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Creatinine Clearance Calculator (Cockcroft-Gault)

Health
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Estimates kidney function based on serum creatinine, age, weight, and gender.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Serum Creatinine, Age, Weight, and Gender in the units shown.

Step 2

Read Creatinine Clearance (CrCl) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Healthy Male

Serum Creatinine: 1 mg/dL; Age: 30 years; Weight: 75 kg; Gender: Male

Creatinine Clearance (CrCl): 114.5833333 mL/min

Elderly Female

Serum Creatinine: 1.2 mg/dL; Age: 75 years; Weight: 60 kg; Gender: Female

Creatinine Clearance (CrCl): 38.36805556 mL/min

Young Male with High Creatinine

Serum Creatinine: 2.5 mg/dL; Age: 25 years; Weight: 80 kg; Gender: Male

Creatinine Clearance (CrCl): 51.11111111 mL/min

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Important

Use the result as an estimate and confirm any medical decisions with a qualified professional.