Calculated Creatinine Clearance Formula and Calculator
Patient's age: 
Patient's height:   inches
Patient's Actual Body Weight:   kg
Patient's serum creatinine:   mg/dl
Patient's sex: 
 
Calculated Creatinine Clearance:    
 

Formula  
Males: $$\frac{(140 - \text{patient's age}) \times \text{patient's weight in kilograms}}{72 \times \text{patient's serum creatinine}}$$
 
Females: $$\frac{(140 - \text{patient's age}) \times \text{patient's weight in kilograms}}{72 \times \text{patient's serum creatinine}} \times .85$$