GFR Calculator

Estimate GFR with transparent assumptions.

Choose an age groupUse CKD-EPI for adults or bedside Schwartz for children.

2 options

Creatinine unitAdult equationGender

Serum creatinine

Age

years

ESTIMATED GFR91.7 mL/min/1.73m²

2021 CKD-EPI adult equation; category G1. Race is not used in the current 2021 equation. Clinical interpretation requires history and urine testing. Educational estimate only; not medical advice.

Normalized creatinine: 1.000 mg/dL
Equation: 2021 CKD-EPI adult
Filtration category: G1

Estimate based on the values shown

Formula checked2021 race-free or legacy 2009 CKD-EPI adult equations and bedside Schwartz pediatric equation; creatinine accepts mg/dL or µmol/L.

KEEP GOING

Useful next steps

BMIBMIEstimate BMI with transparent assumptions→kcalCaloriesEstimate Calories with transparent assumptions→TDEETDEEEstimate TDEE with transparent assumptions→