What is Creatinine Clearance Calculator?
Creatinine Clearance Calculator helps you estimate creatinine clearance using the stated equation and patient measurements.
The main result is estimated creatinine clearance. The formula, example and assumptions below explain how to interpret it.
How to use Creatinine Clearance Calculator
Use the example to get familiar with the form, then enter your own figures. Any rates in the example are illustrative. Check the field labels and units before calculating.
- Gather age, body weight used for estimate (kg), serum creatinine (mg/dL) and sex used in the formula. Use values from the same situation or reporting period.
- Replace the example age with your own value, then complete the other fields. Check the displayed units and each selected option.
- Select Calculate and read estimated creatinine clearance. Change one input and calculate again to compare a second scenario. Reset restores the original example.
- Enter age, at least 18 and at most 100. Use a whole number.
- Enter body weight used for estimate in kg, at least 20 and at most 300. Decimals are accepted.
- Enter serum creatinine in mg/dL, at least 0.1 and at most 20. Decimals are accepted.
- Choose sex used in the formula from Male and Female.
Creatinine Clearance Calculator: a worked example
With the inputs below, the result is 87.5 mL/min (estimated creatinine clearance). Follow the example, then replace these illustrative values with your own.
| Input or output | Example value |
|---|---|
| Age | 50 |
| Body weight used for estimate (kg) | 70 kg |
| Serum creatinine (mg/dL) | 1 mg/dL |
| Sex used in the formula | Male |
| Estimated creatinine clearance | 87.5 mL/min |
Understanding the Creatinine Clearance result
The main output is estimated creatinine clearance, expressed in mL/min. It applies to the inputs and operation you selected.
Displayed results use a readable number of decimal places. When checking a result by hand, keep extra precision until the last step. To compare scenarios, change one input at a time and keep the others fixed.
Creatinine Clearance Calculator: assumptions and common mistakes
A useful estimate starts with the right inputs. Check the following assumptions and limits before applying the result to your situation.
- Adult estimate for stable creatinine. Choice of actual/ideal/adjusted weight matters. Do not use this calculator alone to choose medication doses.
- Health estimates are context-dependent. Age, pregnancy, illness, medication and individual measurements can affect interpretation; these tools do not diagnose a condition.
For wider guidance, visit World Health Organization. The formula and scope of this specific tool are stated on this page.
