Muscle from fat
The formula uses total weight. A muscular person and a sedentary person of the same height and weight get the same BMI and are in completely different physical condition.
BMI calculator
Two numbers, worked out in your browser. Then the part most calculators leave off: what the result actually means for surgery, and why a high number — or being plus size — is a reason to have a conversation rather than a reason to be turned away.
- Nothing is sent to us and nothing is saved.
- 869 published results record the patient’s starting BMI.
- Awake FlexSculpt is performed up to a BMI of 65.
Work it out
Work out your BMI
Enter your height and weight in either unit. It is calculated in your browser — nothing is sent to us and nothing is saved.
BMI is one measure among several and it says nothing about how you are built. Surgeons weigh it alongside your health and your goals; it does not decide anything on its own.
The BMI categories, and what each one usually means here
The bands are the standard adult ranges used by the CDC and the WHO. The third column is ours, and it is a general pattern rather than a decision — the decision happens at a consultation.
| BMI | Category | What it usually means at Goals |
|---|---|---|
| Below 18.5 | Underweight | There is usually little fat to remove, so contouring is rarely the right answer. A consultation will say so rather than book you. |
| 18.5 – 24.9 | Healthy weight | Straightforward candidacy for most procedures. 130 of our published results started in this range. |
| 25.0 – 29.9 | Overweight | The most common starting point in our gallery — 426 published results — and not an obstacle to anything. |
| 30.0 – 34.9 | Obesity, class I | The point where many practices stop taking the appointment. 257 of our published results started here. |
| 35.0 – 39.9 | Obesity, class II | Usually staged across more than one session rather than done in a single long operation. 54 published results started between 35 and 42. |
| 40.0 and above | Obesity, class III | Assessed individually. Awake FlexSculpt is performed up to a BMI of 65 — a ceiling, not a promise. Whether it suits you depends on your health, not on the number alone. |
What the number actually is
Body mass index is your weight in kilograms divided by the square of your height in metres. That is the whole calculation. It was devised in the nineteenth century to describe populations, not to assess an individual, and it has been doing a job it was never designed for ever since. It is still worth knowing, because it is the number every practice screens on and the number that decides whether you get an appointment at all — which is exactly why it is worth understanding what it can and cannot see.
Four things your BMI cannot see
None of these are reasons to ignore the number. They are reasons not to let it be the only one.
Where the fat sits
Fat carried around the organs behaves differently from fat carried under the skin, and only the second kind is what liposuction removes. BMI does not distinguish them.
Your actual health
Blood pressure, blood sugar, cardiac fitness and how you handle anesthesia are what a surgeon is really assessing. BMI is a rough proxy for those, not a substitute.
What you want changed
A number describes your whole body. Most people come in about one area of it, and the number says nothing about whether that area can be improved.
Why a high BMI does not close the conversation here
It is a different anesthetic, so it is a different limit — and plus size patients are the reason that matters.
- 01
The risk sits with general anesthesia
The weight-related dangers most surgeons are screening for — airway management, ventilation, cardiac load — belong to being put under. Practices draw a line near a BMI of 30 or 35 because of that, and the line is a sensible one for the way they operate.
- 02
FlexSculpt is performed awake
Local anesthetic, no general. The risks that scale with weight under a general anesthetic are not part of the operation, which is why the workable ceiling is higher — up to a BMI of 65.
- 03
Large volumes are staged
Rather than one long maximal operation, more is taken across more than one session. That is the other half of why a higher starting number is workable.
- 04
You are assessed, not sorted
A number on a chart is not a diagnosis. Your health, your distribution of fat and what you want changed decide it — and if the honest answer is not yet, or not this, you are told that at a free consultation rather than booked anyway.
Once you have your number
869 of our published results record the patient’s starting BMI, so you can look at people who began where you are.
Plastic surgery at a higher BMI
What can and cannot be done above a BMI of 30, and the honest limits.
Before and after results
313 published results from a starting BMI of 30 or above.
Awake liposuction with FlexSculpt
The operation itself, how it is performed and what it does.
Book a free consultation
A straight answer about your own case, including if it is no.
Questions about BMI and surgery
Weight in kilograms divided by height in metres squared. In US units it is weight in pounds divided by height in inches squared, multiplied by 703. The calculator above does either — the number is identical, only the units differ.
Awake FlexSculpt is performed up to a BMI of 65. Treat that as a ceiling rather than a promise: whether it suits you depends on your health and on your assessment, and you will be told plainly at a free consultation.
It can. BMI uses total weight and cannot tell muscle from fat, so athletic and muscular people are routinely categorised as overweight or obese by it. That is one of the reasons a consultation assesses you rather than your number.
Yes. Plus size tummy tucks, liposuction and BBLs are routine here rather than exceptional — awake FlexSculpt is performed up to a BMI of 65, and 313 of our published results started from a BMI of 30 or above. Whether it is right for you is still decided at a consultation, on your health rather than your dress size.
Barely, and that is not what it is for. Liposuction removes fat from a specific place and changes the shape of that place. It is not weight-loss surgery and it is not a treatment for obesity — anyone selling it to you as one is not being straight with you.
For a general anesthetic that advice is sound, and for some patients losing weight first genuinely produces a better result. What is not right is presenting it as the only option without mentioning that awake techniques exist and carry a different ceiling. Bring the question to a consultation and get both answers.
No. The calculator runs entirely in your browser. Nothing is submitted, nothing is stored and nothing reaches us — a height and a weight are health data, and there is no reason for them to leave the page.
Reading your BMI without letting it read you
A calculator gives you a number in a second. The harder part is knowing what weight to put on it — because for most people who look this up, the number has already been used once to close a door.
Where the categories came from
The bands — underweight, healthy, overweight, and the three classes of obesity — are conventions agreed for population health, and they are the same everywhere so that studies can be compared. They are not diagnostic thresholds for an individual, and nothing biological happens to you between 29.9 and 30.0. What does happen is administrative: a great many clinical policies are written around those cut-offs, and crossing one changes how you are treated by a system long before it changes anything about your body.
Why practices screen on it
Surgeons screen on BMI because it correlates well enough with anesthetic risk to be useful, and because it takes two seconds to check. Under a general anesthetic the concerns are real and specific: the airway is harder to manage, ventilation is harder to maintain, positioning is harder, the operation runs longer and the recovery is heavier. A practice that draws its line at 30 or 35 is not being unkind. It is being accurate about the way it operates.
What changes the ceiling
What that line is not is a statement about what is possible. It is a statement about one method. Take the general anesthetic out of the operation and the largest weight-related risk goes with it, which is why Goals performs FlexSculpt awake, under local, and works to a ceiling of 65 rather than 35. Large volumes are staged across sessions instead of taken in one sitting. Neither of those makes weight irrelevant — they change which risks are on the table, and a consultation is still where it is decided whether the trade is a good one for you specifically.
When losing weight first is the right order
Sometimes the honest answer is to lose first and contour after. If a substantial amount of weight is coming off in the next year, contouring done now will be undone by it, and the sensible order is the other way round. That advice gets given at Goals too. The difference is that it is given as advice after an assessment, rather than as a refusal issued from a number on an intake form — and it comes with a plan and a date rather than come back when you have sorted yourself out.
Find out where you actually stand
A free consultation, and a straight answer about your own case — including if the answer is not yet.
Prefer to talk now? (833) 462-5769