Weight Loss Percentage Calculator
Calculate absolute and percentage weight change from starting and current weight with neutral gain/loss wording.
Enter or adjust the values above, then calculate.
Weight Loss Percentage: weight Change %
Calculate absolute and percentage weight change from starting and current weight with neutral gain/loss wording.
Inputs this tool uses
- Starting weight
- Current weight
What you get
Weight changed by 5.0 kg.
How to use the Weight Loss Percentage Calculator
- Enter starting weight, current weight.
- Select any method, activity level or option shown on this page, then choose Calculate.
- Read the main result together with the supporting values, method, assumptions and limitations below before using the estimate.
How this calculation works
Percentage weight change is the difference between current and starting weight divided by starting weight.
Example calculation
The sample values loaded into the calculator produce 6.3% loss. This example exists to show how the output is structured; replace the sample values with your own inputs for your calculation.
Assumptions and limitations
- Anthropometric formulas are estimates and can differ from direct clinical measurements.
- Results are educational screening/reference values and do not diagnose health conditions.
Sources and review status
Source set last verified 2026-09-25. No clinician review is claimed unless a real named reviewer is displayed.
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