Free health calculators
Doctor-reviewed, evidence-based, ad-free.
BMI
Calculate your Body Mass Index with thresholds adjusted for your ethnicity — because health risk starts at different BMI levels across populations.
Open →HbA1c ↔ eAG
Convert your HbA1c percentage to an estimated average glucose (the number your glucometer shows), and back again.
Open →Due date
Estimate your due date from your last period, conception date, or IVF transfer — with your current week and trimester.
Open →Blood pressure
Find out which category your blood pressure falls into, using the ACC/AHA 2017 guideline thresholds.
Open →PHQ-9 (depression)
A validated 9-question screen for depression severity. Private, takes two minutes, and not stored unless you choose to.
Open →eGFR (kidney)
Estimate your kidney function with the 2021 race-free CKD-EPI equation — the standard recommended by kidney societies worldwide.
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