Enter the total number of calories in deficit per day and the total weight loss required to determine the days to lose that weight.
- Weight Loss Calculator
- Weight Loss Percentage Calculator
- Maintenance Calories Calculator
- Calorie Target Calculator
- Weight Loss Inches Calculator
- Weight Loss Pant Size Calculator
Weight Loss Time Formula
The following formula is used to calculate the total time required to lose a certain amount of weight at a caloric deficit.
T = WL * 3500 / CD
- Where T is the total number of days required to lose the weight
- WL is the desired weight loss in pounds
- CD is the calorie deficit per day. (Typically 250-750 for healthy weight loss)
To calculate the weight loss time, multiply the desired weight loss by 3500, then divide by the average calorie deficit per day.
Calorie Deficit Definition
A calorie deficit is defined as the number of calories below the number of calories your body needs per day to function that you are consuming. To learn more about maintenance calories, visit our calculator.
Weight Loss Time Example
How to calculate weight loss time?
- First, determine your desired weight loss.
For example, let’s say you wish to lose 10 total pounds.
- Next, determine your calories deficit.
Eating 500 calories less than normal will yield roughly 1 pound per week.
- Finally, calculate the weight loss time.
Calculate the number of days required to lose 10 pounds using the calculator or formula above.
FAQ
What is a healthy calorie deficit for weight loss?A healthy calorie deficit for weight loss is typically between 250 to 500 calories less than your maintenance calories. This range helps ensure steady, sustainable weight loss without negatively impacting your health.
How does the weight loss formula work?The weight loss formula calculates the time needed to lose a specific amount of weight by dividing the total calorie deficit required (total pounds of weight loss times 3500 calories per pound) by the daily calorie deficit. It provides a straightforward way to estimate how long it will take to reach your weight loss goal.
Can weight loss be predicted accurately using the formula?While the weight loss formula provides a good estimate, actual weight loss can vary based on factors like metabolic rate, changes in physical activity, and adherence to the calorie deficit. It’s a useful starting point, but adjustments may be needed based on your progress.
