Compare
Iran vs Tanzania
How Iran and Tanzania compare on 38 measures, from 1820 to 2025. The main differences:
- Life expectancy · In 2023, Iran was higher: 77.7 years against 67 years
- GDP per person · In 2025, Iran was higher: $5,617 against $1,153
- Population · In 2023, Iran was higher: 90.6 million people against 66.6 million people
- Military spending · In 2025, Iran was higher: 2.09% of GDP against 1.16% of GDP
- CO₂ per person · In 2024, Iran was higher: 9.05 tonnes against 0.31 tonnes
Every measure
Health
- Life expectancyIran: 77.7 years in 2023Tanzania: 67 years in 2023
- Child mortalityIran: 1.1 per 100 live births in 2024Tanzania: 3.7 per 100 live births in 2024
- Infant mortalityIran: 9.9 per 1,000 live births in 2023Tanzania: 28.9 per 1,000 live births in 2023
- Safe drinking waterIran: 94.2% in 2022Tanzania: 11.3% in 2022
- DepressionIran: 5.12% in 2017Tanzania: 3.69% in 2017
- Suicide rateIran: 5.4 per 100,000 people in 2017Tanzania: 8.8 per 100,000 people in 2017
People
- PopulationIran: 90.6 million people in 2023Tanzania: 66.6 million people in 2023
- Population growthIran: 1.12% a year in 2023Tanzania: 2.88% a year in 2023
- Fertility rateIran: 1.7 births per woman in 2023Tanzania: 4.61 births per woman in 2023
- Urban populationIran: 77.4% in 2025Tanzania: 36.9% in 2025
- Median ageIran: 32.9 years in 2023Tanzania: 17.2 years in 2023
- People aged 65 and overIran: 7.9% in 2023Tanzania: 3% in 2023
- Net migration rateIran: 2.9 per 1,000 people in 2023Tanzania: -0.6 per 1,000 people in 2023
Economy
Education
Politics
Conflict
Military
- Military spendingIran: 2.09% of GDP in 2025Tanzania: 1.16% of GDP in 2025
- Military spending in US dollarsIran: $7.45B in 2025Tanzania: $983M in 2025
- Military spending per personIran: $80 in 2025Tanzania: $15 in 2025
- Military share of state spendingIran: 11.2% of government spending in 2025Tanzania: 5.8% of government spending in 2025
- Armed forces personnelIran: 650,000 people in 2020Tanzania: 28,000 people in 2020
- National powerIran: 1.64% of world capability in 2022Tanzania: 0.25% of world capability in 2022
- Armed forces, share of workersIran: 2.35% of the labour force in 2020Tanzania: 0.1% of the labour force in 2020
- Arms importsIran: 42 million TIV in 2024Tanzania: 4 million TIV in 2025
Climate
Technology and environment
Each country on its own
Good to know
- Sources: UN, Gapminder and UN IGME, WHO/UNICEF, IHME, World Bank, IMF, UNESCO, Our World in Data, V-Dem, UCDP, SIPRI, IISS, Correlates of War, ERA5, CMIP6, EDGAR, ITU and FAO. Each measure’s page names its own and what it counts.
- Values are drawn on today’s borders. Years without a published value are left empty, never filled in.
How the layers work, where their data comes from and what they can’t tell you: Countries through time