Health Calculators
435+ free medical and health calculators: BMI, calories and macros, body fat, lab values, medication dosage, pregnancy, sleep and much more. Enter the numbers you know and the result appears instantly.
435 calculators
Addiction medicine calculators
18 calculators- Addiction Calculator
- Alcohol Unit Calculator
- Audit Score Calculator
- Audit-C Calculator – Am I an Alcoholic?
- BAC Calculator (Blood Alcohol Content)
- Caffeine Calculator
- CAGE Questionnaire Calculator
- Cigarette Calculator
- CIWA Calculator
- DUDIT Calculator
- EtG Calculator
- Fagerstrom Test for Nicotine Dependence Calculator
- Finnegan Score Calculator
- HSI Calculator — Heaviness of Smoking Index
- Pack Year Calculator
- Smoking Recovery Calculator
- Sobriety Calculator
- Standard Drink Calculator
Body measurements calculators
23 calculators- ABSI Calculator
- Adjusted Body Weight Calculator
- BAI Calculator - Body Adiposity Index
- Bedridden Patient Height Calculator
- Body Fat Calculator
- Body Frame Size Calculator
- Body Shape Calculator
- BRI Calculator — Body Roundness Index
- BSA Calculator – Body Surface Area
- Draw Length Calculator
- Face Shape Calculator
- FFMI Calculator (Fat-Free Mass Index)
- Ideal Weight Calculator
- Karvonen Formula Calculator
- Lean Body Mass Calculator
- Overweight Calculator
- Ponderal Index Calculator
- Quiz: FFMI Calculator (Fat-Free Mass Index)
- RFM Calculator (Relative Fat Mass)
- Skinfold Body Fat Calculator
- Waist to Height Ratio Calculator
- Waist to Hip Ratio Calculator
- Weight Loss Percentage Calculator
Cardiovascular system calculators
40 calculators- 6 Minute Walk Test Calculator
- ABI Calculator (Ankle-Brachial Index)
- Aortic Valve Area Calculator
- Arterial Age Calculator
- Blood Pressure Calculator
- Cardiac Index Calculator
- Cardiac Output Calculator
- Cerebral Perfusion Pressure Calculator
- CHA2DS2-Vasc Calculator
- CVD Risk Calculator – Cardiovascular Disease 10-year Risk
- DAPT calculator
- Doppler Echo Cardiac Output Calculator
- Duke Treadmill Score Calculator
- ECG Boxes to Seconds Calculator
- ECG Heart Rate Calculator
- Ejection Fraction Calculator
- EROA - Mitral Regurgitation Calculator
- Framingham Risk Calculator
- Gorlin Formula Calculator
- GRACE Calculator
- Gupta Risk Calculator
- HAS-BLED Calculator
- Heart Failure Life Expectancy Calculator
- HEART Score Calculator
- ICH Volume Calculator
- LV Calculator
- MAP Calculator (Mean Arterial Pressure)
- Mitral Valve Area Calculator
- Padua Score Calculator
- PERC Calculator - Pulmonary Embolism Rule-Out Criteria
- PISA Calculator
- PVR Calculator - Pulmonary Vascular Resistance
- QTc Calculator
- Rate Pressure Product Calculator
- RCRI Calculator
- Revised Geneva Score Calculator for Pulmonary Embolism
- Stroke Volume Calculator
- TIMI Score Calculator for UA/NSTEMI
- TIMI Score for STEMI Calculator
- Wells Score Calculator for Pulmonary Embolism
Diabetes calculators
11 calculators- A1c Calculator – Hemoglobin A1c to Average Blood Sugar
- Blood Sugar Converter
- Diabetes Risk Calculator
- Diabetic Ketoacidosis Calculator
- Estimated Average Glucose Calculator
- Glycemic Index Calculator
- Glycemic Load Calculator
- HOMA-IR Calculator — Insulin Resistance
- Insulin Dosage Calculator
- QUICKI Calculator
- Warsaw Method Calculator
Dietary calculators
32 calculators- Added Sugar Intake Calculator
- BEE Calculator
- Calorie Calculator
- Calorie Deficit Calculator
- Calorie Intake Calculator (Simple)
- Carb Calculator (Carbohydrates)
- Diet Risk Score Calculator
- DRI Calculator
- EER Calculator — Estimated Energy Requirement
- Fat Intake Calculator
- Fiber Calculator
- Gastric Sleeve Weight Loss Calculator
- Harris-Benedict Calculator (Basal Metabolic Rate)
- IIFYM Calculator (If It Fits Your Macros)
- Katch-McArdle Calculator
- Keto Calculator
- Macro Calculator
- Maintenance Calorie Calculator
- Meal Calorie Calculator
- Micronutrient Calculator
- Net Carbs Calculator
- Protein Calculator
- Quarantine Activity Calculator
- Quiz: Harris-Benedict Calculator (Basal Metabolic Rate)
- RMR Calculator - Resting Metabolic Rate
- Sodium in Salt Calculator
- TDEE Calculator - Total Daily Energy Expenditure
- Vitamin A Calculator
- Vitamin Calculator
- Vitamin D Calculator
- Weight Gain Calculator
- Weight Watchers Points Calculator
Digestive system calculators
9 calculatorsDosage calculators
29 calculators- Adderall Dosage Calculator
- Aleve Dosage Calculator
- Benadryl Dosage Calculator
- Benzodiazepine Conversion Calculator
- Carboplatin Calculator
- Cefdinir Dose Calculator
- Dosage Calculator
- Drug Half-Life Calculator
- Fish Oil Calculator
- Gabapentin Dosage Calculator
- Hydroxychloroquine Dose Calculator
- Isotretinoin Dose Calculator
- IVIG Dose Calculator
- Levothyroxine Dosage Calculator
- Lidocaine Dose Calculator
- Local Anesthetic Calculator
- mcg to IU Converter
- Medicine 3 Times a Day Calculator
- Melatonin Dosage Calculator
- MME Calculator
- Opioid Conversion Calculator
- Peptide Calculator
- Prescription Refill Calculator
- Steroid Conversion Calculator
- tPA Calculator – Stroke Dosing
- Tramadol Dosage Calculator
- Tylenol Dosage Calculator
- Tylenol Overdose Calculator
- Warfarin Dosing Calculator
Electrolytes & fluids calculators
22 calculators- Acid Base Calculator
- Anion Gap Calculator
- Arterial Blood pH Calculator
- Bicarbonate Deficit Calculator
- Corrected Calcium Calculator
- Corrected Magnesium Calculator
- Drip Rate Calculator
- Drops Per Minute Calculator
- Free Water Deficit Calculator
- IV Flow Rate Calculator
- Parkland Formula Calculator
- Plasma Osmolality Calculator
- Serum Osmolality Calculator
- Sodium Change Calculator in Hypertriglyceridemia
- Sodium Correction Calculator
- Sodium Correction Rate Calculator for Hypo- and Hypernatremia
- Sodium Deficit Calculator
- Total Body Water Calculator
- Urine Anion Gap Calculator
- Venous Blood pH Calculator
- Water Intake Calculator
- Winters' Formula Calculator
Genetics calculators
10 calculators- Allele Frequency Calculator
- Dihybrid Cross Calculator - Punnett Square
- DNA Copy Number Calculator
- DNA to mRNA Converter
- Hardy-Weinberg Equilibrium Calculator
- Mutation Frequency Calculator
- Mutation Rate Calculator
- Punnett Square Calculator
- qPCR Efficiency Calculator
- Trihybrid Cross Calculator - Punnett Square
Geriatric medicine calculators
9 calculatorsGynecology & pregnancy calculators
35 calculators- BBT Calculator | Basal Body Temperature
- Birth Control Calculator
- Bishop Score Calculator
- Breast Cancer Recurrence Risk Calculator
- Breastfeeding Calorie Calculator
- Chances of Having Twins Calculator
- Clomid Ovulation Calculator
- Conception Calculator
- Crown-rump Length Calculator
- Due Date Calculator
- EDD Calculator - Estimated Date of Delivery
- Egg Freezing Calculator
- Fertility by Age Calculator
- Flange Size Calculator
- Fundal Height Calculator
- Gestational Age Calculator
- hCG Levels Calculator
- Implantation Calculator
- IVF Due Date Calculator
- Luteal Phase Calculator
- MCA Calculator
- Mean Sac Diameter Calculator
- Nuchal Translucency Calculator
- Ovulation Calculator
- Pearl Index Calculator
- Period Calculator
- Pregnancy Test Calculator
- Pregnancy Weight Gain Calculator
- Progesterone to Estrogen Ratio Calculator
- Reverse Due Date Calculator
- Sperm Analysis Calculator
- Stillbirth Risk Calculator
- Testosterone to Estradiol Ratio Calculator
- VBAC Calculator (Vaginal Birth After Cesarean Section)
- VTE Risk Score Calculator in Pregnancy
Hematology calculators
27 calculators- 4T Score Calculator | HIT
- Absolute Eosinophil Count Calculator
- Absolute Lymphocyte Count Calculator
- Absolute Reticulocyte Count Calculator
- Age-Adjusted D-dimer Calculator
- Albumin Globulin Ratio Calculator
- Allowable Blood Loss Calculator
- ANC Calculator without Bands
- ANC Calculator — Absolute Neutrophil Count
- Blood Donation Due Date Calculator
- Blood Donor Calculator
- Blood Type Calculator
- Blood Volume Calculator
- Corrected Reticulocyte Count Calculator
- DIC Syndrome Calculator
- Diffuse Large B-cell Lymphoma Prognosis Calculator
- Fresh Frozen Plasma Dose Calculator
- Hematocrit to Hemoglobin Ratio Calculator
- INR Calculator
- Iron Deficiency Calculator
- Mentzer Index Calculator
- MIPI Calculator (Mantle Cell Lymphoma International Prognostic Index)
- mmol/L to mg/dL Calculator
- NLR Calculator
- Plasma Volume Calculator
- RBC Indices Calculator | What is MCHC?
- Transferrin Saturation Calculator
Intensive & emergency care calculators
16 calculators- Alvarado Score Calculator
- APACHE II Calculator
- GCS Calculator (Glasgow Coma Scale)
- ICH Score Calculator
- Injury Severity Score Calculator
- LRINEC Score Calculator
- MEWS Score Calculator
- NEDOCS Calculator
- NIH Stroke Scale Calculator
- qSOFA Score Calculator
- Revised Trauma Score Calculator
- SAPS II Calculator: Simplified Acute Physiology II Score Calculator
- SCORAD Calculator - SCORing Atopic Dermatitis
- Sepsis Calculator (Sepsis-3 Criteria)
- Shock Index Calculator
- SOFA Score Calculator
Other calculators
16 calculators- 20/20 Vision Calculator for 2020
- Aldrete Score Calculator
- BASDAI Score Calculator
- Beighton Score Calculator
- Berg Balance Test Calculator
- Centor Score Calculator (Modified/McIsaac)
- DASI Calculator (Duke Activity Status Index)
- Dog Walking Benefits Calculator
- EASI Score Calculator
- Fatigue Severity Scale Calculator
- Free Testosterone Calculator — with Bioavailable Levels
- Gut Microbiome Score Calculator
- Hot Car Calculator
- Noise Pollution Calculator - Maximal Exposure Time
- Pokémon GO Weight Loss Calculator
- Time Of Death Calculator
Pediatric calculators
15 calculators- Adjusted Age Calculator
- APGAR Score Calculator
- Baby Eye Color Calculator
- Baby Formula Calculator
- Baby's Milk Intake Calculator
- Exclusive Pumping Calculator
- GIR calculator (Glucose Infusion Rate)
- Height Calculator
- Maintenance Fluids Calculator
- Newborn Hyperbilirubinemia Assessment Calculator
- PECARN Calculator
- Pediatric Blood Pressure Calculator
- Pediatric Blood Transfusion Volume Calculator
- Pediatric Blood Volume Calculator
- Pediatric GFR Calculator - Glomerular Filtration Rate
Percentile calculators
9 calculatorsPsychiatry & psychology calculators
5 calculatorsPulmonary calculators
19 calculators- Aa Gradient Calculator
- BODE Index Calculator
- CURB-65 Calculator
- Dead Space Calculator
- Endotracheal Tube Size Calculator
- FEV1/FVC Ratio Calculator
- Light's Criteria Calculator for Pleural Effusion
- Lung Cancer Risk Calculator
- Lung Capacity Calculator
- Lung Nodule Growth Rate Calculator
- Mean Airway Pressure Calculator
- Oxygenation Index Calculator
- Peak Flow Calculator — Estimated Peak Expiratory Flow
- PF Ratio Calculator
- PSI Calculator
- Qp/Qs Calculator
- RSBI Calculator - Rapid Shallow Breathing Index
- Tidal Volume Calculator
- Vital Capacity Calculator
Radiology calculators
4 calculatorsRedundant calculators
16 calculators- 90 Minute Sleep Cycle Calculator
- Blood Pregnancy Test: What Do HCG Results Mean?
- Circadian Rhythm Calculator
- Excessive Weight Gain in Pregnancy
- How to Maintain or Lose Weight During Pregnancy?
- Is BMI (Body Mass Index) a Weight Gain Indicator in Pregnancy?
- Positive Pregnancy Test at 3 Weeks Pregnant: Possible or Not?
- Pregnancy Weight Gain: Week by Week Breakdown
- REM Sleep Calculator
- Sleep Cycle Calculator
- Sleep Time Calculator
- Twin Pregnancy Weight Gain Calculator
- Urine Home Pregnancy Test
- Wake Up Calculator
- What is a False Negative Pregnancy Test?
- What to do after you get a positive pregnancy test?
Urology & nephrology calculators
21 calculators- Adrenal Washout Calculator
- Albumin Creatinine Ratio Calculator
- Bladder Volume Calculator
- BUN Creatinine Ratio Calculator
- Creatinine Clearance Calculator
- EORTC Bladder Cancer Recurrence and Progression Calculator
- FENa Calculator (Fractional Excretion of Sodium)
- FEUrea Calculator — Acute Kidney Injury Cause Differentiation
- GFR Calculator - Estimated Glomerular Filtration Rate
- Kidney Failure Risk Calculator
- Kidney STONE Calculator for Percutaneous Neprolithotomy
- Kt/V Calculator Daugirdas
- Metastatic Prostate Cancer Prognosis Calculator
- Prostate Volume Calculator
- Protein Creatinine Ratio Calculator
- PSA Density Calculator
- PSA Doubling Time Calculator
- Quiz: Protein Creatinine Ratio Calculator
- TTKG Calculator - Transtubular Potassium Gradient
- Urine Output Calculator
- URR Calculator - Urea Reduction Ratio
The result is for information only and does not replace a doctor's advice.