“Kitna weight theek hoga?” — it’s one of the most common questions at gyms, clinics, and family gatherings across Pakistan. Ideal weight isn’t about a celebrity look; it’s the weight range associated with the best long-term health for your height and build. Our free ideal weight calculator uses the Devine formula — the clinical standard doctors have used since the 1970s — and shows your ideal weight in kilograms along with the healthy range to aim for.
Ideal Weight Calculator
What Is the Devine Formula?
In 1974, Dr. B. J. Devine published a formula for estimating ideal body weight for drug dosing and health assessment. It starts from a base weight at 5 feet (152.4 cm) and adds 2.3 kg for every inch above it:
- Men: 50 + 2.3 × (inches − 60)
- Women: 45.5 + 2.3 × (inches − 60)
(Below 5 feet, the base weight is used.)
Other formulas you may hear of — Robinson, Miller, Hamwi — give slightly different answers, but Devine remains the most widely used in clinical practice. Think of it as a sensible midpoint, not a magic number: your frame size, muscle mass, and age all shift where your personal ideal sits.
How to Use
- Select your gender (base weights differ for men and women).
- Enter your height in centimetres.
- Click Calculate — your ideal weight in kg appears, plus a practical target range (±10%).
- Use it as a goalpost alongside your BMI and body fat percentage.
Worked Example
Ayesha is 162 cm tall — that’s about 63.8 inches. Inches above 60 = 3.8. Ideal weight = 45.5 + 2.3 × 3.8 = 45.5 + 8.7 = 54.2 kg. Her sensible target range: roughly 49–59 kg. If she currently weighs 68 kg, she knows her long-term goal — and she can get there safely with a calorie plan from our calorie deficit calculator.
Tips & Limitations
- Athletes and manual workers with above-average muscle can healthily weigh 10–15% more than Devine suggests — muscle is dense.
- Small-framed or older adults may feel best a touch below it.
- “Ideal” here means health-associated, not aesthetic — it maps closely to the middle of the WHO healthy BMI band.
- Combine with body fat percentage: ideal weight + healthy body fat = a complete target.
FAQs
Is ideal weight the same as healthy weight?
Almost. “Ideal” comes from the Devine point estimate; “healthy” is the wider band around it (roughly ±10%, matching WHO BMI 18.5–24.9). Both beat chasing a fashion-model number.
Why do men and women get different ideals?
Women physiologically carry a higher essential fat percentage and different bone density patterns, so clinical formulas use a lower base for women — about 45.5 vs 50 kg at 5 feet.
Which formula is most accurate — Devine, Robinson, Miller, or Hamwi?
They all land within a few kilograms of each other. Devine is the clinical default and the one used here; Miller tends to run slightly higher, Robinson slightly lower. None accounts for frame size, so treat the ±10% band as the real answer.
Should I aim for my ideal weight if I lift weights?
Probably 5–15% above it, depending on muscle mass — check your FFMI to see where you stand.
How fast can I reach my ideal weight safely?
About 0.25–0.5 kg per week. Our TDEE and calorie deficit calculators turn that into a daily eating plan.