Calculator
Result
Answer will appear hereEnter the values above and press Calculate to see the answer, step-by-step solution, and formula used.
How the result is calculated
CrCl = ((140 − age) × weight_kg × [0.85 if female]) / (72 × Scr)
Creatinine Clearance Calculator
Use this calculator to calculate creatinine clearance using a clear formula and simple inputs.
Explanation
What this calculator does
Creatinine Clearance Calculator helps you calculate the result using clear inputs, a formula, and practical examples.
This calculator is for general information only and is not medical advice or a diagnosis.
How LearnLinx Calculates This Result
Formula
CrCl = ((140 − age) × weight_kg × [0.85 if female]) / (72 × Scr)
Enter your values and press Calculate to see each computation step with your numbers plugged into this formula.
Example
Enter your values, calculate the result, and review the formula used for the answer.
When to use it
Use it when you need a quick result for study, planning, documentation, or checking a manual calculation.
Common mistakes
- Using actual body weight when a protocol expects IBW or AdjBW.
- Mixing creatinine units.
- Applying Cockcroft–Gault to unstable AKI the same way as steady outpatient labs.
Frequently asked questions
Which formula?
Cockcroft–Gault using age, weight, sex, and serum creatinine.
Weight choice?
Some protocols use IBW or AdjBW instead of actual weight.
What formula does the Creatinine Clearance Calculator use?
It uses: CrCl = ((140 − age) × weight_kg × [0.85 if female]) / (72 × Scr). The result page also shows a step-by-step breakdown of how your answer was calculated.
Is the Creatinine Clearance Calculator free to use?
Yes. All LearnLinx calculators are completely free with no signup required. Signing in is optional and only adds a 60-day history of your calculations.
Is this medical advice?
No. This calculator provides general information only and is not medical advice or a diagnosis. Consult a qualified health professional for personal guidance.