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.
Creatinine Clearance Calculator - Estimate Kidney Filtration
Compute creatinine clearance using the Cockcroft-Gault equation to evaluate kidney function.
Simplified ASCVD Educational Risk Estimate
Estimate simplified educational 10-year ASCVD risk using age, cholesterol, blood pressure, smoking and diabetes inputs. Not an official clinical calculator or medical advice.
Insulin Bolus Calculator - Carb Counting and Correction Doses
Estimate rapid-acting insulin doses using carb counts, current blood glucose, and correction factors.
Loading Dose Calculator - Rapid Therapeutic Level
Estimate the loading dose needed to quickly achieve a target drug concentration using volume of distribution and bioavailability.
Medication Dosage Calculator - Weight Based Guidance
Compute medication dosage using patient weight and drug concentration. Always consult a healthcare professional before use.
Oxygen Delivery & Respiratory Support Calculator (FiO2 & ROX Index)
Estimate FiO2 by oxygen device and flow, then compute the ROX index, S/F and P/F ratios, alveolar PAO2, A-a gradient, oxygen content, and O2 cylinder runtime.
Insulin Sensitivity Factor Calculator - Diabetes Management Aid
Estimate your insulin sensitivity factor (ISF) from total daily dose using the 1500/1700/1800 rules (mg/dL and mmol/L). Educational estimate—confirm with you...
Drug Pharmacokinetics & Steady-State Concentration Calculator - Blood Level Accumulation
Calculate blood concentration levels, steady-state plasma concentration, and accumulation factor for repeated drug dosing based on half-life.
All calculators in this cluster
Browse 33 calculators matched to this topic, or return to the Health category.
3D Printer Resin Post-Cure Dose Calculator (UV Exposure Time & Rotations)
Calculate UV post-cure exposure time and turntable rotations from a resin’s target dose (J/cm²), measured intensity (mW/cm²), coverage, and thermal limits.
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 ADHD Self-Report Scale (ASRS) Calculator
Complete the short ASRS questionnaire to screen for adult attention deficit hyperactivity disorder.
Antidepressant Taper Schedule Calculator
Create a gradual antidepressant taper schedule. Enter your current dose, goal dose, taper duration, and adjustment interval to generate a step-down plan to r...
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 - Can You Donate?
Check basic whole blood donation eligibility using age, weight, hemoglobin (g/dL), and weeks since your last donation. Includes criteria, formula notes, and an example.
Blood Type Compatibility Calculator - Safe Transfusion Checker
Check if donor and recipient blood types are compatible for transfusion using ABO and Rh rules. Understand antigen-antibody interactions and learn how universal donors and recipients work.
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.
Continuous Glucose Monitor vs. Fingerstick Cost Comparison Calculator
Use this CGM vs. fingerstick cost calculator to estimate total and monthly costs over your chosen time horizon, including sensors, strips, meters, transmitte...
Contrast Agent Dosage Calculator | Estimate CT Contrast Volume
Estimate iodinated contrast volume in milliliters from patient weight, iodine dose rate, and contrast concentration for CT and angiography planning.
Creatinine Clearance Calculator - Estimate Kidney Filtration
Compute creatinine clearance using the Cockcroft-Gault equation to evaluate kidney function.
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.
Drug Pharmacokinetics & Steady-State Concentration Calculator - Blood Level Accumulation
Calculate blood concentration levels, steady-state plasma concentration, and accumulation factor for repeated drug dosing based on half-life.
eGFR Kidney Function Calculator (CKD-EPI 2021)
Estimate adult eGFR using the 2021 CKD-EPI race-free creatinine equation from age, serum creatinine, and sex. Educational kidney function calculator; not a substitute for medical care.
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 Vaccination Coverage Calculator
Determine the proportion of a population that must be vaccinated to achieve herd immunity given 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 total daily dose using the 1500/1700/1800 rules (mg/dL and mmol/L). Educational estimate—confirm with you...
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 - Rapid Therapeutic Level
Estimate the loading dose needed to quickly achieve a target drug concentration using volume of distribution and bioavailability.
Medication Dosage Calculator - Weight Based Guidance
Compute medication dosage using patient weight and drug concentration. Always consult a healthcare professional before use.
Medication Half-Life Calculator - Estimate Drug Elimination
Calculate remaining medication level after a given time using half-life principles and plan dosing intervals.
Medication Tapering Schedule Calculator | Discussion Worksheet & Prescriber Step Visualizer
Use this medication tapering schedule calculator page as a safer discussion worksheet and prescriber step visualizer. Record questions, symptoms, appointment details, and manually entered dose steps without generating dosing advice.
Navy PRT Score Calculator (Estimator) | Push-ups, Plank, 1.5-Mile Run
Estimate your U.S. Navy Physical Readiness Test score with a planning-focused calculator for push-ups, forearm plank, and the 1.5-mile run. Includes formulas, assumptions, a worked example, interpretation guidance, and an optional readiness mini-game.
Oxygen Delivery & Respiratory Support Calculator (FiO2 & ROX Index)
Estimate FiO2 by oxygen device and flow, then compute the ROX index, S/F and P/F ratios, alveolar PAO2, A-a gradient, oxygen content, and O2 cylinder runtime.
PHQ-9 Depression Score Calculator - Mental Health Screening
Calculate your PHQ-9 depression score to understand symptom severity and discuss results with a professional.
Pittsburgh Sleep Quality Index Calculator | Simplified PSQI Screener
Use a simplified Pittsburgh Sleep Quality Index calculator to screen recent sleep quality, estimate a PSQI-style score, and interpret when sleep concerns may need professional follow-up.
Pregnancy Due Date & Gestational Age Calculator - Naegele Rule
Estimate your due date, current gestational age, and trimester using last menstrual period, conception date, or ultrasound. See how your date was calculated...
Simplified ASCVD Educational Risk Estimate
Estimate simplified educational 10-year ASCVD risk using age, cholesterol, blood pressure, smoking and diabetes inputs. Not an official clinical calculator or medical advice.
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 Cold Chain Risk Calculator - Estimate Potency Loss
Estimate potency loss and failure risk when vaccines experience temperature excursions using duration, temperature, and sensitivity.
Y-BOCS OCD Score Calculator | Yale-Brown Obsessive Compulsive Scale
Use this Y-BOCS OCD score calculator to total the 10 Yale-Brown Obsessive Compulsive Scale items, review obsession and compulsion subscores, and understand common severity ranges. Educational only, not a diagnosis.