BMI 18.5–24.9 translated into kilograms
Ideal Weight Calculator
If you take adult BMI bands 18.5 and 24.9 and a height of 172 cm, the matching weight range is about 54.7–73.7 kg. That is a back-solve of BMI, not an “ideal” in the magazine sense, and not medical advice. Athletes, pregnant people and many Indian body types will sit outside it and still be fine.
A screening number, not a diagnosis
Hostel medical forms in Manipal and gym posters in Ludhiana still print a single ideal weight. IndiaKit prints a range from WHO-style adult BMI instead of a Hamwi or Devine single point, and says so. It shares height with the BMI tool’s default (172 cm) on purpose.
The estimate we use
Low kg = 18.5 × (height_m)². High kg = 24.9 × (height_m)². Height 172 cm → 1.72 m → about 54.7–73.7 kg.
Some Indian clinicians discuss a lower overweight cut-off. This page does not switch that table. Follow the clinic in front of you.
Waist, glucose and blood pressure are more useful than chasing 54.7 kg. See a registered medical practitioner for decisions.
172 cm height on a Manipal hostel form
A 172 cm student is told to write an “ideal weight.” The calculator offers 54.7–73.7 kg from BMI 18.5–24.9. The campus doctor still looks at waist and family history; the form just wanted a range.
See a clinician if a number worries you
Not medical advice. Adult BMI back-solve only. Not for children. Not a body-fat measurement (see the body-fat tool, also not a diagnosis).
Common questions
Why a range instead of one number?
Because BMI itself is a band. A single “ideal” kilogram is a fashion claim, not a clinical one.
I am 80 kg at 172 cm. Is that automatically unhealthy?
This page will show you sit above 73.7 kg on the BMI band. That is not a diagnosis. Muscle, oedema and ethnicity all matter. Speak to a clinician.
Do you use Devine or Robinson formulas?
No. Those single-line formulas are used in some drug-dosing contexts by professionals. This consumer page uses BMI 18.5–24.9 only.