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Weight Loss Tracker

Weight Loss Calculator

Calculate the timeline and number of weeks needed to reach your target goal weight based on daily caloric deficits.

Weight Loss Planner

Enter your weight targets and choose your deficit parameter.

kcal/day

Estimating target intake? Check our Calorie Deficit Calculator.

Planning Your Weight Loss Journey

Creating a weight loss timeline can keep you motivated, but it's important to understand the biological factors involved. While a calculator uses mathematical formulas assuming 1 lb of fat = 3,500 calories, real-world weight loss is rarely completely linear.

As you lose weight, your body's energy requirements decrease because you carry less mass. This adaptation is called metabolic adaptation. Additionally, active lean mass and water weight fluctuate daily. To combat this, tracking trends over weeks rather than individual daily scale readings is highly recommended.

Key Practices for Sustainable Progress

  • Set realistic goals: Aiming for 1% of your total body weight loss per week is generally considered safe and sustainable.
  • Adjust targets as you go: Recalculate your calorie needs every 10–15 pounds lost to account for your lower metabolic baseline. Check your new numbers with our TDEE Calculator.
  • Incorporate strength training: Resistance exercise stimulates muscle tissue retention, ensuring that the majority of weight lost is adipose fat rather than lean tissue.

Frequently asked questions.

The duration of weight loss depends on the size of your daily calorie deficit. A standard deficit of 500 calories per day yields roughly 1 pound of weight loss per week. For instance, to lose 10 pounds, it takes approximately 10 weeks of maintaining a consistent 500-calorie daily deficit.
It is calculated by multiplying the weight you want to lose by 3,500 calories (the approximate energy stored in one pound of fat) and dividing by your daily calorie deficit. The formula is: `Days = (Weight to Lose in lbs * 3,500) / Daily Calorie Deficit`.
A safe, sustainable rate of weight loss is 1 to 2 pounds (0.45 to 0.9 kg) per week. Losing weight faster can lead to muscle loss, nutrient deficiencies, and fatigue, and increases the likelihood of regaining the weight later.