What is my ideal weight?

There is a healthy range rather than one number — the weights that keep your BMI between 18.5 and 24.9 for your height. The calculator shows that band plus a Devine-formula estimate.

How is ideal weight calculated?

The healthy range multiplies 18.5 and 24.9 by your height in meters squared. The Devine formula adds 2.3 kg per inch over 5 feet to a base of 50 kg (men) or 45.5 kg (women).

Is the ideal weight the same for men and women?

The healthy BMI range is the same; the Devine formula uses a slightly lower base for women.

Should I aim for the exact ideal weight?

No. Anywhere in the healthy range is fine, and muscle and frame shift what is right for you. It is a guide, not a target to obsess over.

Health & Fitness

Ideal Weight Calculator

There is no single "ideal" weight, but there is a healthy range. This shows the band that keeps your BMI in the normal zone for your height, plus a classic single-figure estimate from the Devine formula.

Your numbers

Result

Healthy minimum

56.66

Healthy maximum

76.26

Ideal weight (Devine)kg: 70.46

Ideal weight estimates
Method	Weight (kg)
Healthy minimum (BMI 18.5)	56.7
Healthy maximum (BMI 24.9)	76.3
Ideal weight (Devine formula)	70.5

The healthy BMI range

The most defensible answer is a range, not a number: the weights that put your BMI between 18.5 and 24.9. Multiply each cutoff by your height in meters squared. At 1.75 m that is 18.5 × 1.75² to 24.9 × 1.75² — about 56.7 to 76.3 kg. Anywhere in that band is a healthy weight for your height.

The Devine formula

When people want a single figure, the Devine formula is the classic: 50 kg (men) or 45.5 kg (women) for the first 5 feet of height, plus 2.3 kg for each inch above that. It was designed for medication dosing, not as a beauty standard — treat it as one reference among several.

Weight is not the whole story

None of these account for muscle, frame or body composition. A muscular person can sit above the "healthy" band and be perfectly fit, while someone inside it can carry excess fat. Use the range as a rough guide and look at waist measurement and body-fat percentage for a fuller picture.

Informational and educational result. Not a substitute for professional advice.

Frequently asked questions

Sources

WHO — BMI classification (healthy range 18.5–24.9)
Devine BJ (1974) — ideal body weight formula

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