Medical Calculations
Calculate GFR, creatinine clearance, body surface area and life expectancy. Free clinical calculators based on validated medical formulas.
4 free calculators available
GFR Calculator (eGFR) - Kidney Function Test
Calculate your estimated Glomerular Filtration Rate (eGFR) using the CKD-EPI equation. Assess kidney function and CKD stages.
Creatinine Clearance Calculator - Cockcroft-Gault Formula
Calculate creatinine clearance using the Cockcroft-Gault formula. Estimate kidney function and glomerular filtration.
BSA Calculator - Body Surface Area for Drug Dosing
Calculate Body Surface Area (BSA) using Du Bois, Mosteller, Haycock formulas. Essential for chemotherapy dosing, cardiac index, and medical calculations.
Life Expectancy Calculator - How Long Will You Live?
Calculate your life expectancy based on lifestyle, health factors, and demographics. Get personalized longevity insights and actionable recommendations to add years to your life.
Medical Calculations Calculators
4 medical calculations calculators in this category. Each one names the formula it uses and the guideline or study the formula came from — so you can verify the math instead of trusting a black box. Calculations run in your browser; nothing you enter is sent anywhere.
Medical calculations numbers are screening tools, not diagnoses. They are useful for spotting outliers and tracking changes over time, less useful for telling you what to do about a borderline result. For that, take the number to a clinician who can read it in the context of your full history.
Available Calculators
- GFR Calculator (eGFR) - Kidney Function Test — Calculate your estimated Glomerular Filtration Rate (eGFR) using the CKD-EPI equation. Assess kidney function and CKD stages.
- Creatinine Clearance Calculator - Cockcroft-Gault Formula — Calculate creatinine clearance using the Cockcroft-Gault formula. Estimate kidney function and glomerular filtration.
- BSA Calculator - Body Surface Area for Drug Dosing — Calculate Body Surface Area (BSA) using Du Bois, Mosteller, Haycock formulas. Essential for chemotherapy dosing, cardiac index, and medical calculations.
- Life Expectancy Calculator - How Long Will You Live? — Calculate your life expectancy based on lifestyle, health factors, and demographics. Get personalized longevity insights and actionable recommendations to add years to your life.