# Creatinine Clearance Calculator

> Estimate creatinine clearance (CrCl) for kidney function and drug dosing using the standard Cockcroft-Gault formula.

**URL:** https://www.calculatoranswers.com/creatinine-clearance-calculator
**Category:** Health

## Quick Answer

Enter age, sex, weight, and serum creatinine to estimate creatinine clearance (CrCl) via the Cockcroft-Gault formula. Used for medication dosing and CKD staging.

## Definition

A creatinine clearance calculator estimates kidney function (specifically the glomerular filtration rate) using the Cockcroft-Gault formula, which incorporates a patient's age, sex, weight, and serum creatinine level. The result, expressed in mL/min, is used clinically to assess kidney health, stage chronic kidney disease, and adjust medication doses for drugs cleared by the kidneys. It remains a standard reference in FDA drug labeling despite the more recent CKD-EPI eGFR formula.

## How to Use

1. **Enter patient details** — Input the patient's age, biological sex, and current weight.
2. **Enter serum creatinine** — Input the measured serum creatinine level from the patient's lab results.
3. **Read the clearance rate** — View the estimated creatinine clearance (CrCl) in mL/min calculated via the Cockcroft-Gault equation.

## Disclaimer

This calculator provides estimates for educational and planning purposes. Always consult a qualified professional for specific advice on financial, medical, legal, or other regulated decisions.

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