The InBody Score Explained: Is a Higher Number Always Better?
The InBody Score is a single number, usually printed in a box near the top right of the result sheet, that summarises your body composition. InBody describes it as a score out of 100, based on how your muscle and fat compare with standards for your height and weight; very muscular people can score above 100. A higher score generally means more muscle relative to fat. But it is not always better to chase it: the score can drop during sensible fat loss, rise for the wrong reasons, and it hides the detail that actually guides training.
Here is how the score is built, where it misleads, and which parts of the sheet are more useful.
How the score is worked out
InBody does not publish every detail of the calculation, but the principle is straightforward. The machine compares your measured muscle and fat with standard ranges for someone of your height, weight and sex. You gain points for muscle and lose points for excess fat. The result is a single number that climbs as muscle rises and excess fat falls.
Because extra muscle adds points, a lean person with well above average muscle can push past 100. That is why it is described as a score “out of 100” with a ceiling that can be exceeded, not a percentage.
Not every InBody model prints the score, and some versions of the result sheet show it only on request. If yours does not, nothing is missing: all the information it summarises is elsewhere on the page. Our guide on how to read InBody results line by line walks through the full sheet.
When a higher score is good news
For most people starting strength training, a rising score is a fair sign of progress. If you are lifting regularly, eating enough protein and holding your weight steady, you would expect muscle to tick up slowly and fat to tick down. The score captures that in one figure, which can be motivating to see after a few months of steady work.
When a higher score is not the whole story
The score can fall during good fat loss
If you lose fat and a small amount of lean mass in a calorie deficit, which is common, the score can stall or drop slightly even though your health and appearance are improving. Lean mass on an InBody includes water and glycogen, so cutting carbohydrates or calories lowers it in the short term regardless of whether you have lost any actual muscle.
It can rise for reasons that are not muscle
Scanning after a large meal, after a lot of fluid, or after a heavy training session can change the impedance reading and push lean mass up on that day. Our post on InBody accuracy and what skews the reading lists the culprits.
It rewards size, not health
Someone carrying a lot of muscle with moderately high body fat can score well, while a slim, fit endurance runner scores lower. Neither number tells you how strong, mobile or healthy either person is.
It is not designed for comparison between people
Your score compared with a friend’s says little. The only useful comparison is with your own previous scans, taken under the same conditions.
What to look at instead, or alongside
When I go through a sheet with someone, the score gets a glance. These get the attention:
| Measure | Why it matters |
|---|---|
| Skeletal muscle mass | The best single indicator of whether you are building or holding muscle |
| Body fat mass (kg) | More honest than percentage, which moves when muscle changes |
| Percent body fat | Useful against healthy ranges for your age and sex |
| Visceral fat level | An estimate of fat around the organs, linked to health risk |
| Segmental lean analysis | Shows if one side or the upper body is lagging |
| Total body water | Tells you if the day’s reading can be trusted |
Skeletal muscle mass in particular has its own guide: skeletal muscle mass on an InBody scan.
A sensible way to use the score
- Take a baseline under consistent conditions: morning, before eating or training, after using the toilet.
- Re-test every four to eight weeks. Muscle builds slowly; weekly scans mostly record water.
- Read the score in context. If it moves, check whether muscle, fat or water caused the change.
- Set goals on behaviour, not the score. Training sessions completed, protein eaten, steps walked. The numbers follow.
- Use other markers too. Strength on key lifts, waist measurement and how you feel day to day.
What a realistic change looks like
It is tempting to expect the score to climb quickly. In reality, building muscle as an adult is slow, particularly after 30, and the score reflects that. Over a twelve-week block, a few points’ rise is a solid outcome for someone new to lifting. For someone in a fat-loss phase, a stable score while fat mass falls is a good result in itself. Expect less change than you hope for, and you will read the sheet more calmly.
Safety note
The scan uses a very low electrical current. InBody advises that people with pacemakers or other implanted electronic devices should not be scanned, and the reading is not meaningful during pregnancy. If either applies, or you have a heart condition, check with your GP first and tell your trainer before stepping on.
Where the scan fits in training
In the private studio on Archway Road, the InBody sits in the same room you train in, so re-tests can be taken in the same conditions each time. Results are used to adjust the programme: more emphasis on a lagging area, a protein review, or a change of pace. If you would like to know more about how 1-1 training with Artem is structured, the training page covers it.
Questions we get asked
What is a good InBody Score?
There is no universal “good” figure. A steady rise in your own score over months, alongside stable or falling fat, is the result to look for.
Why is my score over 100?
Because you carry more muscle than the standard for your height and weight, with relatively low fat. It is not an error.
My score dropped but I look leaner. Why?
Probably a short-term drop in lean mass from lower water and glycogen during a calorie deficit. Check body fat mass: if it fell, you are on track.
Should I aim for 100?
Only if building a lot of muscle is your goal. For health, being in a sensible fat range with decent muscle matters more than the score.
Read more about personal training in Highgate, or see the UK Chief Medical Officers’ physical activity guidelines for the recommended weekly baseline. You can also find us on The Highgate House homepage.
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