Reference Ranges
Is this number normal for my age?
Your lab report and most health articles give you one adult range and stop. The useful question is narrower: what is normal for someone your age and sex. These are the published reference tables, with your number placed against them.
Every table on this site comes from a named, citable reference population, and the citation sits at the bottom of each page. Nothing here is generated, estimated, or scored against our own opinion of what good looks like ... we report where your number sits in the published data and let you take it from there.
Free, no signup, no email required. None of these measurements are diagnostic and none of them replace a clinician who knows your history.
Cardiorespiratory
Strength
Grip Strength
- Measured in
- kg
- You need
- Hand dynamometer
- Normed for ages
- 20 to 100+
30-Second Chair Stand
- Measured in
- reps
- You need
- A chair and a timer
- Normed for ages
- 60 to 94
Body composition
Waist-to-Height Ratio
- Measured in
- ratio
- You need
- A tape measure
- Normed for ages
- All adults
Why age and sex specific
A VO2 max of 32 ml/kg/min is below the 25th percentile for a man in his 30s and above the 75th for a man in his 60s. Same number, opposite conclusions. Grip strength of 26 kg is unremarkable for a woman in her 40s and above the 75th percentile for a woman in her 70s.
This is the part that generic health content leaves out, because writing one range is easier than sourcing thirty. It is also the part that decides whether the number tells you anything.
What we are not doing
We are not scoring you, ranking you against other readers, or turning your measurements into a single number that pretends to be your biological age. Those composite scores hide the thing that is actually useful, which is which specific measurement is out of line and by how much.
We also do not ask for your email to show you a result. The result appears on the page.