Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Weight Loss
Resting Metabolic Rate Calculator
Calculate your Resting Metabolic Rate using the Mifflin-St Jeor equation, with an optional body composition adjustment for more accuracy. Use it to understand the minimum calories your body needs at rest.
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
| Resting Metabolic Rate Calculator | Daily Calorie Deficit Calculator | |
|---|---|---|
| Category | Weight Loss | Weight Loss |
| Inputs required | 5 | 3 |
| Result | Resting Metabolic Rate (calories/day) | Daily Calorie Deficit Needed (calories) |
| What it does | Calculate your Resting Metabolic Rate using the Mifflin-St Jeor equation, with an optional body composition adjustment for more accuracy. Use it to understand the minimum calories your body needs at rest. | 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. |