Work out maternal mortality ratio instantly with clear inputs, formula shown and shareable results.
Divides maternal deaths by live births and expresses the result per 100,000, the standard maternal mortality ratio.
Maternal mortality ratio
MMR = maternal deaths / live births x 100,000; the SDG 3.1 global target is below 70
The ratio uses live births as the denominator; the maternal mortality rate uses women of reproductive age.
Deaths during pregnancy or within 42 days of its end from causes related to or aggravated by the pregnancy.