Weight Loss Calculator

Your realistic weight loss timeline

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Full guide

How to Estimate a Weight Loss Timeline

Learn TDEE, calorie deficits, safe loss rates, and week-by-week projections so you can estimate a realistic weight loss timeline — free tool.

Read the guide

About Weight Loss Calculator

A science-based weight loss calculator that estimates how long it will take to reach your target weight. Enter your current stats and activity level to calculate your TDEE (Total Daily Energy Expenditure), then set a calorie deficit to see your projected timeline. Accounts for metabolic adaptation and provides week-by-week projections. Shows safe deficit ranges and macronutrient recommendations. 100% client-side.

Weight Loss Calculator Features

  • Weight loss timeline
  • Calorie deficit
  • TDEE calculation
  • Safe deficit range
  • Week-by-week projection
  • Goal date estimate
  • BMR calculation

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