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Creatinine Clearance (Cockcroft-Gault)

Health
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Estimate creatinine clearance using the Cockcroft-Gault equation, a measure of kidney function.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

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

Step 2

Read Creatinine Clearance (Female), Creatinine Clearance (Male), and Estimated Creatinine Clearance 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.

Young Adult Male

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

Creatinine Clearance (Female): 97.39583333 mL/min; Creatinine Clearance (Male): 114.5833333 mL/min; Estimated Creatinine Clearance: 114.5833333 mL/min

Elderly Female

Age: 80 years; Weight: 60 kg; Serum Creatinine: 1.2 mg/dL; Gender: Female

Creatinine Clearance (Female): 35.41666667 mL/min; Creatinine Clearance (Male): 41.66666667 mL/min; Estimated Creatinine Clearance: 35.41666667 mL/min

Middle-Aged Male

Age: 55 years; Weight: 85 kg; Serum Creatinine: 0.9 mg/dL; Gender: Male

Creatinine Clearance (Female): 94.77237654 mL/min; Creatinine Clearance (Male): 111.4969136 mL/min; Estimated Creatinine Clearance: 111.4969136 mL/min

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Important

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