Compare
Guinea vs Nigeria
How Guinea and Nigeria compare on 37 measures, from 1900 to 2025. The main differences:
- Life expectancy · In 2023, Guinea was higher: 60.7 years against 54.5 years
- GDP per person · In 2025, Nigeria was higher: $2,369 against $1,098
- Population · In 2023, Nigeria was higher: 228 million people against 14.4 million people
- Military spending · In 2025, Guinea was higher: 2.03% of GDP against 0.91% of GDP
- CO₂ per person · In 2024, Nigeria was higher: 0.57 tonnes against 0.35 tonnes
Every measure
Health
- Life expectancyGuinea: 60.7 years in 2023Nigeria: 54.5 years in 2023
- Child mortalityGuinea: 9.2 per 100 live births in 2024Nigeria: 11.6 per 100 live births in 2024
- Infant mortalityGuinea: 65.4 per 1,000 live births in 2023Nigeria: 69.5 per 1,000 live births in 2023
- DepressionGuinea: 3.56% in 2017Nigeria: 3.92% in 2017
- Suicide rateGuinea: 11.1 per 100,000 people in 2017Nigeria: 7.5 per 100,000 people in 2017
People
- PopulationGuinea: 14.4 million people in 2023Nigeria: 228 million people in 2023
- Population growthGuinea: 2.45% a year in 2023Nigeria: 2.1% a year in 2023
- Fertility rateGuinea: 4.22 births per woman in 2023Nigeria: 4.48 births per woman in 2023
- Urban populationGuinea: 38.5% in 2025Nigeria: 63.8% in 2025
- Median ageGuinea: 18 years in 2023Nigeria: 17.8 years in 2023
- People aged 65 and overGuinea: 3.4% in 2023Nigeria: 3% in 2023
- Net migration rateGuinea: -0.3 per 1,000 people in 2023Nigeria: -0.3 per 1,000 people in 2023
Economy
Education
Politics
Conflict
Military
- Military spendingGuinea: 2.03% of GDP in 2025Nigeria: 0.91% of GDP in 2025
- Military spending in US dollarsGuinea: $586M in 2025Nigeria: $1.76B in 2025
- Military spending per personGuinea: $40 in 2025Nigeria: $9 in 2025
- Military share of state spendingGuinea: 10.6% of government spending in 2025Nigeria: 5.9% of government spending in 2025
- Armed forces personnelGuinea: 13,000 people in 2020Nigeria: 223,000 people in 2020
- National powerGuinea: 0.07% of world capability in 2022Nigeria: 1.16% of world capability in 2022
- Armed forces, share of workersGuinea: 0.32% of the labour force in 2020Nigeria: 0.23% of the labour force in 2020
- Arms importsGuinea: 6 million TIV in 2025Nigeria: 21 million TIV in 2025
Climate
Technology and environment
Each country on its own
Good to know
- Sources: UN, Gapminder and UN IGME, 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