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Weight Loss Percentage Calculator

Use this weight loss percentage calculator to compare starting and current weight, then see pounds or kilograms lost and the percent change.

Use the same unit for both entries and, if possible, compare weigh-ins taken under similar conditions.

This weight loss percentage calculator provides a general estimate only and is not medical advice. It should not be used to diagnose a condition, judge recovery, or guide treatment on its own. If you are pregnant, under 18, recovering from illness, noticing rapid or unexplained weight change, or have a history of disordered eating, speak with a qualified healthcare professional before relying on the result.

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