BMI Surgery Readiness
Find out if your BMI is optimal for your procedure — and how long it will take to get there
Your Measurements
Units
Height (feet)
Height (inches)
Current Weight (lbs)
Procedure of Interest
Select Procedure
Weight Loss Pace
How aggressively are you able to diet and exercise?
Please complete all fields before calculating.
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Your Current BMI
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Target BMI
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To Lose
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Est. Timeline
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Target Weight
Weight Loss Timeline
Conservative pace--
Moderate pace (recommended)--
Committed pace--
Your BMI vs. All Procedures
Ready now
Marginal / close
Weight loss needed
Pre-Surgery Weight Loss Tips
Aim for 1–2 lbs (0.5–1 kg) per week — the rate endorsed by Mayo Clinic, NHS, and NIH as safe and sustainable without muscle loss.
Reach your target weight and maintain it for at least 3–6 months before surgery. Stable weight produces significantly better and longer-lasting results.
Avoid crash dieting. Losing more than 1.5 kg/week risks muscle loss, nutritional deficiency, and metabolic slowdown — all of which impair surgical recovery.
For body contouring procedures (tummy tuck, liposuction, BBL), visceral fat cannot be removed surgically — only diet and exercise can reduce it. A flat result depends on low visceral fat regardless of BMI.
A BMI under 30 reduces anesthesia risk, wound healing complications, infection rates, and likelihood of revision surgery across all procedure categories.
BMI is a screening tool, not a definitive measure of surgical eligibility. Individual health history, comorbidities, body composition, and surgeon assessment all contribute to the final decision. These thresholds reflect published consensus guidelines from ASPS and board-certified plastic surgeons; individual practice policies may vary. Always consult a board-certified plastic surgeon for a personalised evaluation.
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