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Ideal weight range calculator for Indian adults
The ideal weight range calculator takes your height in centimetres and returns a healthy weight range in kilograms, using the Asian-Indian body mass index (BMI) band of 18.5 to 22.9. NNWA uses this band, rather than the international one, because cardiometabolic risk rises at lower BMI values in South Asian populations.
Enter your height and this calculator returns a healthy weight range for an Indian adult, not a single target figure. The range runs from a body mass index of 18.5 at the low end to 22.9 at the high end, the band Indian clinical consensus treats as healthy for Asian-Indian adults. Anywhere inside it is a defensible place for your weight to sit; where you settle within it depends on your build, your activity and your history.
The Indian context matters because most ideal-weight formulas found online were built elsewhere, for other purposes. The Devine formula dates from 1974 and was devised to estimate drug doses, not to set health targets. International BMI bands, meanwhile, sit too high for South Asian bodies, in which diabetes and heart-disease risk climb at weights the Western scale still calls normal. This tool uses the band Indian practice actually works with.
Healthy weight range: Asian-Indian scale
Healthy range for this height
50.4 to 62.3kg
The weights at which body mass index sits between 18.5 and 22.9, the healthy band on the Asian-Indian scale. A range, deliberately: no single number is "ideal" for every frame.
The range assumes an adult of typical muscle mass. It is not written for athletes, pregnancy or anyone under eighteen, and reaching it is never worth a crash diet. Sustainable change is the entire discipline.
How weight targets are actually set01How the calculator works out your range
The method is deliberately simple. The calculator converts your height from centimetres to metres and squares it. The low end of your healthy range is 18.5 multiplied by your height in metres squared; the high end is 22.9 multiplied by the same figure. Both results are shown in kilograms.
Those two multipliers are the boundaries of the healthy body mass index (BMI) band for Asian-Indian adults: below the band you are classed as underweight, and above it is where overweight begins on the Indian scale. If you already know your weight, the BMI calculator runs the same arithmetic in the other direction and tells you where you sit today.
02Why a range is more honest than a single number
A single ideal weight implies a precision the science does not have. Two adults of the same height can differ in frame size, muscle, bone density and fat distribution, and both can be healthy at weights several kilograms apart. A range respects that; a lone figure invites you to chase a number that was never yours.
The most widely copied single-number method, the Devine formula, shows the problem clearly. It was published in 1974 as a tool for estimating drug doses in hospital pharmacology, and was never designed as a health target. Yet it survives in apps and wall charts as though it were one. NNWA prefers the range because a range is what the evidence actually supports.
03Why the Asian-Indian band, not the international one
The international BMI scale draws its healthy line noticeably higher than the Indian one, and for South Asian bodies that is a problem. At the same BMI, people of South Asian ancestry tend to carry more body fat, and more of it around the abdomen, than the European populations the original scale was drawn from. The consequence is that risk of type 2 diabetes and heart disease begins to rise while an international chart still reads normal.
The World Health Organization has acknowledged that lower cut-off points are appropriate for Asian populations, and Indian clinical consensus works to the tighter 18.5-to-22.9 band this calculator uses. Because scale weight says nothing about where fat sits, the waist-hip ratio calculator makes a useful companion measure.
04What this calculator cannot tell you
This range applies to adults with typical body composition, and to no one else. A committed lifter or a serious athlete can sit above the band while carrying very little fat, because BMI cannot tell muscle from adipose tissue. The band does not apply in pregnancy, where weight change follows its own clinical guidance. It is not valid for anyone under eighteen, whose healthy weight is judged against growth charts, not adult cut-offs.
And even within its intended audience it is a screening measure only: it flags whether your weight deserves a closer look, and nothing more. It cannot see blood pressure, blood sugar, lipids or fitness, all of which say more about your health than the number on the scale.
05From a number to a plan
Knowing your range is the easy part; moving towards it, or holding steady inside it, is where trained judgement earns its keep. A qualified nutrition counsellor starts not with the band but with the person: eating pattern, activity, sleep, medical history and the distance between where you are and where you want to be.
From there the work is energy balance, which the TDEE calculator and the calorie calculator can rough out, translated into meals someone will actually eat, week after week. That translation is a skill, and it can be learnt: NNWA's Diploma in Nutrition builds the foundations, and the weight management programme works through exactly this problem in depth. Both are skill-enhancement certificate programmes: they train you to plan diets and coach clients, not to practise clinical dietetics or claim dietitian registration.
This calculator gives a screening figure, not a diagnosis. It cannot account for your body composition, medical history or individual circumstances. If your weight sits outside the range, is changing without explanation, or worries you for any reason, take the question to a doctor or another qualified health professional rather than acting on a number alone.
What people ask about the ideal weight calculator
Expand any question to read the answer in full.
What is the ideal weight for my height in India?
There is no single ideal figure. For Indian adults, a healthy weight is any weight that puts your body mass index between 18.5 and 22.9, the Asian-Indian band. Multiply your height in metres by itself, then by 18.5 and by 22.9, and the two results in kilograms are the ends of your healthy range.
Why is the Indian healthy band lower than the international one?
People of South Asian ancestry tend to carry more body fat at a given body mass index, especially around the abdomen, than the populations the international scale was built on. Risk of type 2 diabetes and heart disease therefore rises at lower BMI values, and Indian clinical consensus caps the healthy band at 22.9 rather than the higher international ceiling.
Is the Devine formula accurate for Indian adults?
No. The Devine formula was published in 1974 to help estimate drug doses in hospital pharmacology, not to define healthy weight, and it was never validated as a health target for any population. For Indian adults it is doubly unsuitable, because it ignores the lower body mass index thresholds at which South Asian cardiometabolic risk begins to rise.
Does this range apply to athletes and people who lift weights?
Not reliably. Body mass index cannot distinguish muscle from fat, so a muscular adult can sit above 22.9 while carrying little body fat and being in excellent health. If you train seriously, treat the range as a rough reference only, and lean on measures of body composition and waist size. The waist-hip ratio calculator is one place to start.
What should I do if my weight falls outside the range?
Do not panic, and do not crash-diet. The range is a screening signal, not a diagnosis. Check where you sit with the BMI calculator, look at your waist measurement, and if the picture still concerns you, speak to a doctor or a qualified nutrition professional, who will read your weight alongside your history, blood work and lifestyle before recommending anything.
Can I use this calculator during pregnancy or for my child?
No. In pregnancy, weight gain follows its own clinical guidance and a pre-pregnancy band is not the reference to use. For children and teenagers under eighteen, healthy weight is assessed against age- and sex-specific growth charts, not adult bands. In both cases the right reference point comes from a doctor, not from an adult screening tool.
Turn the arithmetic into a skill
A figure is the first five minutes of a consultation. These programmes teach what a practitioner does with it.
Diploma in Nutrition
The foundation programme behind every number on this page: energy balance, Indian diets and how weight bands are used in practice.
Weight Management
Built around the exact problem this calculator surfaces: helping someone reach a healthy range and stay there.
Weight Loss Coach
For the coaching side: turning a target range into behaviour a client can sustain.
A figure is not a diet plan
Turning a screening number into a chart someone will actually follow (for their condition, their kitchen and their budget) is the skill the Diploma teaches.