Ideal Weight Calculator

Enter height in cm and pick a sex. For example, a 170 cm male's ideal weight is about 65.9 kg.

cm
Sex

Ideal weight

65.9 kg

Healthy range (±10%)
59.3 – 72.5 kg

Your ideal weight is about 65.9 kg (healthy range 59.3–72.5 kg).

An old formula made for drug dosing — treat it as a guide. Muscle, age and build shift the ideal.

How this was calculated
  1. By the Devine formula, 170 cm (Male) gives an ideal weight of 65.9 kg

How to use

  1. Enter your height in centimetres.
  2. Pick male or female.
  3. See the ideal weight with its ±10% range.

Ideal-weight formulas

Sex Formula (inches above 5 ft) Example
Male 50 + 2.3 × (in − 60) 170 cm → 65.9 kg
Female 45.5 + 2.3 × (in − 60) 160 cm → 52.4 kg

Examples

170 cm male: (66.9 − 60) × 2.3 + 50 = 65.9 kg, range 59.3–72.5.

155 cm female: (61.0 − 60) × 2.3 + 45.5 = 47.8 kg.

More: limits of the formula

Devine (1974) was made for drug dosing, not as a definition of health. Modern assessment combines BMI, waist and body-fat measures. If the number worries you, talk to a doctor.

Frequently asked questions

What is the ideal-weight formula?

Devine: men 50 + 2.3 × (inches − 60), women 45.5 + 2.3 × (inches − 60), where inches is height above 5 feet.

How is this different from BMI?

BMI judges your current weight; ideal weight suggests the target. Use both — see the BMI calculator.

What if I am under 5 feet?

The 5-foot value is used: 50 kg for men, 45.5 kg for women.

Does it apply to everyone?

No. Muscular or athletic people can be healthy above it. Treat it as a guide.

How is the healthy range set?

±10% of the ideal. For 65.9 kg the range is 59.3–72.5 kg.

Also searched as

ideal body weight · weight for my height