eGFR Calculator (CKD-EPI 2021) + Renal Dosing by Dr Lakdhesz

eGFR Calculator (CKD-EPI 2021) + Renal Dosing

Adults only (18 years and above). Race-free CKD-EPI 2021. Verify doses with your local guideline.CLICK TITLE ABOVE FOR PROPER VIEW

Patient inputs

Age (years)

Sex MaleFemale

Serum creatinine

Units umol/Lmg/dL

eGFR: -- mL/min/1.73m2 CKD: --

Equation: 142 x min(Scr/k,1)^a x max(Scr/k,1)^-1.200 x 0.9938^age x [1.012 if female]. k = 0.7 (female) or 0.9 (male). a = -0.241 (female) or -0.302 (male).

CKD staging (quick guide)

Stage	eGFR (mL/min/1.73m2)
G1	90 or more
G2	60 to 89
G3a	45 to 59
G3b	30 to 44
G4	15 to 29
G5	Less than 15

Show only the recommended column or field for this eGFR

Renal dosing viewer (examples)

All classes Antibiotic Analgesic Other

CKD: -- Recommended column or field is highlighted below.

Drug	Usual dose	G3a 45 to 59	G3b 30 to 44	G4 to G5 below 30	Notes	Class

Reference style: banded by eGFR. Always confirm with brand label and local formulary. Examples below are for teaching only.

Disclaimer: Educational reference only. Not a medical device. Use with clinical judgment. For patient specific decisions, consult your senior or specialist and follow hospital policy.

References: CKD-EPI 2021 race-free equation; KDIGO CKD staging bands; local formulary banding for drug dose adjustment.