Where do you
rank in America?
Compare your grip strength, waist, heart rate, and 10 other health metrics to the US population. Research-grade data, no signup, no tracking.
13 calculators, 4 categories
Most-used this week
Often called a "vital sign" by geriatricians. Low grip strength predicts mortality risk more reliably than blood pressure in some studies.
Open calculator → Waist CircumferenceAbdominal fat is metabolically active — it produces inflammatory compounds linked to diabetes and heart disease. A stronger risk predictor than BMI alone.
Open calculator →Three steps. No signup.
Enter
Your age, sex, and one measurement. Sliders and segmented controls make it quick.
Compare
We match you to thousands of US adults in the CDC's NHANES survey by age and sex.
See your rank
You get an exact percentile and where you sit on the population distribution.
Built on the gold standard
NHANES 2011–2023
CDC's continuous health survey covering 56,000+ US adults. The most comprehensive population-representative US health data.
Bohannon 2008
Peer-reviewed meta-analysis of gait speed norms across age groups. Used for our walking-speed calculators.
Peer-reviewed
Every threshold and cutoff traces back to a published study. No invented categories, no paraphrased sources.