Use this calculator to generate a broad reference estimate, not a personal medical target.
Inputs
This topic also has a deeper guide and a printable reference pack, so you can move from the live answer into the method, assumptions, and worked examples without leaving the topic cluster.
These are the main values the calculator uses. Keep the units consistent and, where relevant, match the assumptions explained in the related guide.
Choose the option that matches the setup you want to analyse.
Unit: cm
Enter the value using the unit shown on the field.
Use this calculator when you want a quick reference weight estimate from height using a common screening formula.
The result shows the estimated reference weight and identifies the formula family used so the output is easier to interpret responsibly.
Ideal body weight formulas are broad heuristics and should not be treated as a stand-alone health recommendation or diagnosis.
Estimate body mass index from height and weight using metric or imperial inputs, with screening-focused interpretation rather than medical claims.
Estimate basal metabolic rate from age, sex, height, and weight using the Mifflin-St Jeor equation with neutral, non-clinical presentation.
Turn a calorie target and chosen percentage split into daily protein, carbohydrate, and fat goals.
Estimate a daily hydration target from body weight, activity, and climate using a cautious planning-oriented approach.