Complete Guide to Ideal Weight Calculator and Devine Formula for Indians
What is ideal body weight?
Ideal body weight (IBW) formulas estimate a healthy weight range from height — originally developed for drug dosing and ventilator settings, now widely used for fitness goal-setting. There is no single perfect number: frame size, muscle mass, age and ethnicity all shift what is healthy for you. Master Calc's Ideal Weight Calculator shows Devine, Robinson, Miller and Hamwi results side by side.
For Indians, cross-check formula output with Asian BMI 18.0–22.9 on BMI Calculator — Western-derived ideal weight may still imply BMI above 23 for some heights.
Devine ideal weight formula
The Devine formula (1974) remains the most cited clinically:
- Men: 50 kg + 2.3 kg for each inch over 5 feet (60 inches)
- Women: 45.5 kg + 2.3 kg for each inch over 5 feet
Example — 5 ft 6 in woman (66 in, 6 in over 5 ft): 45.5 + (2.3 × 6) = 59.3 kg. Example — 5 ft 10 in man (70 in): 50 + (2.3 × 10) = 73 kg.
Robinson, Miller and Hamwi compared
Robinson typically gives slightly lower values than Devine. Miller is lower still for many heights. Hamwi uses different constants (men 48 kg + 2.7 kg/inch; women 45.5 kg + 2.2 kg/inch). Spread across formulas is normal — use the range, not one digit. Athletes with high muscle may healthily exceed upper range.
Enter height in Ideal Weight Calculator for all four estimates instantly.
Ideal weight for Indian adults
South Asian populations develop metabolic disease at lower BMI than Caucasian reference groups. A Devine "ideal" of 62 kg at 165 cm may yield BMI ~22.8 (normal on Asian scale) — good alignment. At 160 cm, same 62 kg gives BMI ~24.2 (overweight Asian) — formula may overshoot; prefer BMI cap 22.9 when setting goals.
Urban India sees both underweight (rural migration, inadequate nutrition) and overweight (refined carbs, sedentary IT jobs). Goal setting should include waist circumference and optional Body Fat Calculator — not vanity wedding-date crash target.
From ideal weight to calorie plan
Gap between current weight and ideal range informs timeline — not desperation. Losing 0.25–0.5 kg per week via 300–500 kcal deficit in Calorie Calculator beats losing 3 kg in a week of liquid fasting. BMR Calculator ensures deficit does not chronically starve resting metabolism.
Gaining toward ideal (underweight adults): modest surplus + strength training. Teenagers and elderly need doctor-led targets — do not apply adult Devine to growing children.
Limitations of ideal weight formulas
- Do not measure body fat — muscular person "over" ideal may be healthier than skinny-fat "at" ideal.
- Derived largely from non-Indian cohorts — BMI cross-check essential.
- Ignore bone structure — small vs large frame shifts healthy range.
- Pregnancy, postpartum and menopause change appropriate weight — obstetrician guides.
- Edema, ascites and medical conditions distort scale weight.
Worked examples by height
- Women 5 ft 2 in (62 in): Devine ≈ 50.1 kg
- Women 5 ft 5 in (65 in): Devine ≈ 57.0 kg
- Men 5 ft 7 in (67 in): Devine ≈ 66.1 kg
- Men 6 ft 0 in (72 in): Devine ≈ 77.6 kg
Verify each against BMI: weight ÷ height(m)² should ideally fall 18–22.9 for Indian metabolic risk planning.
Sustainable weight change in Indian context
Festival seasons, family pressure to eat, vegetarian protein planning and long commutes challenge consistency. Set process goals: 8,000 steps, three gym sessions, protein at each meal — not only scale number. Hydration via Water Intake Calculator supports exercise in heat.
Women with PCOS or irregular cycles — see Menstrual Cycle Calculator for tracking; weight and hormones need gynaecologist partnership. Pregnant women use Pregnancy Due Date Calculator — not pre-pregnancy ideal weight as pregnancy target.
Step-by-step: using Ideal Weight Calculator
- Enter height in cm or feet-inches accurately.
- Review Devine, Robinson, Miller, Hamwi range.
- Check current BMI on BMI Calculator with Asian categories.
- Pick realistic target inside formula range AND BMI ≤22.9 if possible.
- Calculate TDEE and deficit/surplus in Calorie Calculator.
- Track monthly weight trend — not daily noise.
- Adjust target with doctor if metabolic conditions present.
Frame size and body composition context
Small-frame Indian women at lower end of ideal weight range may still carry adequate fat for hormonal health — dropping below Devine minimum with amenorrhoea is harmful. Large-frame or former athletes may exceed formula upper bound while metabolically healthy — Body Fat Calculator clarifies.
Joint pain at higher body weight improves with even 5% loss — knees thank you on stair-climbing Mumbai local stations. Set interim goals: first 5 kg, then reassess with BMI Calculator and doctor before chasing single Devine digit from college days two decades ago.
Wedding-season pressure and realistic timelines
Bridal weight-loss culture in India often targets arbitrary dress sizes in six weeks — crash diets, laxative teas and sauna suits risk gallstones, hair fall and rebound gain after photos. If Devine ideal is 8 kg below current weight, at 0.5 kg weekly loss you need four months — start early or accept alterations, not starvation.
Grooms face similar pressure for reception photos. Ideal weight formulas do not account for camera angles — health markers (energy, sleep, lipids) beat single scale digit for life after wedding.
Postpartum and breastfeeding weight
Pregnancy weight gain varies — 10–14 kg is common guidance for normal BMI Indian women but individual. Postpartum loss should be gradual; breastfeeding increases calorie needs — do not apply pre-pregnancy ideal weight deficit while nursing without lactation consultant and obstetrician approval. Use Pregnancy Due Date Calculator antenatal context separately from postpartum goals.
Diastasis recti, C-section recovery and pelvic floor issues limit early exercise — physiotherapist clearance before aggressive ab workouts.
Related calculators
BMI Calculator · Calorie Calculator · BMR Calculator · Body Fat Calculator · Water Intake Calculator · Browse Health & Fitness calculators.
Clinical uses of ideal body weight
Hospitals use ideal weight formulas for ventilator tidal volume settings, chemotherapy dosing and anaesthetic calculations — precision matters medically at extremes. For home fitness, ±3 kg around Devine midpoint is reasonable target band. Document starting point and monthly trend; doctor reviews if losing toward ideal while on diabetes or blood pressure medicines — doses may need adjustment as weight falls.
Ayurvedic constitution concepts (prakriti) describe body types differently from Western formulas — integrate traditional wellness with evidence-based screening via BMI and lipids, not instead of them, when managing chronic disease risk.
Height loss from osteoporosis in elderly women shrinks ideal-weight estimate — bone health via calcium, vitamin D and weight-bearing exercise matters alongside scale targets. Paediatric and geriatric goals always need specialist input, not adult Devine formula alone.
Disclaimer
Ideal Weight Calculator provides formula-based estimates for educational wellness planning. Healthy weight is individual and medical — not defined by a single formula or social pressure. Results are not medical advice. Consult a qualified doctor or registered dietitian before weight loss, gain or exercise programmes, especially with eating disorder history, pregnancy or chronic disease.