Mortality Calculator

Calculate mortality percentage from deaths and total population for the same observation period.

914.8K uses Updated · 2026-05-25 Runs locally · zero upload
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How to Use the Mortality Calculator

Enter deaths during the observation period and the total population for the same group and period. Deaths must not exceed the population.

The calculator reports mortality percentage, estimated survivors, and deaths per 1,000 people. For reporting, label the period clearly, such as monthly or annual.

Formula and Method - Mortality Calculator

Mortality rate = (deaths ÷ total population) × 100%

Mortality divides death events by the observed population. Percent format is intuitive, while deaths per 1,000 helps with public health and operational comparisons.

Use Cases for the Mortality Calculator

  • Calculating crude mortality for a community, facility, or cohort.
  • Comparing mortality across periods or sites.
  • Converting a death count into a percentage for a report.

Frequently asked questions about Mortality Calculator

Is this crude or standardized mortality?

It is crude mortality; no age or case-mix standardization is applied.

Why cannot deaths exceed population?

For a single population period, deaths should not exceed the population denominator.

Can this calculate case fatality?

The same structure can be used, but the denominator should be confirmed cases rather than total population.