🎯 Ideal Weight Calculator

Gender

Height (cm)

170 cm

Current Weight (kg)

Body Frame Size

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Average Ideal Weight (4 Formulas)

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By Formula:

Hamwi

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Devine

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Robinson

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Miller

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Current Weight

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Weight to Lose/Gain

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vs Your Weight

Formula Comparison

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Enter your height and gender to calculate ideal weight

About

About Ideal Weight Formulas

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Hamwi Formula (1964)

Men: 48kg + 2.7kg per inch over 5ft. Women: 45.5kg + 2.2kg per inch over 5ft. Originally developed for medication dosing calculations in clinical settings.

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Devine Formula (1974)

Men: 50kg + 2.3kg per inch over 5ft. Women: 45.5kg + 2.3kg per inch over 5ft. Popular in pharmacology and critical care medicine for drug dosing by ideal body weight.

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Robinson & Miller (1983)

Robinson (Men): 52kg + 1.9kg per inch over 5ft. Miller (Men): 56.2kg + 1.41kg per inch over 5ft. These formulas use slightly different multipliers derived from insurance actuarial data.

FAQ

Frequently Asked Questions

Common questions about EMI calculations

What is EMI and how does it work?

EMI (Equated Monthly Installment) is a fixed monthly payment made to a lender to repay a loan. Each payment consists of a principal component and an interest component. Early in the loan, the interest portion is higher; as the loan matures, the principal portion increases.

Which ideal weight formula is most accurate?

No single formula is universally "most accurate" — they were developed for different clinical contexts. The Devine formula is most widely used in pharmacology. For general health purposes, using the average of all four formulas (as shown in this calculator) provides a reasonable estimate. Body composition matters more than a specific number on the scale.

How does body frame size affect ideal weight?

People with larger bone structure naturally weigh more at the same height. A "large frame" person may have an ideal weight 10% higher than a "small frame" person at the same height. Wrist circumference is often used to estimate frame size: men with wrist > 7.5 inches = large frame; women with wrist > 7 inches = large frame.

Should I aim for exactly my ideal weight?

Ideal weight formulas give estimates, not precise targets. Focus on body composition (fat vs muscle ratio), health markers (blood pressure, blood sugar, cholesterol), energy levels, and physical fitness rather than matching a formula's output exactly. A person with more muscle may healthily exceed the "ideal" by 5-10 kg.

What is the difference between ideal weight and healthy weight range?

Ideal weight is a single number from a formula. Healthy weight range (from BMI 18.5–24.9) spans a wider band. For a 170cm person, the healthy range is roughly 53–72 kg. This acknowledges that health can be maintained across a range of weights, not just at one specific value.