Online medical calculators
Medical calculators with interpreted results and sources
Every calculator shows the result with an interpretation, the formula we use and the sources. It works instantly in your browser without signing in, and the data you enter is not sent anywhere.
23 calculators 8 specialties
- PaediatricsGrowth percentile calculatorChild weight, height, BMI and head circumference on WHO and Polish charts
- Anthropometry and nutritionBMI calculatorAdult body mass index, healthy weight range and waist-to-height
- DiabetologyHOMA-IR and Matsuda indexInsulin resistance from fasting glucose and insulin and from an OGTT
- DiabetologyHbA1c calculatorHbA1c in % and mmol/mol, average glucose and treatment targets
- ObstetricsPregnancy weight gain calculatorRecommended weight gain by pre-pregnancy BMI and week of pregnancy (IOM)
- PaediatricsApgar scoreNewborn condition after birth, 0–10
- PaediatricsPaediatric Glasgow Coma ScaleLevel of consciousness in infants and children (PGCS), 3–15
- CardiologyNYHA classificationFunctional class of heart failure, I to IV
- PsychiatryPHQ-9 depression testScreening questionnaire for depressive symptoms
- PsychiatryAthens Insomnia Scale8 questions on sleep and daytime functioning (AIS)
- Geriatrics and nursingClinical Frailty ScaleGrade frailty in older adults from 1 to 9
- Geriatrics and nursingBarthel IndexIndependence in 10 activities of daily living, 0–100
- Geriatrics and nursingNorton scalePressure ulcer risk in 5 areas, 5–20 points
- Geriatrics and nursingVES-13Screening for vulnerability to health decline in older adults
- Anthropometry and nutritionMUSTMalnutrition risk in adults: BMI, weight loss, acute illness
- ObstetricsBishop scoreCervical ripeness before induction of labour, 0–13
- Unit convertersGlucose and HbA1c converterGlucose mg/dL ↔ mmol/L, HbA1c % ↔ mmol/mol
- Unit convertersCholesterol and triglyceride converterCholesterol, LDL, HDL, TG, ApoB, Lp(a): mg/dL ↔ mmol/L
- Unit convertersBiochemistry unit converterGlucose, proteins, bilirubin, lipids, vitamins: mg/dL ↔ mmol/L
- Unit convertersBlood count unit converterHaemoglobin, cells, platelets: g/dL, mmol/L, ×10³/µL, ×10⁹/L
- Unit convertersKidney function unit converterCreatinine, urea, BUN, uric acid, ammonia, Ca, P, Mg
- Unit convertersHormone unit converterThyroid, adrenal, sex hormones, insulin, natriuretic peptides
- Unit convertersAlcohol units calculatorGrams of pure alcohol, standard drinks and calories
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How our calculators work
- The formula in plain sightWith every result we show the formula and the values it came from.
- Sources and guidelinesCut-offs and interpretations come from guidelines and publications, with links.
- Your data stays with youCalculations run in your browser; nothing is sent to our server.
The tools are for education and do not replace a doctor’s assessment or current guidelines.