QALY Calculator
Enter life years and a health utility score to compute QALYs and ICER for cost-effectiveness analysis.
Intervention
Comparator (optional)
Enter values and click Calculate QALYs
QALYs Gained (Intervention)
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= — years × — utility
QALYs (Comparator)
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Incremental QALYs
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ICER (Cost per QALY Gained)
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Utility Score Reference
1.00Perfect health
0.80–0.99Mild impairment
0.50–0.79Moderate impairment
0.20–0.49Severe impairment
0.00Death
< 0Worse than death
Summary
Enter life years and a health utility score to compute QALYs and ICER for cost-effectiveness analysis.
How it works
- Enter the life years gained from the intervention in the "Life Years" field.
- Enter the health utility score (0 = death, 1 = perfect health) for the health state during those years.
- QALYs = Life Years × Utility Score — the result appears instantly.
- To compare two options, fill in the "Comparator" section with that option's life years and utility.
- Enter the incremental cost difference to compute the ICER (cost per QALY gained).
- Compare the ICER against common willingness-to-pay thresholds (e.g. $50,000 or $100,000 per QALY).
Use cases
- Evaluate a new drug's cost-effectiveness versus standard of care.
- Compare two surgical procedures on a quality-of-life-adjusted basis.
- Estimate health gain from a public health intervention.
- Prepare a health technology assessment (HTA) submission.
- Teach health economics concepts to students and clinicians.
- Quickly benchmark an ICER against NICE or WHO thresholds.
Frequently Asked Questions
Last updated: 2026-07-23 ·
Reviewed by Nham Vu