Ideal Weight Calculator (Imperial)

Imperial Ideal Weight Calculator

Our imperial ideal weight calculator helps you determine the optimal body weight based on your height in feet and inches. The calculator uses the proven Devine formula to accurately calculate ideal weight for both men and women using imperial measurements.

Imperial Weight Calculation Formula

The calculator applies the Devine formula in kilograms first, then converts the result to pounds:

• Men: 50 kg + 2.3 kg × (height in inches - 60), converted to lbs
• Women: 45.5 kg + 2.3 kg × (height in inches - 60), converted to lbs

This formula was originally developed for medication dosage calculations but has gained widespread acceptance for determining healthy body weight targets. The calculator computes the exact kilogram value and then converts it to pounds (1 kg ≈ 2.20462 lbs) for display.

Benefits of Imperial Measurements

The feet and inches ideal weight calculator is especially useful for:

• Residents of the US, UK, and other imperial system countries
• People accustomed to measuring height in feet and inches
• Getting results in pounds for easy understanding
• Medical calculations in imperial system countries
• Converting between imperial and metric measurements

Healthy Weight Ranges in Pounds

Beyond ideal weight, understanding healthy weight ranges is crucial:

• Underweight: Below normal BMI range
• Normal weight: Corresponds to healthy BMI 18.5-24.9
• Overweight: Above normal range, BMI 25-29.9
• Obese: Significantly above normal, BMI 30+

Calculation Accuracy for Different Heights

The calculator provides accurate results for a wide height range:

• From 4 feet to 7 feet and beyond
• Precise inch-by-inch calculations
• Gender-specific formulas for men and women
• Automatic healthy weight range determination
• Both ideal weight and BMI calculations

Understanding Your Results

When using the imperial ideal weight calculator:

• Compare your current weight to the calculated ideal weight
• Consider the healthy weight range, not just the single ideal number
• Factor in your body composition and muscle mass
• Consult healthcare professionals for personalized advice
• Use results as a general guideline, not absolute targets

Ideal Weight by Height (ft/in) — Quick Reference

Who the BMI Scale Applies To

The WHO categories on this page are for adults aged 18 and over, and they are the same for men and women: sex does not enter the BMI formula and does not move the category boundaries.

Children and teenagers aged 5–19 are read differently. Their BMI is compared with a WHO reference for age and sex and expressed as a z-score (SDS; WHO publishes the same reference as percentile charts): overweight above +1 SD, obesity above +2 SD, thinness below −2 SD and severe thinness below −3 SD. At the top of that range the two scales meet — WHO notes that +1 SD equals a BMI of 25 at 19 years, and +2 SD equals 30. WHO BMI-for-age (5–19 years)

For older adults the WHO classification above draws no separate line by age. Other guidance does, for a different purpose: the ESPEN consensus on diagnosing malnutrition counts a BMI as reduced below 20 under the age of 70 and below 22 above it. On its own that is not a diagnosis: there it only counts alongside mandatory unintentional weight loss. It is a boundary inside a diagnostic criterion, not a healthy weight range, and this page does not apply it. ESPEN Consensus Statement, Clinical Nutrition, 2015