eGFR vs Cockcroft–Gault CrCL • PharKeep

Patient Inputs

Age (years)

Sex at birth

Serum creatinine (mg/dL)

Height

Weight

CG Weight Used

Rounding

CKD-EPI 2021 (race-free) Auto-recalculates eGFR mL/min/1.73 m² • CrCL mL/min

Results

eGFR (CKD-EPI 2021, indexed)

—

mL/min/1.73 m²

Body Surface Area (Mosteller)

—

m²

eGFR (un-indexed to patient BSA)

—

mL/min (≈ for drug-dosing comparisons)

Cockcroft–Gault CrCL

—

mL/min (weight: —)

IBW (Devine)

—

Adjusted BW

—

kg (IBW + 0.4×(Actual−IBW))

BMI

—

kg/m²

Equations & Notes

CKD-EPI 2021 (creatinine-only, race-free) formula

                eGFR = 142 × min(Scr/κ, 1)α × max(Scr/κ, 1)−1.200 × 0.9938Age × (1.012 if female)
              

κ = 0.7 (female) or 0.9 (male); α = −0.241 (female) or −0.302 (male). Units: mL/min/1.73 m².

Cockcroft–Gault (CrCL)

                CrCL = ((140 − Age) × Weightkg × (0.85 if female)) / (72 × Scr)
              

Weight may be Actual, IBW (Devine), or Adjusted (AdjBW = IBW + 0.4×(Actual−IBW)).

Tip: When labels specify CrCL, use Cockcroft–Gault. The “un-indexed eGFR” multiplies eGFR by (BSA/1.73) to give an approximate mL/min value for comparison.

For clinical use; confirm with drug labels and institutional policy.