Height-to-Weight (BMI) Lookup

Tool Guide

About the Height-to-Weight (BMI) Lookup Tool

This tool takes a height (cm) and, using the standard BMI (Body Mass Index) formula, instantly calculates the corresponding healthy weight range — showing the underweight, normal, and overweight thresholds for that height.

Key Features

1. One-Click Weight Range Calculation

Just enter a height in cm to get the weight ranges for underweight (BMI < 18.5), normal (BMI 18.5-24), and overweight (BMI > 24) in kilograms.

2. Based on the Standard International BMI Formula

Calculations use the standard BMI = weight(kg) / height(m)² formula solved for weight, so the results are broadly applicable.

3. Clear, Direct Results

Results are shown as "Height xxx cm / Underweight < xx kg / Normal xx-xx kg / Overweight > xx kg" — no manual conversion needed.

How to Use

Step 1: Enter your height in centimeters.

Step 2: The tool automatically calculates and displays the three weight ranges.

Step 3: Compare your current weight against the ranges to see which category it falls into.

Use Cases

Useful for a quick self-check before a physical exam, setting a fitness or weight-management goal, or general reference for healthy weight tracking.

FAQ

How are the weight ranges calculated?

Using the standard BMI formula (weight in kg ÷ height in m squared), with underweight, normal, and overweight corresponding to BMI < 18.5, 18.5-24, and > 24.

Can the result be used as a medical diagnosis?

No. This tool is for general reference only. Real weight-management decisions should also account for age, muscle mass, and body fat percentage — consult a doctor or nutritionist if needed.

Does height need to be precise to a decimal?

No, a whole number in centimeters (e.g. 170) is enough.

Does this weight range apply to children and teenagers?

This tool is based on adult BMI standards. For minors, refer to pediatric growth-chart standards instead.