Creatinine Clearance (CrCl) Calculator Free & Online

A Creatinine Clearance (CrCl) Calculator is a medical tool used to estimate how well your kidneys are filtering waste from the blood. It measures kidney function by calculating the creatinine clearance (CrCl) rate.

This calculator supports:

• 24-hour urine creatinine clearance
• Estimated CrCl (Cockcroft-Gault)
• Pediatric CrCl calculator
• 24-hour urine creatinine clearance calculator

What Is Creatinine Clearance?

Creatinine is a waste product made by muscles. Healthy kidneys remove creatinine through urine.
Creatinine clearance shows how efficiently the kidneys are working.

The result is measured in:$$\text{mL/min}$$mL/min

Why Use a Creatinine Clearance Calculator?

✔ Monitors kidney health
✔ Helps adjust drug dosage
✔ Detects kidney disease
✔ Easy & fast calculation
✔ Mobile-friendly
✔ No manual math

Estimated CrCl Calculator (Cockcroft-Gault Formula)

This is the most common method for adults:$$CrCl = \frac{(140 – \text{Age}) \times \text{Weight}}{72 \times \text{Serum Creatinine}}$$CrCl=72×Serum Creatinine(140−Age)×Weight​

For females:$$CrCl \times 0.85$$CrCl×0.85

Example:

Input	Value
Age	60
Weight	70 kg
Serum Creatinine	1.2 mg/dL

Result:$$CrCl ≈ 58 \text{ mL/min}$$CrCl≈58 mL/min

24-Hour Urine Creatinine Clearance Calculator

This method uses urine collection:$$CrCl = \frac{U \times V}{P \times T}$$CrCl=P×TU×V​

Where:

Symbol	Meaning
U	Urine creatinine
V	Urine volume
P	Plasma creatinine
T	Time (minutes)

This method is more accurate for certain patients.

Pediatric CrCl Calculator (Schwartz Formula)

Used for children:$$CrCl = \frac{k \times \text{Height}}{\text{Serum Creatinine}}$$CrCl=Serum Creatininek×Height​

Where:

• k = 0.55 (children)
• Height in cm

Normal Creatinine Clearance Range

Age Group	Normal CrCl
Adult Male	97–137 mL/min
Adult Female	88–128 mL/min
Elderly	Lower than adults
Children	Depends on age

When to Use a CrCl Calculator?

• Kidney disease monitoring
• Drug dosage adjustment
• ICU patients
• Chronic illness
• Diabetes / hypertension

CrCl vs eGFR

Feature	CrCl	eGFR
Uses weight	Yes	No
Drug dosing	Best	Less accurate
Urine test	Optional	Not required

How to Use This Calculator

1. Enter age, weight, and creatinine
2. Choose male/female
3. Click Calculate
4. Get instant CrCl result

The Creatinine Clearance Calculator is an essential tool for doctors, nurses, and patients. It supports:

✔ Estimated CrCl
✔ 24-hour urine CrCl
✔ Pediatric CrCl
✔ Fast & accurate results