Weight Loss Timeline Calculator

How the calculation works

Weeks = weight change / average kg per week. This is a linear scenario, not a physiological forecast.

Inputs

• Weight, kg
• Height, cm
• Age, years
• Target weight, kg
• Assumed rate, kg/week

Calculation details

An adult estimate, not for children, pregnancy, or a personal treatment plan. Discuss results with a clinician or dietitian when managing illness or changing your diet.

This does not prescribe calories or guarantee a rate. Water, body composition, metabolic adaptation, and health alter progress; targets below BMI 18.5 are not calculated.