BMI Weight Loss Calculator

Weight needed to reach a target BMI.

How the Math Works

The BMI Weight Loss Calculator determines your target weight by applying the Body Mass Index formula in reverse. BMI is calculated as weight in kilograms divided by height in meters squared (BMI = kg/m²). To find your target weight, the calculator rearranges this formula: target weight = target BMI × (height in meters)². For example, if you are 1.75 meters tall and want to achieve a BMI of 22, your target weight would be 22 × (1.75)² = 67.4 kg.

Practical Applications

To use this calculator, simply enter your current height and the BMI range you want to achieve (typically 18.5-24.9 for healthy weight). The calculator will instantly compute your target weight range without requiring your current weight. You can then use this target as a baseline for planning your weight loss journey, setting realistic goals, and tracking your progress toward a healthier weight.

Day-to-Day Use

Knowing your target weight helps transform abstract health goals into concrete numbers you can work toward. This information supports daily decision-making by helping you understand portion sizes, create balanced meal plans, and set realistic weekly weight loss targets (typically 0.5-1 kg per week). Throughout your weight loss journey, you can track your progress by comparing your current weight against your calculated target, making each step measurable and motivating.

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