What formula does the Healthy Weight Calculator use?

It uses the standard WHO normal BMI band: minimum weight = 18.5 × height in metres squared, maximum weight = 24.9 × height in metres squared. In US units, height is converted to centimetres first, then the same formula is applied.

Why does the Healthy Weight Calculator only ask for height, not weight?

This tool answers a different question than a BMI calculator: instead of scoring a weight you already have, it works out the full range of healthy weights for a given height using the fixed 18.5–24.9 BMI band.

Why does a taller height give a wider healthy weight range?

The BMI formula scales with height squared, so the same 18.5–24.9 BMI band spans more kilograms or pounds as height increases. A taller person's healthy range is both heavier and wider than a shorter person's.

Does the Healthy Weight Calculator work in feet and inches?

Yes. Switch the unit toggle to US and enter your height in feet and inches — the calculator converts it to centimetres internally before computing the range in pounds.

Is the Healthy Weight Calculator's result medical advice?

No. It gives a general estimate based on a standard BMI formula and does not account for muscle mass, bone density, age, or body composition. It is not a diagnosis — talk to a healthcare professional for personal guidance.

Is my height uploaded when I use the Healthy Weight Calculator?

No. The Healthy Weight Calculator runs entirely in your browser. The height you type is used only to compute the result on your device and is never sent to ArrayKit or anywhere else.

Healthy Weight Calculator Online

Find the healthy weight range for your height from the normal BMI band, right in your browser. A general estimate, not medical advice.

The Healthy Weight Calculator runs entirely in your browser. The height you enter never leaves your device and nothing is uploaded to ArrayKit. Results are a general estimate, not medical advice.

Open the BMI Calculator

About Healthy Weight Calculator

Healthy Weight Calculator finds the span of body weight that falls within the normal BMI band of 18.5 to 24.9 for your exact height. Enter your height once — no weight input needed — and switch between Metric (centimetres) and US (feet and inches) units to see the healthy weight range in kilograms or pounds. It is a quick way to see what a healthy weight looks like for your height before setting a target, comparing against a checkup, or tracking progress toward a goal. Taller heights carry a wider, heavier range because the underlying BMI formula scales with height squared. Everything computes instantly on your device — your height is never uploaded. This is a general estimate from a standard formula, not medical advice.

Features

Calculates the healthy weight range from height alone, using the WHO normal BMI band
Toggle between Metric (cm) and US (ft/in) units
Shows the range in kilograms for Metric and pounds for US units
Instant results as you type, with no page reloads
Copy a plain-text summary of your healthy weight range in one click
Clear error message for a missing or invalid height
Uses the same 18.5–24.9 BMI band shown by the BMI Calculator
Runs entirely in your browser — your height never leaves your device

How to use the Healthy Weight Calculator

Choose Metric or US units
Enter your height
Read the healthy weight range for that height
Copy the summary or adjust the height to compare ranges

Example

Input

175 cm

Output

Healthy weight: 56.7–76.3 kg

18.5 × 1.75² = 56.7 kg and 24.9 × 1.75² = 76.3 kg mark the normal BMI band for that height.

Common errors & troubleshooting

Healthy Weight Calculator shows an error even though a height was entered. — Make sure the height is greater than zero — in US mode, fill in at least the feet or inches field.
Range looks way too high or too low after switching units. — Switching between Metric and US keeps each unit's fields separate, so re-enter your height in the newly selected unit system.
Height entered in metres instead of centimetres gives a tiny range. — The Metric height field expects centimetres (e.g. 175, not 1.75) — the Healthy Weight Calculator converts to metres internally.
Range seems narrow for how tall someone is. — The range does widen with height, but it is bounded by the fixed BMI band of 18.5–24.9 — very short or very tall heights will always show a proportionally smaller or larger span.

Frequently asked questions

What formula does the Healthy Weight Calculator use?: It uses the standard WHO normal BMI band: minimum weight = 18.5 × height in metres squared, maximum weight = 24.9 × height in metres squared. In US units, height is converted to centimetres first, then the same formula is applied.
Why does the Healthy Weight Calculator only ask for height, not weight?: This tool answers a different question than a BMI calculator: instead of scoring a weight you already have, it works out the full range of healthy weights for a given height using the fixed 18.5–24.9 BMI band.
Why does a taller height give a wider healthy weight range?: The BMI formula scales with height squared, so the same 18.5–24.9 BMI band spans more kilograms or pounds as height increases. A taller person's healthy range is both heavier and wider than a shorter person's.
Does the Healthy Weight Calculator work in feet and inches?: Yes. Switch the unit toggle to US and enter your height in feet and inches — the calculator converts it to centimetres internally before computing the range in pounds.
Is the Healthy Weight Calculator's result medical advice?: No. It gives a general estimate based on a standard BMI formula and does not account for muscle mass, bone density, age, or body composition. It is not a diagnosis — talk to a healthcare professional for personal guidance.
Is my height uploaded when I use the Healthy Weight Calculator?: No. The Healthy Weight Calculator runs entirely in your browser. The height you type is used only to compute the result on your device and is never sent to ArrayKit or anywhere else.

Related tools

BMI Calculator — Calculate body mass index and see the healthy weight range for your height.
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Body Fat Calculator — Estimate body fat percentage with the US Navy tape measurement method.
BMR Calculator — Estimate your basal metabolic rate — the calories your body burns at rest.
Calorie Calculator — Estimate daily calories to maintain, lose or gain weight from your stats.
Lean Body Mass Calculator — Estimate lean body mass and fat mass from height, weight and sex.