, you don’t restrict yourself, which makes the fasting days more manageable. Think of it like pressing a reset button every other day.