CountryDuel

Land

Size, shape and altitude

How big is it, really?

Iran is 89% bigger than Nigeria.

Iran: 1,745,150 km² (2023) · Nigeria: 923,770 km² (2023)

Drag it across the map

How much coast is there?

Iran’s coastline is 2.9 times as long as Nigeria’s.

Iran: 2,440 km (2026 edition) · Nigeria: 853 km (2026 edition)

How high can you climb?

Iran’s highest peak towers 3,206 m above Nigeria’s.

Iran: 5,625 m (2026 edition) · Nigeria: 2,419 m (2026 edition)

How far apart are they?

People

Who lives there, and how closely

How many people live there?

Nigeria has 2.6 times as many people as Iran.

Iran: 92.4 million (2025) · Nigeria: 238 million (2025)

How crowded is it?

Nigeria is 4.6 times as densely populated as Iran.

Iran: 57 per km² (2025) · Nigeria: 261 per km² (2025)

How tall are the men?

Men in Iran are 4.1 cm taller than in Nigeria.

Iran: 175.6 cm (2019) · Nigeria: 171.6 cm (2019)

How tall are the women?

Women in Iran are 3.0 cm taller than in Nigeria.

Iran: 161.2 cm (2019) · Nigeria: 158.1 cm (2019)

How old is the typical person?

The typical person in Iran is 15 years older than in Nigeria.

Iran: 32.9 years (2023) · Nigeria: 17.8 years (2023)

How many children per woman?

Women in Nigeria have 2.7 more children on average than in Iran.

Iran: 1.68 children per woman (2024) · Nigeria: 4.38 children per woman (2024)

How many people are 65 or older?

8.6% of people in Iran are 65 or older, versus 3.1% in Nigeria.

Iran: 8.6% (2025) · Nigeria: 3.1% (2025)

How many Nobel laureates were born there?

Iran has produced 0.3 Nobel laureates per 10 million people, Nigeria 0.0.

Iran: 0.3 (2025) · Nigeria: 0 (2025)

How many official languages?

Iran and Nigeria are practically level.

Iran: 1 (2026) · Nigeria: 1 (2026)

What shape is the population?

Money

What an economy looks like per person

How big is the economy?

Iran’s economy is 25% larger than Nigeria’s.

Iran: $363 billion (2025) · Nigeria: $291 billion (2025)

How much is produced per person?

Iran produces 2.1 times as much per person as Nigeria.

Iran: Int$19,699 (2025) · Nigeria: Int$9,532 (2025)

How evenly is income shared?

Income is more unequally shared in Iran than in Nigeria (Gini 2 points higher).

Iran: 35.9 (2023) · Nigeria: 33.9 (2022)

How many people are looking for work?

Unemployment is 8.3% in Iran, versus 3.1% in Nigeria.

Iran: 8.3% (2025) · Nigeria: 3.1% (2025)

How much goes to the military?

Iran spends 2.0% of its GDP on the military, Nigeria 0.6%.

Iran: 2% (2024) · Nigeria: 0.6% (2024)

How expensive is it?

Iran’s price level (US = 100) is 1.6× Nigeria’s.

Iran: 20% (2025) · Nigeria: 13% (2025)

Health

Long lives, small beginnings

How much is spent on health?

Iran spends 4 times as much on health per person as Nigeria.

Iran: $267 (2023) · Nigeria: $67 (2023)

How long do people live?

People in Iran live 23 years longer than in Nigeria.

Iran: 77.9 years (2024) · Nigeria: 54.6 years (2024)

How many babies don’t reach their first birthday?

A baby in Nigeria is 6.8 times as likely to die before turning one as in Iran.

Iran: 10.3 per 1,000 (2024) · Nigeria: 69.8 per 1,000 (2024)

How many doctors are there?

Iran has 4.8 times as many doctors per person as Nigeria.

Iran: 1.8 per 1,000 (2023) · Nigeria: 0.4 per 1,000 (2023)

How common is obesity?

26% of adults in Iran are obese, versus 12% in Nigeria.

Iran: 25.7% (2024) · Nigeria: 12.1% (2024)

How many adults smoke?

12% of adults in Iran smoke, versus 3.1% in Nigeria.

Iran: 11.9% (2024) · Nigeria: 3.1% (2024)

Everyday life

Plates, glasses and happiness

How do people rate their lives?

People in Iran rate their lives 0.36 points higher than in Nigeria.

Iran: 5.15 (2025) · Nigeria: 4.79 (2025)

How much do people drink?

Adults in Nigeria drink 98 times as much alcohol as in Iran.

Iran: 0.021 litres (2023) · Nigeria: 2 litres (2023)

How much meat is on the menu?

Iran has 4.2 times as much meat per person as Nigeria.

Iran: 29.9 kg (2023) · Nigeria: 7.1 kg (2023)

How much food is there per day?

Iran has 405 kcal more food per person per day than Nigeria.

Iran: 2,875 kcal (2023) · Nigeria: 2,470 kcal (2023)

How long do people work?

Workers in Iran put in 184 more hours a year than in Nigeria.

Iran: 2,246 hours (2023) · Nigeria: 2,062 hours (2023)

How long do people go to school?

Adults in Iran went to school 3.3 years longer than in Nigeria.

Iran: 10.8 years (2023) · Nigeria: 7.6 years (2023)

How many tourists visit?

Iran: no data · Nigeria: 0 (2024)

Connected

Online, electrified, urban

How many people are online?

85% of people in Iran are online, versus 41% in Nigeria.

Iran: 85% (2024) · Nigeria: 41% (2024)

Who has electricity at home?

100% of people in Iran have electricity, versus 63% in Nigeria.

Iran: 100% (2024) · Nigeria: 62.5% (2024)

How many live in cities?

77% of people in Iran live in cities, versus 64% in Nigeria.

Iran: 77% (2025) · Nigeria: 64% (2025)

How many phones per person?

Iran has 174 mobile subscriptions per 100 people, Nigeria 71.

Iran: 174 (2024) · Nigeria: 71 (2024)

How much railway is there?

Iran’s railway network is 2.7 times as long as Nigeria’s.

Iran: 9,455 km (2021) · Nigeria: 3,528 km (2015)

How much do they fly?

Airlines from Iran fly 8.8 times as many passengers per resident as those from Nigeria.

Iran: 0.2 (2023) · Nigeria: 0.02 (2023)

Planet

Air, forests and energy

How much of the land is forest?

Forest covers 23% of Nigeria, but only 6.6% of Iran.

Iran: 6.6% (2023) · Nigeria: 23.2% (2023)

How much CO₂ does each person emit?

The average person in Iran emits 15 times as much CO₂ as someone in Nigeria.

Iran: 8.7 t (2024) · Nigeria: 0.6 t (2024)

How green is the power grid?

31% of Nigeria’s electricity is renewable, versus 3.8% in Iran.

Iran: 3.8% (2025) · Nigeria: 31.3% (2025)

How clean is the air?

The air in Nigeria carries 33% more fine dust than in Iran.

Iran: 37.7 µg/m³ (2024) · Nigeria: 50 µg/m³ (2024)

Where does the power come from?

Safety

Measured risk, not vibes

How common is murder?

You are 6.6 times as likely to be murdered in Nigeria as in Iran.

Iran: 2.4 per 100k (2014) · Nigeria: 15.7 per 100k (2023)

How dangerous are the roads?

Roads in Iran are 20% deadlier than in Nigeria.

Iran: 20.6 per 100k (2021) · Nigeria: 17.2 per 100k (2021)

Climate

What the year feels like

How warm is it?

Nigeria is on average 8.1 °C warmer than Iran.

Iran: 19.3°C (2016–2025 avg) · Nigeria: 27.4°C (2016–2025 avg)

How much rain falls?

Nigeria gets 3.8 times as much rain as Iran.

Iran: 272 mm (2016–2025 avg) · Nigeria: 1,044 mm (2016–2025 avg)

What does the year feel like?
Time machine

Quick answers

Is Iran bigger than Nigeria?

Iran is larger. Iran is 89% bigger than Nigeria.

Which has more people, Iran or Nigeria?

Nigeria has 2.6 times as many people as Iran (2025 estimates).

Where do people live longer, Iran or Nigeria?

People in Iran live 23 years longer than in Nigeria. Life expectancy at birth is 77.9 years in Iran and 54.6 in Nigeria.

Are people taller in Iran or Nigeria?

Men in Iran are 4.1 cm taller than in Nigeria (NCD-RisC, cohort born 2019).

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