誠實的警告
BMI 無法衡量之處。當它誤導時。何時該諮詢臨床醫生。
CalculatorSoup, NIH, and the dozen ad-wrapped "BMI calculator" sites all do the same thing: take your height and weight, divide, hand back a category. None of them tell you that BMI is a 19th-century actuarial heuristic invented for population statistics — not a diagnosis, not a body-composition reading, not actionable on its own. The ad sites also happily transmit your numbers through third-party trackers because health data is valuable to advertisers. Morph runs the math in your tab, supports metric and imperial without retyping, and is honest about what the number means and where it falls short — muscle vs fat, athletes, older adults, ethnic-group adjustments. Free for everything that runs on your device; AI is paid in credits.
19世紀的 Quetelet 公式。切換公制(公分 + 公斤)或英制(英尺 + 英寸 + 磅),計算器會自動套用正確公式。切換單位時,數值會保留 — 無需重新輸入。
體重過輕(<18.5)、健康(18.5–24.9)、超重(25–29.9)、肥胖(30+)。以及您的身高對應的健康體重範圍。
BMI 無法衡量之處。當它誤導時。何時該諮詢臨床醫生。
高度和重量從未傳輸,從未記錄。關閉標籤頁 = 無任何內容留下。
BMI was invented by Belgian astronomer Adolphe Quetelet in the 1830s to characterize the average build of a population, not to diagnose individuals. It has zero ability to distinguish a 220-pound bodybuilder from a 220-pound sedentary office worker — both score "obese" on the same height. It under-flags Asian populations (where cardiometabolic risk rises at lower BMIs) and over-flags certain Pacific Islander populations. It's a bad signal for older adults losing muscle mass and a misleading signal for athletes. It is, however, fast, free, and a reasonable population-level screening tool — useful for noticing trends, useless for diagnosis. The Morph calculator gives you the number and the context. A clinician (with body composition, lab work, family history, and your actual lifestyle) gives you the diagnosis.
對於體脂組成(肌肉與脂肪),請使用DEXA掃描、BodPod或水下稱重。對於代謝健康,請向醫生諮詢HbA1c、空腹血糖、血脂檢測和腰臀比。對於兒童評估,請使用年齡和性別特定的百分位圖表(成人標準不適用於18歲以下)。BMI只是多個信號之一——Morph誠實地提供此信號,不收集您的數據,並指引您前往正確的下一步。
BMI 是您的體重(公斤)除以身高(公尺)平方。Morph 可處理公制和英制輸入,並在後台乾淨轉換。
BMI是篩查工具,而非診斷。它無法區分肌肉與脂肪,不考慮脂肪分佈,且可能誤導運動員、年長者及某些族群。請將其視為多個信號之一。
是的。計算過程在您的瀏覽器標籤頁中完成。檔案不會傳送到任何伺服器,無任何分析追蹤您輸入的數值,且關閉頁面後不會保留任何資料。
兩者皆可。隨時切換單位系統,計算器會套用正確的公式。數值在切換時保持不變。
兒童 BMI 使用年齡和性別特定百分位數,而非成人閾值。Morph 計算器專注於成人 BMI。未滿十八歲者,請諮詢小兒科醫生以取得正確解讀。
若您的 BMI 低於 18.5 或高於 25,特別是伴隨其他風險因素(如家族心臟病或糖尿病病史),醫療專業人員可評估完整背景(身體組成、飲食、活動水平、實驗室檢測結果),並告知您該數字是否具有行動意義。