BMI Calculator for Men — Free, Australian, with Personalised Meal Recommendations
This is Foober's free BMI (Body Mass Index) calculator for men. Enter your height and weight in metric (cm/kg) or imperial (ft/lb) and the calculator returns your BMI, the WHO category it falls into, and a meal-plan recommendation built around your result and goal. The calculation is instant and does not require an account.
How BMI Is Calculated
BMI = weight in kilograms divided by height in metres squared (kg/m²). Example: a man at 180cm and 80kg has a BMI of 80 ÷ (1.8 × 1.8) = 24.7, which sits in the "normal weight" category.
BMI Categories (WHO standard, adult men)
- Under 18.5 — Underweight. Often indicates a need for higher calorie and protein intake; muscle-gain meal plans tend to suit.
- 18.5 to 24.9 — Normal weight. Balanced macro distribution; high-protein meals support strength and lean mass.
- 25.0 to 29.9 — Overweight. Calorie-controlled, high-protein meals (under 400 cal, 30g+ protein) typically suit a sustainable cut.
- 30.0 and above — Obese. Often paired with medical guidance; portion-controlled, no-added-sugar meals support gradual deficit.
What BMI Doesn't Measure
BMI is a population-level screening tool, not a diagnostic of body composition. It doesn't distinguish muscle from fat, account for fat distribution (visceral vs subcutaneous), or factor in age, ethnicity, or fitness level. A muscular athlete may register as "overweight" by BMI; a sedentary person at "normal" BMI may have high body-fat percentage. Use BMI as a starting point, not a verdict — pair it with waist circumference, body-fat percentage, and how you feel and perform.
Foober Meal Recommendations by BMI Bracket
- Underweight (BMI <18.5) — try the muscle-gain range with 500+ cal LARGE meals at 45g+ protein.
- Normal (18.5–24.9) — explore the high-protein range for everyday performance, or the curated weekly plans.
- Overweight (25.0–29.9) — the weight-loss range covers under-350-calorie meals with 30g+ protein for sustainable deficit eating.
- Obese (30.0+) — combine the weight-loss range with the keto range for low-carb, no-added-sugar options. Pair with medical guidance, especially if using GLP-1 medication (Ozempic, Wegovy, Mounjaro).
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