Weight Loss Percentage Calculator
Calculate the percentage of weight lost between two measurements.
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Result
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Formula
Calculates the relative weight change to track progress toward overall goals.
Worked Example
Weight Loss Percentage
- Formula: % Change = [(Initial Weight - Current Weight) / Initial Weight] × 100
- A 5% to 10% weight loss has been clinically shown to significantly improve markers like blood pressure and cholesterol
- A healthy rate is typically 0.5% to 1% of body weight per week
- Percentage tracking helps focus on the trend rather than short-term scale fluctuations
Always use the same scale and time of day for consistent tracking.
You can also calculate changes using our BMI Calculator or Calorie Calculator.
Frequently Asked Questions
Why track percentage instead of pounds/kg?
Percentage provides perspective. A 10-pound loss is very different for someone who starts at 150 pounds vs 300 pounds. Percentage levels the playing field.
How much weight loss is significant?
Clinical studies show that losing just 5% of your initial body weight significantly reduces your risk for chronic diseases like diabetes and heart disease.
What is a healthy weekly rate?
A common goal is 0.5% to 1% of your body weight per week, which for most people is about 0.5 to 1kg (1-2 lbs).
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