Enter Age, Gender and Weight (lbs) and the remaining scenario settings to review creatinine clearance with this tool. The estimate is expressed as a clearance volume per minute.
Cockcroft–Gault estimate = [(140 − Age) × Weight] ÷ (72 × Serum creatinine), with the applicable sex adjustment.The calculation links Age, Gender and Weight (lbs) to creatinine clearance. The estimate is expressed as a clearance volume per minute. It differs from eGFR indexed to a standard body surface area.
Enter Age, Gender and Weight (lbs) and the remaining scenario settings to review creatinine clearance with this tool. The estimate is expressed as a clearance volume per minute.
Estimate creatinine clearance using the Cockcroft–Gault relationship and the entered patient measurements. Pay particular attention to creatinine and body-weight conventions.
The estimate is expressed as a clearance volume per minute. It differs from eGFR indexed to a standard body surface area.
Prepare Age, Gender, Weight (lbs), Height ft in — height Feet, Height ft in, Serum creatinine (mg/dL), 24-hour urine collection (optional) mL and Urine creatinine (optional) mg/dL. Check serum-creatinine units and the weight convention required by the clinical context before comparing the estimate.
The estimate is expressed as a clearance volume per minute. It differs from eGFR indexed to a standard body surface area. Weight selection and patient characteristics affect applicability. The result must not independently determine a medicine dose or substitute for clinical kidney assessment.
Use the full settings in the worked-example table. They produce Creatinine Clearance: 86.8. Compare the method and units as well as the displayed number.
The displayed relationship is Cockcroft–Gault estimate = [(140 − Age) × Weight] ÷ (72 × Serum creatinine), with the applicable sex adjustment. Check serum-creatinine units and the weight convention required by the clinical context before comparing the estimate.
Weight selection and patient characteristics affect applicability. The result must not independently determine a medicine dose or substitute for clinical kidney assessment. For personal care, discuss the measurements and method with a qualified clinician.
Worked creatinine clearance calculator example. Set Age = 45; Gender = Male; Weight (lbs) = 160; Height ft in — height Feet = 5; Height ft in = 9; Serum creatinine (mg/dL) = 1.2; 24-hour urine collection (optional) mL = 1500; Urine creatinine (optional) mg/dL = 100. The corresponding output is Creatinine Clearance: 86.8. The estimate is expressed as a clearance volume per minute.
Estimate creatinine clearance using the Cockcroft–Gault relationship and the entered patient measurements. Pay particular attention to creatinine and body-weight conventions.
Check serum-creatinine units and the weight convention required by the clinical context before comparing the estimate.
| Field | Example value | Entry check |
|---|---|---|
| Age | 45 | Use the stated unit and the measurement required by this model. |
| Gender | Male | Use the option required by the selected estimation model. |
| Weight (lbs) | 160 | Use the measurement unit printed beside this field and a consistent measuring technique. |
| Height ft in — height Feet | 5 | Keep feet and any inch remainder in their separate fields. |
| Height ft in | 9 | Keep feet and any inch remainder in their separate fields. |
| Serum creatinine (mg/dL) | 1.2 | Use the stated unit and the measurement required by this model. |
| 24-hour urine collection (optional) mL | 1500 | Use the stated unit and the measurement required by this model. |
| Urine creatinine (optional) mg/dL | 100 | Use the stated unit and the measurement required by this model. |
Relationship used for this example: Cockcroft–Gault estimate = [(140 − Age) × Weight] ÷ (72 × Serum creatinine), with the applicable sex adjustment.
The estimate is expressed as a clearance volume per minute. It differs from eGFR indexed to a standard body surface area.
| Output | Displayed result |
|---|---|
| Creatinine Clearance | 86.8 |
With these settings, creatinine clearance is 86.8. Use the same units and calculation mode when reproducing this example.
The estimate is expressed as a clearance volume per minute. It differs from eGFR indexed to a standard body surface area. Weight selection and patient characteristics affect applicability. The result must not independently determine a medicine dose or substitute for clinical kidney assessment.
Replace the illustrative age value (45) with your own value, then complete the other inputs for the same scenario. Check serum-creatinine units and the weight convention required by the clinical context before comparing the estimate.