Compute healthy weight range with Devine and Robinson formulas from height. See a 170 cm target band instantly — free, local, informational only.
Content reviewed October 2026 · About Toolzum
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Both estimate from height: Devine (1974, classic clinical) and Robinson (1983, slightly adjusted). The tool shows both: a 170 cm man reads Devine 65.9 kg and Robinson 65.2 kg. Only heights above 100 cm compute.
No — formulas ignore frame, muscle, and age. Athletes and older adults fall outside formula bands normally; treat output as a starting reference.
No — informational only. Weight goals involving health conditions deserve a doctor or dietitian, not a formula.
No — math runs locally in your browser. Health data never leaves your device.
BMI Calculator
Computes Body Mass Index from metric or imperial height and weight inputs, categorizing the result into underweight, normal, overweight, and obese, with a healthy weight range for your height. Health data never leaves your device — every calculation runs locally in your browser.
Lean Body Mass Calculator
Estimate lean body mass from weight and height with Boer and James formulas averaged — the number training actually moves. Track muscle, not just scale weight — free, local, informational only.