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How Long Will It Take to Lose Weight Calculator + Online Solver With Free Steps

The online Lose Weight Calculator tells the exact duration of time needed to lose weight according to the set target. It takes basic information like age, gender, height, and current age.

The calculator provides a detailed guideline about the required time with the calorie intake according to the person’s activity level.

It is a health maintenance tool that can be used by patients and every person who wants to lose weight.

What Is a Lose Weight Calculator?

A Lose Weight Calculator is an online calculator specifically designed to determine the period required to achieve the desired weight based on a person’s physical characteristics, current weight, and activity level.

Persons whose weight is greater than the ideal weight, they are more prone to diseases. This can be evaluated using body mass index which specifies what should be the weight with respect to your height.

Losing weight is one of the most commonly observed problems. If one needs to lose the desired amount of weight, he may not know how long it will take.

Additionally, he may also don’t know the calorie intake limit and the way to quickly reduce the weight by changing the activity level. Therefore we present you with this advanced calculator that gives complete analysis to get your desired weight.

This calculator simply works in your browser with no installation and downloading. It is free of cost and everyone can use this handy tool.

How To Use the Lose Weight Calculator?

To use the Lose Weight Calculator, the user just need to enter the physical parameters such as age, height, and desired weight with the current weight, calorie intake, and activity level.

The calculator can be easily understood even if you are using it for the first time because it has mentioned labels with all the input buttons. The step-by-step procedure for using the calculator is given below.

Step 1

Select the gender of the target person in the ‘Gender’ box. Then enter the age of the person in the ‘Age’ box.

Step 2

Now insert the weight set as your target in the ‘Desired Weight’ tab and then put the present weight in the ‘Current Weight’ tab.

Step 3

Then enter your average calorie intake in its box and choose one of three available options that depict your activity level.

Step 4

Check the inputs and press the ‘Submit’ button for the solution.

Output

The result starts with giving the duration required for the target weight loss, then its progress graph. It also calculates the number of calories one should take to meet the target.

It gives a detailed calorie intake versus the time duration graph. Then the table describes calorie intake based on how active is the person and a graph that explains this table

Solved Examples

The solved examples are given below to show the usage of this calculator.

Example 1

An athlete has to participate in sprinting competitions and wants to lose some weight to fit for the competition. His current weight is 160 lb and he wants to lose 20 lb. How long will it take to lose this weight?

Solution

The athlete can use the lose weight calculator to find the duration to lose 20 lbs. He has to put the required input information in the calculator and will have the results.

Input Information

GenderMale
Age25 years
Height5’ 8”
Current Body Weight160 lb (pounds)
Target Body Weight140 lb (pounds)
Caloric Intake1933 Cal/d (dietary calories per day)
Physical Activity LevelModerately active

Nominal Required Regimen Duration

Intake 1933 Cal/d for 1 month 25 days to lose 20 lb with a moderately active activity level.

Weight Loss Progress

Figure 1

Caloric Intake To Maintain Body Weight

 WeightCaloric Intake
Current Body Weight160 lb3102 Cal/d (180 % of BMR)
Target Body Weight140 lb2908 Cal/d (169 % of BMR)
Ideal Body Weight151 lb3014 Cal/d (175 % of BMR)

Ideal Body Weight

151 lb (pounds)

Comparisons for Regimen Durations

DurationRequired Caloric Intake
2 weeks(not achievable)
1 month 1050 Cal/d (61% of BMR)  (not recommended)
1 month 1 day1120 Cal/d (65% of BMR)
1 month 25 days1933 Cal/d (110% of BMR)
3 months2362 Cal/d (140% of BMR)

Required Caloric Intake vs. Regimen Duration

Figure 2

Comparisons for Physical Activity Levels

Physical Activity LevelRequired Caloric Intake
Extremely Inactive (1 to 1.3)843 Cal/d (49% of BMR)  (not recommended)
Sedentary (1.4 to 1.6)1430 Cal/d (83% of BMR)
Moderately Active (1.7 to 1.9)1933 Cal/d (110% of BMR)
Vigorously Active (2 to 2.4)2604 Cal/d (150% of BMR)
Extremely Active (>2.4)5200 Cal/d (300% of BMR)

Required Caloric Intake vs. Physical Activity Level

Figure 3

Example 2

A woman is diagnosed with cardiac problems. The doctor advised her to reduce her weight since the problems arise due to being overweight. He advises losing 30 lb because her current weight is 190 lb. How long will it take to lose this weight?

Solution

A woman can easily calculate the duration of losing weight with the help of this calculator by inserting the required input information.

Input Information

GenderFemale
Age38 years
Height5’ 5”
Current Body Weight190 lb (pounds)
Target Body Weight160 lb (pounds)
Caloric Intake1700 Cal/d (dietary calories per day)
Physical Activity LevelModerately active

Nominal Required Regimen Duration

Intake 1700 Cal/d for 2 months 26 days to lose 30 lb with a moderately active activity level.

Weight Loss Progress

Figure 4

Caloric Intake To Maintain Body Weight

 WeightCaloric Intake
Current Body Weight190 lb2837 Cal/d (180 % of BMR)
Target Body Weight160 lb2597 Cal/d (165 % of BMR)
Ideal Body Weight131 lb2366 Cal/d (150 % of BMR)

Ideal Body Weight

131 lb (pounds)

Comparisons for Regimen Durations

DurationRequired Caloric Intake
1 month(not achievable)
1 month 27 days 1182 Cal/d (75% of BMR)
2 months 26 days1700 Cal/d (110% of BMR)
3 months1750 Cal/d (110% of BMR)
6 months2238 Cal/d (140% of BMR)

Required Caloric Intake vs. Regimen Duration

Figure 5

Comparisons for Physical Activity Levels

Physical Activity LevelRequired Caloric Intake
Extremely Inactive (1 to 1.3)713 Cal/d (45% of BMR)  (not recommended)
Sedentary (1.4 to 1.6)1245 Cal/d (79% of BMR)
Moderately Active (1.7 to 1.9)1700 Cal/d (110% of BMR)
Vigorously Active (2 to 2.4)2307 Cal/d (150% of BMR)
Extremely Active (>2.4)4654 Cal/d (300% of BMR)

 

Required Caloric Intake vs. Physical Activity Level

Figure 6

All the Mathematical Images /Graphs are created using GeoGebra

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