Reverse BMI Calculator
Calculate the weight you need to reach a specific BMI (Body Mass Index) based on your height.
The Reverse BMI Calculator helps you determine the weight required to achieve a specific Body Mass Index (BMI). This is particularly useful when setting healthy weight goals.
Calculator Inputs
Enter height in cm (Metric) or inches (Imperial)
Normal BMI range is 18.5 - 24.9
Results
Enter values above to see your results
How It Works
Enter your height and the BMI you want to achieve. The calculator works backward from the standard BMI formula to find the corresponding weight.
Worked Examples
Targeting BMI 22 (Metric)
1.75 m= (175 cm)22= GivenWeight = 22 × (1.75)²= Apply1.75 × 1.75= 3.062522 × 3.0625= 67.4 kgTips & Best Practices
- •A healthy BMI is generally considered to be between 18.5 and 24.9.
- •Set realistic goals. Aiming for a BMI change of 1-2 points at a time is more sustainable.
- •Remember that muscle weighs more than fat, so BMI isn't the only measure of health.
Frequently Asked Questions
What is the formula for Reverse BMI?
Weight = Target BMI × (Height in meters)². For imperial, Weight (lbs) = (Target BMI × Height (in)²)/703.
What is a good target BMI?
For most adults, a BMI between 18.5 and 24.9 is considered healthy. However, age, muscle mass, and other factors play a role.
Guides & Articles
Beyond BMI: The Truth About Body Composition in 2026
BMI is a useful screening tool, but it's not a diagnosis. We explore Body Fat %, TDEE, and the metrics that actually define metabolic health.
The Data-Driven Pregnancy: Understanding Due Dates and Fertility Windows
Conception and pregnancy are biological processes governed by timing. We explain the math of ovulation windows and the Naegele's Rule for due dates.
The Science of Energy Balance: TDEE, BMR, and Metabolism
Why do diets fail? Because they ignore the baseline data. Learn how to calculate your energy needs and manipulate them for weight loss or muscle gain.
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