Free health and hospital calculators

Quick, private calculators that run in your browser: nothing you type is sent anywhere. For people and families, and for the doctors and managers who run clinics and hospitals.

Try the QueroCura app For hospitals

Made in IndiaConsent firstEnglish & हिन्दी

For you and your family

BMI calculator with Indian cut-offs: Free BMI calculator with both WHO and the lower Asian-Indian cut-offs (overweight from 23, obese from 25). Enter height and weight; nothing is sent anywhere.
Is my blood pressure normal? Check a reading: Enter your blood pressure reading to see its category (ISH 2020): normal, high-normal, grade 1 or grade 2 hypertension, and when to get urgent care.
HbA1c to average blood sugar: Convert an HbA1c result to estimated average glucose in mg/dL and mmol/L, or the other way round, with the normal, prediabetes and diabetes ranges.
Pregnancy due date calculator: Calculate your estimated due date and how many weeks pregnant you are from the first day of your last period, with your cycle length.
Make a printable medicine schedule: Make a printable daily medicine chart for a parent or yourself: medicines, doses and times of day in a clear table. Free, in your browser, nothing is sent anywhere.

For doctors and hospital managers

QTc calculator (four formulas): Corrected QT interval calculator for clinicians: Bazett, Fridericia, Framingham and Hodges from QT and heart rate, with prolongation thresholds.
Bed occupancy rate and length-of-stay calculator: Free hospital KPI calculator: bed occupancy rate, average length of stay (ALOS), bed turnover rate and turnover interval from beds, inpatient days and discharges.
OPD capacity and waiting time calculator: How many OPD patients can your doctors see per day, and how long will the next patient wait? A free calculator for clinics and hospitals.

Your health story, in one calm place.

Free for people and families; a hospital system sized to you.

Try the QueroCura app

Last updated 03 November 2026.