Ideal Weight for a Large Frame
A large frame adds 10% to every ideal-weight formula for the extra bone and structural mass a broad build carries. The frame is pre-set to large below — add your height, sex and, optionally, your wrist size.
Find Your Ideal Weight
Required: the ideal-weight formulas use biological sex (male or female) as a variable, so the estimate can’t be calculated without it.
Age adjusts the healthy BMI reference range for adults 65+ (senior guidelines use BMI 23–28).
Enter your height in centimeters (e.g., 170 cm)
Valid range: 152–214 cm (approx. 5 ft – 7 ft)
The ±10% frame adjustment is applied to all four formulas. Clinical medication dosing uses the unadjusted medium-frame value.
Women (>165 cm): Small <15.9 cm · Medium 15.9–16.5 cm · Large >16.5 cm
Valid range: 10–30 cm
Displays the average across all four major clinical formulas for a balanced target.
*This calculator is for informational purposes only. Please consult a healthcare professional before making any health decisions. See our medical disclaimer for more information.
Calculations are powered by the Devine, Robinson, Miller & Hamwi IBW Equations, four peer-reviewed clinical formulas for ideal body weight validated for adult assessment (Pai & Paloucek, Ann Pharmacother, 2000).
Quick Answer
Ideal Weight for a Large Frame
A large frame adds 10% to every ideal-weight formula here. For a 5 ft 10 in man, the medium-frame average of about 72.4 kg becomes roughly 79.6 kg with a large frame. The frame is pre-set to large above — add your height, sex and, optionally, your wrist size.
What the +10% Frame Factor Does
Ideal-weight formulas assume an average, medium build. Two people of the same height can carry noticeably different amounts of bone and structural tissue, so the calculator offers a frame adjustment: a large frame multiplies each formula's result by 1.1, and a small frame by 0.9. The medium (standard) value is what clinical medication dosing uses, unadjusted. Working through the 5 ft 10 in man example: the four medium-frame figures — Devine 73.0, Robinson 71.0, Miller 70.3, Hamwi 75.3 kg — each rise 10% to give Devine 80.3, Robinson 78.1, Miller 77.3 and Hamwi 82.8 kg, averaging about 79.6 kg. The adjustment is a convention for skeletal build, not a body-composition measurement.
Classifying Your Frame and Reading the Result
The tool can classify your frame from a wrist measurement using the Grant & DeHoog thresholds — enter it in the optional field and it sets small, medium or large for you. Keep in mind that a large-frame figure can climb above the healthy BMI range for your height; when it does, the calculator flags it and the BMI range stays the better target. Because a broad frame often coincides with more lean tissue, it is worth checking your composition with the Lean Body Mass Calculator, and placing any figure on the standard scale with the BMI Calculator. To switch frames or compare all four formulas, use the full Ideal Weight Calculator.
Figures use the Devine, Robinson, Miller and Hamwi equations (Pai & Paloucek, 2000) with a ±10% frame convention. They are population references, not medical advice, and do not account for muscle mass or individual health conditions.
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