Skip to content
ENExplore Calculators

Disability Adjusted Life Years Calculator

Work out disability adjusted life years instantly with clear inputs, formula shown and shareable results.

About Disability Adjusted Life Years Calculator

Adds years of life lost to years lived with disability, where the latter is prevalent cases multiplied by the disability weight and duration.

Formula

DALY

DALY = YLL + YLD, where YLD = prevalent cases x disability weight x duration

Worked example

With the default values below, Disability Adjusted Life Years Calculator returns Disability-adjusted life years of 2,200.0. Change any input above and every figure here is recalculated in your browser.

Inputs used

Years of life lostaccepts 0–10,000,000
1,200
Prevalent casesaccepts 0–100,000,000
5,000
Disability weightaccepts 0.001–1
0.2
Average durationaccepts 0.01–80 years
1 years

Results

Disability-adjusted life years
2,200.0 DALYs
Years lived with disability
1,000.0 years
Share of DALYs from premature death
54.55%
DALYs per case
0.4400

Step by step

  1. 1Values used
  2. 2DALY
  3. 3Disability-adjusted life years= 2,200.0 DALYs
  4. 4Years lived with disability= 1,000.0 years
  5. 5Share of DALYs from premature death= 54.55
  6. 6DALYs per case= 0.4400

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Where do disability weights come from?

Global Burden of Disease surveys elicit them from population comparisons; they run from 0 (full health) to 1 (equivalent to death).

Are DALYs and QALYs interchangeable?

No. DALYs count health loss and are minimised; QALYs count health gained and are maximised.

Related Calculators

Disability Adjusted Life Years Calculator | Calcrivo