Mortality Rate Calculator
Enter deaths, population, and case data to instantly calculate crude mortality rate, CFR, IFR, and years of potential life lost (YPLL).
Input Data
Include undetected cases (e.g. from seroprevalence studies)
Enter values on the left and click Calculate to see results.
Crude Mortality Rate
per 100,000 population
CMR = (Deaths / Population) × 100,000
Case Fatality Rate (CFR)
% of confirmed cases that died
CFR = (Deaths / Confirmed Cases) × 100
Infection Fatality Rate (IFR)
% of all infections (incl. undetected) that died
IFR = (Deaths / Total Infections) × 100
Years of Potential Life Lost (YPLL)
total years lost to premature death
YPLL = Deaths × max(Life Expectancy − Mean Age at Death, 0)
Summary
| Metric | Value | Inputs Used |
|---|
Summary
Enter deaths, population, and case data to instantly calculate crude mortality rate, CFR, IFR, and years of potential life lost (YPLL).
How it works
- Enter the total number of deaths in the observation period.
- Enter the total population size for crude mortality rate.
- Enter confirmed cases to compute the case fatality rate (CFR).
- Enter estimated total infections (including undetected) for the infection fatality rate (IFR).
- Enter average life expectancy and mean age at death to compute years of potential life lost (YPLL).
- Results update instantly as you type.
Use cases
- Compare crude mortality rates across different countries or time periods.
- Estimate case fatality rate during an outbreak using confirmed case data.
- Compute infection fatality rate when seroprevalence surveys provide total infection estimates.
- Calculate years of potential life lost to quantify premature mortality burden.
- Use in epidemiology coursework and public health research assignments.
- Cross-check published CFR and IFR figures for a disease outbreak.
- Evaluate the impact of an intervention by comparing pre- and post-period death rates.
- Prepare data summaries for health policy reports.