How to use the creatinine clearance calculator
Estimate creatinine clearance from age, weight, serum creatinine and sex, used for drug dosing. Enter age, body weight, serum creatinine, sex in the fields above; the creatinine clearance is computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “Cockcroft Gault”, “creatinine clearance”, “kidney clearance for dosing”, “calculate creatinine clearance”, “find creatinine clearance”.
Formula
Variables
- age — Age (years)
- w — Body weight (kg)
- scr — Serum creatinine (mg/dL)
- sex — Sex
Worked example
With age = 60 years, body weight = 70 kg, serum creatinine = 1.1 mg/dL, sex = Male, the calculator gives creatinine clearance ≈ 70.70707 mL/min.
Frequently asked questions
What is the creatinine clearance calculator used for?
Estimate creatinine clearance from age, weight, serum creatinine and sex, used for drug dosing. It helps with questions such as “Cockcroft Gault”, “creatinine clearance”, “kidney clearance for dosing”.
What is the formula for the creatinine clearance calculation?
Creatinine clearance (mL/min) = (140-age) × w / (72 × scr) × sex. Here age is age (years), w is body weight (kg), scr is serum creatinine (mg/dL), sex is sex.
What inputs do I need for the creatinine clearance (cockcroft-gault) calculator?
You need age in years, body weight in kg, serum creatinine in mg/dL, sex. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the creatinine clearance calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the creatinine clearance result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.