Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Weight Loss
Intermittent Fasting Calculator
Calculates your eating window end time and per-meal calorie distribution based on your fasting protocol, first meal time, and daily calorie goal. Use it when starting 16:8, 18:6, or any time-restricted eating plan.
Fill in the required fields to see your result.
Weight Loss
Daily Calorie Deficit Calculator
Calculate the daily calorie deficit needed to reach a target body weight within a specified timeframe based on the simple rule that 1 kg of body fat β 7,700 calories. Use it for setting realistic weight-loss timelines and avoiding overly aggressive deficits.
Fill in the required fields to see your result.
Key differences
| Intermittent Fasting Calculator | Daily Calorie Deficit Calculator | |
|---|---|---|
| Category | Weight Loss | Weight Loss |
| Inputs required | 2 | 3 |
| Result | Last Meal Time (hour (24hr format)) | Daily Calorie Deficit Needed (calories) |
| What it does | Calculates your eating window end time and per-meal calorie distribution based on your fasting protocol, first meal time, and daily calorie goal. Use it when starting 16:8, 18:6, or any time-restricted eating plan. | Calculate the daily calorie deficit needed to reach a target body weight within a specified timeframe based on the simple rule that 1 kg of body fat β 7,700 calories. Use it for setting realistic weight-loss timelines and avoiding overly aggressive deficits. |