How much coast is there?

Iran’s coastline is 71% longer than Tanzania’s.

Iran: 2,440 km (2026 edition) · Tanzania: 1,424 km (2026 edition)

How high can you climb?

Tanzania’s highest peak towers 270 m above Iran’s.

Iran: 5,625 m (2026 edition) · Tanzania: 5,895 m (2026 edition)

How many people live there?

Iran has 31% more people than Tanzania.

Iran: 92.4 million (2025) · Tanzania: 70.5 million (2025)

How crowded is it?

Tanzania is 40% more densely populated than Iran.

Iran: 57 per km² (2025) · Tanzania: 80 per km² (2025)

How old is the typical person?

The typical person in Iran is 16 years older than in Tanzania.

Iran: 32.9 years (2023) · Tanzania: 17.2 years (2023)

How many children per woman?

Women in Tanzania have 2.9 more children on average than in Iran.

Iran: 1.68 children per woman (2024) · Tanzania: 4.54 children per woman (2024)

How many people are 65 or older?

8.6% of people in Iran are 65 or older, versus 3.0% in Tanzania.

Iran: 8.6% (2025) · Tanzania: 3% (2025)

How many Nobel laureates were born there?

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

Iran: 0.3 (2025) · Tanzania: 0 (2025)

How many official languages?

Tanzania has 2 official languages, Iran 1.

Iran: 1 (2026) · Tanzania: 2 (2026)

How big is the economy?

Iran’s economy is 4 times the size of Tanzania’s.

Iran: $363 billion (2025) · Tanzania: $90.1 billion (2025)

How much is produced per person?

Iran produces 4.4 times as much per person as Tanzania.

Iran: Int$19,699 (2025) · Tanzania: Int$4,471 (2025)

How evenly is income shared?

Income is more unequally shared in Tanzania than in Iran (Gini 4.6 points higher).

Iran: 35.9 (2023) · Tanzania: 40.5 (2018)

How many people are looking for work?

Unemployment is 8.3% in Iran, versus 1.6% in Tanzania.

Iran: 8.3% (2025) · Tanzania: 1.6% (2025)

How much goes to the military?

Iran spends 2.0% of its GDP on the military, Tanzania 1.2%.

Iran: 2% (2024) · Tanzania: 1.2% (2024)

How expensive is it?

Tanzania’s price level (US = 100) is 1.5× Iran’s.

Iran: 20% (2025) · Tanzania: 29% (2025)

How much is spent on health?

Iran spends 7.4 times as much on health per person as Tanzania.

Iran: $267 (2023) · Tanzania: $36 (2023)

How many babies don’t reach their first birthday?

A baby in Tanzania is 2.8 times as likely to die before turning one as in Iran.

Iran: 10.3 per 1,000 (2024) · Tanzania: 28.7 per 1,000 (2024)

How many doctors are there?

Iran has 14 times as many doctors per person as Tanzania.

Iran: 1.8 per 1,000 (2023) · Tanzania: 0.1 per 1,000 (2022)

How common is obesity?

26% of adults in Iran are obese, versus 10% in Tanzania.

Iran: 25.7% (2024) · Tanzania: 10.5% (2024)

How many adults smoke?

12% of adults in Iran smoke, versus 7.7% in Tanzania.

Iran: 11.9% (2024) · Tanzania: 7.7% (2024)

How do people rate their lives?

People in Iran rate their lives 1.25 points higher than in Tanzania.

Iran: 5.15 (2025) · Tanzania: 3.90 (2025)

How much do people drink?

Adults in Tanzania drink 72 times as much alcohol as in Iran.

Iran: 0.021 litres (2023) · Tanzania: 1.5 litres (2023)

How much meat is on the menu?

Iran has 2.5 times as much meat per person as Tanzania.

Iran: 29.9 kg (2023) · Tanzania: 12.2 kg (2023)

How much food is there per day?

Iran has 357 kcal more food per person per day than Tanzania.

Iran: 2,875 kcal (2023) · Tanzania: 2,518 kcal (2023)

How long do people work?

Workers in Iran put in 117 more hours a year than in Tanzania.

Iran: 2,246 hours (2023) · Tanzania: 2,129 hours (2023)

How long do people go to school?

Adults in Iran went to school 4.8 years longer than in Tanzania.

Iran: 10.8 years (2023) · Tanzania: 6.1 years (2023)

How many tourists visit?

Iran: no data · Tanzania: 0.02 (2022)

How many people are online?

85% of people in Iran are online, versus 31% in Tanzania.

Iran: 85% (2024) · Tanzania: 31% (2024)

Who has electricity at home?

100% of people in Iran have electricity, versus 52% in Tanzania.

Iran: 100% (2024) · Tanzania: 52.4% (2024)

How many live in cities?

77% of people in Iran live in cities, versus 37% in Tanzania.

Iran: 77% (2025) · Tanzania: 37% (2025)

How many phones per person?

Iran has 174 mobile subscriptions per 100 people, Tanzania 127.

Iran: 174 (2024) · Tanzania: 127 (2024)

How much railway is there?

Iran’s railway network is 3.5 times as long as Tanzania’s.

Iran: 9,455 km (2021) · Tanzania: 2,701 km (2017)

How much do they fly?

Airlines from Iran fly 7.2 times as many passengers per resident as those from Tanzania.

Iran: 0.2 (2023) · Tanzania: 0.03 (2023)

How much of the land is forest?

Forest covers 50% of Tanzania, but only 6.6% of Iran.

Iran: 6.6% (2023) · Tanzania: 50.1% (2023)

How much CO₂ does each person emit?

The average person in Iran emits 30 times as much CO₂ as someone in Tanzania.

Iran: 8.7 t (2024) · Tanzania: 0.3 t (2024)

How green is the power grid?

33% of Tanzania’s electricity is renewable, versus 3.8% in Iran.

Iran: 3.8% (2025) · Tanzania: 32.9% (2024)

How clean is the air?

The air in Iran carries 53% more fine dust than in Tanzania.

Iran: 37.7 µg/m³ (2024) · Tanzania: 24.6 µg/m³ (2024)

How common is murder?

You are 58% more likely to be murdered in Tanzania than in Iran.

Iran: 2.4 per 100k (2014) · Tanzania: 3.7 per 100k (2020)

How dangerous are the roads?

Roads in Iran are 30% deadlier than in Tanzania.

Iran: 20.6 per 100k (2021) · Tanzania: 15.8 per 100k (2021)

How warm is it?

Tanzania is on average 3.9 °C warmer than Iran.

Iran: 19.3°C (2016–2025 avg) · Tanzania: 23.1°C (2016–2025 avg)

How much rain falls?

Tanzania gets 4.1 times as much rain as Iran.

Iran: 272 mm (2016–2025 avg) · Tanzania: 1,102 mm (2016–2025 avg)