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Calculate Pounds to Lose from a Percentage Goal Percentage of a number

Change the values below to see the calculation update in real time.

I set a goal to lose % of my body weight. If I currently weigh lb…
How many pounds do I need to lose?

Incomplete data. Enter all required values to see the calculations.

Answer: You need to drop lb.

Type of calculation: Calculating the percentage value of a number (weight to lose).
How to use the calculator: Use the Basic Percentage Calculator (“What is A% of B?”). Enter the goal percentage 5 [A] and your current weight 80 [B]. It will figure out 5% of 80 lb.
The formula:
We want to find 5% of 80 lb.
Formula: (Percentage / 100) × Whole
Weight to lose = (5 / 100) × 80 lb = 0.05 × 80 lb = 4 lb
For informational purposes only.

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App updated: August 2026