Free to use. No sign-up needed.
Free health
calculators & tools.
Make sense of your numbers. Explore what they mean for your health and find a useful next step.
Explore all tools & calculators
Longevity
Biological Age Calculator
Estimate your biological age with PhenoAge using nine blood measurements and your age at the draw.
Metabolic health
HOMA-IR Calculator
Calculate an estimate of insulin resistance from paired fasting glucose and insulin.
Blood sugar
A1C & Estimated Average Glucose (eAG) Calculator
Convert between A1C and estimated average glucose (eAG) with the ADAG relationship.
Heart health
Cholesterol Ratio Calculator
Work out your total-to-HDL ratio and non-HDL cholesterol from your lipid results.
Body measurements
Waist-to-Height Ratio Calculator
Put your waist measurement in context using your height. No lab results needed.
Planning
HSA/FSA Budget Calculator
Find lab tests that fit your HSA or FSA budget and compare complete prices.
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These are the lab tests that produce the numbers these calculators use.
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