{"resource":"https://api.magentlab.com/api/calc/ffm","service":"magent","areas":["other"],"answering":true,"http_status":402,"latency_ms":181,"price_usdc":0.005,"buyers_30d":2,"calls_30d":3,"description":"Boer 1984 estimated lean body mass from sex, height_cm, and weight_kg (male 0.407W+0.267H-19.2; female 0.252W+0.473H-48.3). Reports lbm_kg (paper term) with ffm_kg as the same alias. Height 100-220 cm and weight 20-300 kg are magent clamps,","id":"a669bba5c1d2","category":"Calculators and conversions","accuracy":null,"tool_calls":null,"checked_day":"2026-10-11","page":"https://velliumandco.com/sellers/a669bba5c1d2"}