Advanced BMI Calculator
Adjust the sliders. Results update instantly.
Your BMI
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BMI is a simple weight-to-height ratio and does not measure body composition.
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BMI Gauge
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Weight vs Target
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Target (BMI 25): —
Healthy weight range
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BMI 18.5 to 24.9
Weight at BMI 25
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Upper “healthy” boundary
Ideal weight (Devine)
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A commonly used clinical heuristic.
Delta to “optimal metabolic zone”
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How far you are from a target BMI zone (default BMI 23).
Longevity projection
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A heuristic “health age” derived from BMI, age, and sex.
Segmented recommendations (Traffic Light)
Cardiovascular risk marker
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This is a directional risk signal based on BMI and age. It’s meant to reflect how strongly your current body-weight range tends to correlate with cardiovascular risk factors like blood pressure, cholesterol patterns, and sleep apnea risk. It is not a diagnosis.
Metabolic efficiency marker
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This is a directional marker estimating how “strained” metabolism may be based on BMI and age. It loosely relates to the likelihood of insulin resistance, fatty liver tendency, and inflammatory load. It is not a lab test and cannot replace clinical evaluation.
Estimated weight loss over time (typical study timelines)
Timelines are modeled from published study durations and typical weight-loss trajectories. Actual results vary and weight change is not linear.
This calculator is informational only and does not provide medical advice. Talk to a qualified clinician for personalized guidance.