Demography Formula Sheet Birth Rate: Number of Births x 1000 = BR/1000 Total population Death Rate: Number of Deaths x 1000 = DR/1000 Total population Natural Increase Rate: Birth Rate – Death Rate = MIR/1000
Immigration Rate: Number of Immigrants x 1000 = IR/1000 Total Population Emigration Rate: Number Of Emigrants x 1000 = ER/1000 Total Population Net (Total) Migration Rate: Immigration Rate – Emigration Rate = NMR/1000
Population Growth Rate (Per 1000):
Natural Increase Rate + Net (Total) Migration Rate = PGR/1000
Population Growth Rate (%): Birth Rate – Death Rate (PGR) = PGR % 1000 Doubling Time:
70 I = DT Years Population Growth Rate (%)
Population Density: Total Population (# of People) = ppl/km2 Total Land Area Notes: