Body Mass Index (BMI) Calculation and Ideal Weight in ft and lb

How to use: enter height in feet and inches, weight in pounds, age and sex (required). Waist and hip measurements are optional but allow you to calculate WHR, WHtR and ABSI, cardiovascular risk indices. Choose the physical activity level and body frame to estimate your daily caloric requirement (TDEE). The Reminder field allows you to add a personal note to the calculation (e.g. "after 2 weeks of diet").

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Click here for the English version in cm and kg.
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Body Mass Index, Body Fat and Caloric Requirement

Main data
ft in
lb
years
Optional measurements
in
in
Lifestyle
16 17 18.5 25 30 35 40 Underweight Normal Overweight Obesity BMI = --

Main results

BMI:----
Body Fat Percentage (BFP):-- %
Waist-to-Hip Ratio (WHR):--
Estimated ideal weight:-- lb
Weight to lose / gain:--
Caloric requirement (TDEE):-- kcal/day

Ideal weight by formula (lb)

FormulaResult (lb)

Indicative estimates; they vary according to bone structure and individual body composition.

Advanced results

Basal Metabolic Rate — Harris-Benedict (BMR):-- kcalCalories burned at complete rest
Basal Metabolic Rate — Mifflin-St Jeor (BMR):-- kcalGenerally more accurate than Harris-Benedict
Body Surface Area — Du Bois (BSA):-- ft² Used in pharmacology for drug dosage
Fat-Free Mass Index (FFMI):-- "Natural" threshold approximately 25 for men, approximately 22 for women
Lean Body Mass (LBM):-- lbBody weight excluding fat (muscle, bone, water, organs)
Total Body Water — Watson (TBW):-- % Estimate of total body hydration
Muscle mass (estimate):-- % Estimated from BFP, sex and age; does not replace bioelectrical impedance analysis
Note: All values are estimates based on statistical formulas and do not replace a professional medical evaluation.
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Reference tables

CategoryBMI (kg/m²)Health risk
Severe thinness< 16.0Very high
Moderate thinness16.0 – 16.9High
Mild thinness17.0 – 18.4Moderate
Normal weight18.5 – 24.9Low (healthy range)
Overweight25.0 – 29.9Increased
Obesity class I30.0 – 34.9High
Obesity class II35.0 – 39.9Very high
Obesity class III≥ 40.0Extremely high
Source: World Health Organization (WHO)

BMI does not distinguish between muscle and fat mass. Very muscular athletes may have a high BMI without any health risk.

Age groupMenWomen
18–2419 – 2418 – 23
25–3420 – 2519 – 24
35–4421 – 2620 – 25
45–5422 – 2721 – 26
55–6423 – 2822 – 27
65+24 – 2923 – 28

With age, a slightly higher value is acceptable, as body composition changes physiologically.

Height (ft/in)Small frameMedium frameLarge frame
5'1"119–130128–139137–150
5'3"124–136134–145143–158
5'5"130–143141–154152–167
5'7"137–150148–163161–176
5'9"143–156154–170168–185
5'11"150–165163–179176–194
6'1"157–172170–187185–203
6'3"163–181179–196194–214
Height (ft/in)Small frameMedium frameLarge frame
4'11"101–110108–121119–130
5'1"106–117114–128126–139
5'3"112–123121–134132–145
5'5"119–130128–141139–154
5'7"126–139137–150148–163
5'9"132–145143–158157–172
5'11"139–152150–165163–181

Indicative values in lb (Metropolitan Life Insurance tables). Body frame refers to wrist bone structure.

AgeSedentaryLightly activeMod. activeVery active
18–302,400–2,6002,600–2,8003,000–3,2003,200–3,600
31–502,200–2,4002,400–2,6002,800–3,0003,000–3,400
51+2,000–2,2002,200–2,4002,400–2,8002,800–3,200
AgeSedentaryLightly activeMod. activeVery active
18–301,800–2,0002,000–2,2002,200–2,4002,400–2,800
31–501,600–1,8001,800–2,0002,000–2,2002,200–2,600
51+1,500–1,6001,600–1,8001,800–2,0002,000–2,400

Approximate values; actual requirements depend on individual metabolism and weight goals.

Category20–39 years40–59 years60–79 years
Essential3–5%3–5%3–5%
Athletic6–10%6–10%6–10%
Fitness11–14%11–14%11–14%
Acceptable15–20%16–22%17–23%
Overweight21–24%23–26%24–27%
Obesity≥25%≥27%≥28%
Category20–39 years40–59 years60–79 years
Essential10–12%10–12%10–12%
Athletic13–18%13–18%13–18%
Fitness19–22%19–22%19–22%
Acceptable23–27%24–28%25–29%
Overweight28–32%29–33%30–34%
Obesity≥33%≥34%≥35%

Indicative values (American Council on Exercise). Essential fat is necessary for vital hormonal and physiological functions.

calcolatrice calorie negli alimenti cibi ordinati per nome e calorie tabelle nutriz.: grassi e proteine tabelle nutrizionali: le vitamine tabelle nutrizionali: i minerali tabelle nutrizionali: i carboidrati le calorie in 40000 alimenti WHR, rapporto vita / fianchi calcolo metabolismo basale fabbisogno calorico per attività fabbisogno calorie peso e altezza consumo quotidiano di calorie calorie bruciate per attività obesità e metodi di misura tabelle indici di massa corporea indici m. corporea (BMI 19-35) indici m. corporea (BMI 36-54) tabelle peso ideale per gli adulti calcolatore del grasso corporeo calcolo col metodo pliche cutanee calcolatrice massa adiposa carenza di calcio nella dieta
Pubblicazioni INRAN, Istituto Nazionale di Ricerca per gli Alimenti e la Nutrizione
linee guida alim. (ridotto) linee guida alim. (integrale)
linee guida alimentazione, introduzione
linee guida alimentazione cap. 01 linee guida alimentazione cap. 02 linee guida alimentazione cap. 03 linee guida alimentazione cap. 04 linee guida alimentazione cap. 05 linee guida alimentazione cap. 06 linee guida alimentazione cap. 07 linee guida alimentazione cap. 08 linee guida alimentazione cap. 09 linee guida alimentazione cap. 10




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