Kidney Function Calculator
eGFR from your creatinine result using the race-free CKD-EPI 2021 equation.
Tool 23 · 30 sec · Awaiting clinical review
Preview — awaiting clinical review
This calculator uses a published method but hasn't yet been signed off by our clinical team. It isn't listed publicly until it has been.
Your result will appear here.
How this works
- Model
- CKD-EPI 2021 creatinine equation (v2021)
- Source
- Inker LA et al. New creatinine- and cystatin C–based equations to estimate GFR without race. N Engl J Med 2021;385:1737–1749. — reference
- Intended use
- Explain an eGFR value.
- Population
- Adults 18+
- Limitations
- UK labs may still report CKD-EPI 2009.
- Not valid in pregnancy or acute kidney injury.
- Status
- Awaiting clinical review · methodology checked 3 November 2026
Educational self-assessment — not a diagnostic test. Results are based on published research and population data and can't account for everything about you. They are not a diagnosis and don't replace advice from a healthcare professional. If you're worried about your health, speak to your GP or call NHS 111.