Ideal Body Weight Calculator Explained

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Last updated: December 26, 2023

IBW – Ideal Body Weight Calculator

What is an ideal body weight calculator?

The ideal body weight (IBW) calculator is a simple tool for estimating an individual's ideal or best body weight based on gender and height.

What is an ideal body weight?

Ideal Body Weight (IBW) is a method for estimating a healthy weight range for individuals, primarily taking into account their gender and height. Its results can help you assess your health status and the weight-related risks of being underweight, overweight, or obese.

Chart of BMI, weight, and height classification

Here is a chart that displays the body mass index (BMI) based on metric and imperial height and weight units.[1]

BMI based on metric and imperial height and weight units.
Source: Wikipedia

Your ideal body mass should stay in the green area, a healthy body mass index defined by the World Health Organization.[2]

We strive to make our calculator apps as accurate as possible, but they cannot replace a professional doctor. Our website provides information for informational purposes, and it's not medical advice. Please consult your healthcare provider before making any decisions based on the results provided by our tool.

User Guide

This guide provides step-by-step instructions for using our calculator.

IBW – Ideal Body Weight Calculator

How do you use an ideal body weight calculator?

To find an ideal body weight using our calculator, follow these steps to get started:

  1. Check your preferred unit system.
  2. Choose your gender.
  3. Enter your height.

IBW Calculator - Required Information

Check and enter all required information.

When you fill in all the required information, our IBW calculator will calculate your ideal body weight. Since there are four different formulas for calculating the results, our calculator will provide a range instead of a single value.

IBW Calculator - Result

To find the result for a specific formula, please check the Formulas section, where we listed all the calculated results for each formula.

IBW Calculator - Ideal Weight Formulas

Table of ideal body weight results for each formula.

Calculation Features

Our calculator has some essential features to help you fill in your information and get the result as quickly as possible.

Type, Click, or Swipe

We developed the calculator to accept all interaction methods to speed up your information-filling process. In most input fields, you don't need to use the keyboard. You can use the mouse or finger to adjust the field value by swiping within a predefined range.

Assisted information-filling

More ways to adjust the value

Some calculators also offer a range of preset values, which you can quickly enter by clicking the associated button.

Preset Values

You can fill the field with preset values.

Metric or Imperial Unit

Each calculator has a unit switcher button right under the form. The calculator switches between the metric and imperial systems when you click or tap on it. All input values are converted to an appropriate target unit (e.g., cm to feet, in).

Health Calculator - Unit System Switcher

Convert values between metric and imperial systems.

Reload the form

Click the refresh icon or button under the form to calculate new information.

Health Calculator - Reload the form


Our calculator provides personalization features, allowing users to customize the user interface to match their preferences.

Change dark mode

By default, our calculator dark mode follows your system's preference. However, you can change it by opening the Settings menu and turning on/off the dark mode switch.

Health Calculator - Change Dark Mode

Open the Settings menu and toggle the dark mode switch.

Change theme color

Our calculator comes with several theme colors to match your preferences. You can change them by opening the Settings > Theme menu and selecting your favorite color.

Health Calculator - Change Theme Color

Open the Settings menu, open the Theme menu, and select a color.

IBW – Ideal Body Weight Calculator

IBW – Ideal Body Weight Calculator App

About this app

Our Ideal Body Weight (IBW) calculator is a simple tool that calculates your healthy weight range. Just choose your sex and enter your height to get the result.

App availability

You can use the calculator for free as a PWA web app online or install it locally on any modern operating system, including Android, iOS, Windows 11/10, and macOS.

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2 Sources

  1. ⬆️ Wikipedia Contributors. Body mass index. Wikipedia. Published March 18, 2024. Accessed March 22, 2024.
  2. ⬆️ World. A healthy lifestyle - WHO recommendations. Published May 6, 2010. Accessed January 12, 2024.