Ideal weight calculator
Estimate an adult weight range from BMI thresholds.
Formula
Weight = BMI × height in meters²
Height: 5 ft 9 in · Lower limit ≈ 18.5×((5 ft × 12 in/ft + 9 in) × 0.0254 m/in)^2 · Upper limit (excluded) ≈ 25×((5 ft × 12 in/ft + 9 in) × 0.0254 m/in)^2
How to use
- Enter your height.
- Choose the matching unit.
- Read the kilogram range; the upper limit is excluded.
Examples
- At 2 m: 74 kg to below 100 kg.
- At 1.6 m: 47.36 kg to below 64 kg.
Frequently asked questions
Is there one ideal weight?
No. This shows a BMI interval, not an individual target.
Who can use this range?
Adults aged 20 or older; pregnancy and children need other assessment.
Does it account for muscle?
No. BMI does not distinguish muscle from fat.
Sources
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