Health · Free & Accurate

Weight Loss Percentage Calculator

Calculate exact percentage of body weight lost between starting weight and current weight.

Weight Loss Percentage Calculator

Health
Starting weight
Current weight
Result
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Step-by-step explanation

    📐 Formula & Explanation
    Weight Loss % = ((Initial Weight − Current Weight) ÷ Initial Weight) × 100
    How it works

    Subtract current weight from starting weight, divide by starting weight, and multiply by 100.

    💡 Practical Example

    Starting weight 200 lbs, current weight 185 lbs: Lost 15 lbs. (15 ÷ 200) × 100 = 7.5% weight loss.

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    FAQ

    Questions about Weight Loss Percentage Calculator

    Weight loss percentage is calculated using the formula: ((Initial Weight − Current Weight) ÷ Initial Weight) × 100. For example, losing 15 lbs from 200 lbs is (15 ÷ 200) × 100 = 7.5% weight loss.
    A safe and sustainable weight loss rate is 1% to 2% of total body weight per week.