Health cluster
Medical & Clinical Calculators
Clinical scores, medication dosing, lab value interpretation, pregnancy timelines, and healthcare cost comparisons — from eGFR and cholesterol to insulin dosing and Medicare planning.
Top calculators
A short starting set for the most common medical & clinical calculators workflows.
ASCVD 10-Year Risk Estimate Calculator for Cholesterol, Blood Pressure, Smoking, and Diabetes
Estimate a simplified educational 10-year ASCVD risk from age, cholesterol, HDL, systolic blood pressure, smoking, and diabetes. This is not an official clinical score.
Creatinine Clearance Calculator | Cockcroft-Gault CrCl Estimate
Estimate creatinine clearance with the Cockcroft-Gault equation to support renal drug-dosing decisions.
Insulin Bolus Calculator - Carb Counting and Correction Doses
Estimate rapid-acting insulin doses using carb counts, current blood glucose, and correction factors.
Weight-Based Medication Dose and Liquid Volume Calculator
Calculate a weight-based medication dose in mg and the matching liquid volume in mL from a prescribed mg/kg dose and product concentration. Verify every dose with a licensed healthcare professional.
Medication Tapering Schedule Calculator & Discussion Worksheet
A medication tapering schedule worksheet: record the drug, class, current dose, symptoms, and prescriber-written dose steps. It does not generate dosing advice.
Insulin Sensitivity Factor Calculator - Diabetes Management Aid
Estimate your insulin sensitivity factor (ISF) from your total daily insulin dose using the 1500, 1700, or 1800 rule, in mg/dL and mmol/L. Educational estimate only.
Medication Half-Life Calculator | Estimate How Long a Dose Lingers
Estimate how much medication remains after a chosen number of hours, track elapsed half-lives, and gauge when a dose has mostly cleared.
Loading Dose Calculator - Estimate a Rapid Pharmacokinetic Starting Dose
Estimate a loading dose from target concentration, volume of distribution, and bioavailability for IV or oral dosing when rapid therapeutic levels matter.
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Browse 33 calculators matched to this topic, or return to the Health category.
A1C to Average Glucose Converter | HbA1c eAG Calculator
Convert HbA1c to estimated average glucose, or average glucose back to A1C, using the ADAG relationship. Learn how to read the result and when it can mislead.
Adult eGFR Calculator Using the 2021 CKD-EPI Creatinine Equation
Estimate adult kidney filtration (eGFR) with the 2021 CKD-EPI race-free creatinine equation using age, serum creatinine, and sex; educational use only.
Antidepressant Taper Schedule Calculator – Linear and Proportional Planner
Compare linear and proportional antidepressant taper schedules using a current dose, goal dose, duration, and adjustment interval. Educational planning aid for discussion with a prescriber.
ASCVD 10-Year Risk Estimate Calculator for Cholesterol, Blood Pressure, Smoking, and Diabetes
Estimate a simplified educational 10-year ASCVD risk from age, cholesterol, HDL, systolic blood pressure, smoking, and diabetes. This is not an official clinical score.
ASRS ADHD Score Calculator | Adult ADHD Self-Report Scale
Use the ASRS ADHD score calculator to total the six screening items, count frequent responses, and read the result as a conversation starter with a clinician.
AUDIT Alcohol Use Disorder Score Calculator
Calculate your AUDIT alcohol use disorder score from the 10 WHO questions, screen your drinking risk level, and learn what the result means. Not a diagnosis.
Blood Donation Eligibility Calculator (FDA and Red Cross Rules)
Check blood donation eligibility against FDA 21 CFR 630 and American Red Cross criteria: age, weight, hemoglobin, blood volume and 56, 112, 7 or 28-day intervals.
Blood Type Compatibility Calculator - ABO, Rh and Components
Check ABO and RhD transfusion compatibility for red cells, plasma and platelets, see which antibody would react, and learn why the plasma rule inverts the red-cell rule.
Cardiac Output Calculator - Estimate Heart Pumping Capacity
Determine cardiac output in liters per minute from heart rate and stroke volume, review worked examples, and explore related heart health calculators.
CGM vs. Fingerstick Cost Comparison Calculator
Compare continuous glucose monitor costs with fingerstick testing costs over any horizon, including sensors, transmitters, receivers, strips, lancets, and meter replacement.
Contrast Agent Dosage Calculator for CT and Angiography | Estimate Iodinated Contrast Volume
Calculate iodinated contrast volume in milliliters from patient weight, iodine target in mg I/kg, and product concentration in mg I/mL for CT and angiography planning.
Creatinine Clearance Calculator | Cockcroft-Gault CrCl Estimate
Estimate creatinine clearance with the Cockcroft-Gault equation to support renal drug-dosing decisions.
CVSS Vulnerability Score Calculator - Evaluate Security Risks
Calculate the CVSS v3 base score for security vulnerabilities by selecting metrics like attack vector, complexity, and impact.
Fallout Shelter Radiation Dose Calculator
Project cumulative radiation dose inside a shelter after nuclear fallout using initial intensity, protection factor, decay half-life, and stay duration.
Health Insurance Plan Comparison Calculator for Premiums, Deductibles, Copays, and Out-of-Pocket Costs
Compare up to three health insurance plans by estimated annual cost. This calculator combines premiums, deductibles, copays, coinsurance, prescriptions, surgery assumptions, and out-of-pocket maximums for HMO, PPO, EPO, and HDHP options.
Herd Immunity Coverage Calculator: R0 and Vaccine Effectiveness
Estimate the vaccination coverage needed for a herd-immunity threshold using a basic reproduction number (R0) and vaccine effectiveness.
Insulin Bolus Calculator - Carb Counting and Correction Doses
Estimate rapid-acting insulin doses using carb counts, current blood glucose, and correction factors.
Insulin Sensitivity Factor Calculator - Diabetes Management Aid
Estimate your insulin sensitivity factor (ISF) from your total daily insulin dose using the 1500, 1700, or 1800 rule, in mg/dL and mmol/L. Educational estimate only.
LDL Cholesterol Estimator - Friedewald Formula
Estimate your low-density lipoprotein (LDL) cholesterol using the Friedewald formula from standard lab values for total cholesterol, HDL, and triglycerides...
Loading Dose Calculator - Estimate a Rapid Pharmacokinetic Starting Dose
Estimate a loading dose from target concentration, volume of distribution, and bioavailability for IV or oral dosing when rapid therapeutic levels matter.
Medication Half-Life Calculator | Estimate How Long a Dose Lingers
Estimate how much medication remains after a chosen number of hours, track elapsed half-lives, and gauge when a dose has mostly cleared.
Medication Tapering Schedule Calculator & Discussion Worksheet
A medication tapering schedule worksheet: record the drug, class, current dose, symptoms, and prescriber-written dose steps. It does not generate dosing advice.
Navy PRT Score Calculator: Official OPNAVINST 6110.1L Tables
Score the Navy PRT from the official OPNAVINST 6110.1L Guide-5A tables: push-ups, forearm plank and cardio points, category level and next-level targets.
Oxygen Delivery, FiO₂ and ROX Index Calculator
Estimate delivered FiO₂ and calculate the ROX index, S/F and P/F ratios, alveolar PAO₂, A–a gradient, arterial oxygen content, and oxygen-cylinder runtime.
PHQ-9 Depression Symptom Score Calculator | 9-Item Total
Add nine PHQ-9 symptom-frequency responses to see the 0–27 depression screening score and its severity band.
Pittsburgh Sleep Quality Index Calculator | Simplified PSQI Screener
Score seven Pittsburgh Sleep Quality Index components, including sleep efficiency from your bed and wake times, and see how the total reads against the standard cutoff.
Pregnancy Due Date, Gestational Age & Trimester Calculator
Estimate a due date and gestational age from an LMP, conception date, or dating scan using Naegele's rule, cycle-length adjustment, and ACOG term definitions.
Resin UV Post-Cure Dose Calculator | Exposure Time, Rotations & Heat
Calculate a resin print's UV post-cure exposure time, full turntable rotations, delivered dose, and estimated chamber heat from target dose, measured intensity, coverage, and thermal limits.
Steady-State Drug Concentration Calculator for Peak, Trough and Loading Dose
Calculate one-compartment steady-state drug peak, trough and average concentrations, clearance, accumulation ratio, loading dose and time to steady state.
STOP-BANG Sleep Apnea Risk Calculator
Calculate a STOP-BANG score from snoring, tiredness, observed apnea, blood pressure, BMI, age, neck circumference, and sex to estimate sleep apnea screening risk.
Vaccine Temperature Excursion Potency Risk Calculator
Model estimated vaccine potency loss during a temperature excursion from degrees above the limit, exposure duration, formulation sensitivity, and starting potency.
Weight-Based Medication Dose and Liquid Volume Calculator
Calculate a weight-based medication dose in mg and the matching liquid volume in mL from a prescribed mg/kg dose and product concentration. Verify every dose with a licensed healthcare professional.
Y-BOCS OCD Score Calculator | Yale-Brown Obsessive Compulsive Scale
Total the 10 Yale-Brown Obsessive Compulsive Scale items, see obsession and compulsion subscores, and read common Y-BOCS severity ranges. Not a diagnosis.