Sierra Leone vs Japan
Sierra Leone has a population of 9.1M, compared to Japan's 123.2M. Japan is 13.6 times more populous than Sierra Leone. Economically, Japan ($4.03T) has a GDP 577.8 times larger than Sierra Leone's ($7.0B). Japan covers 377,930 km², 5.3 times larger than Sierra Leone's 71,740 km². Life expectancy in Japan stands at 84.0 years, 22.3 years higher than Sierra Leone's 61.8 years.
Sierra LeoneJapan| Population | -92.6%9.1M | +1257.3%123.2M |
| Area | -81.0%71,740 km² | +426.8%377,930 km² |
| GDP | -99.8%$7.0B | +57675.4%$4.03T |
| GDP Per Capita | -97.5%$806.655 | +3927.4%$32,487.078 |
| Life Expectancy | -26.5%61.8 yrs | +36.0%84.0 yrs |
| Infant Mortality | +3022.2%56.2 | -96.8%1.8 |
| Literacy Rate | — | — |
| Unemployment | +28.5%3.1% | -22.2%2.5% |
| Capital | Freetown | Tokyo |
| Region | Africa | Asia |
| Languages | English | Japanese |
| Currencies | SLE (Le) | JPY (¥) |
Last updated: March 2026
All data sourced from World Bank Open Data (2025) and REST Countries API. Economic data may reflect most recent available year.
Population Comparison
Japan is 13.6 times more populous than Sierra Leone, with 123.2M residents compared to 9.1M. Sierra Leone is a nation of 9.1M people, while Japan is among the world's 15 most populous countries. In terms of population density, Sierra Leone averages 127 people per km² (moderate), while Japan averages 326 people per km² (dense). Population growth rate data is not available for either country over the past decade.
Economy Comparison
Sierra Leone is classified as a low-income economy, while Japan is classified as a high-income economy. The Japan economy ($4.03T) is 577.8 times larger than Sierra Leone's ($7.0B). Sierra Leone's GDP per capita of $806.655 is 63% below the regional average of 2,200 for Africa. Japan's GDP per capita of $32,487.078 is 190% above the regional average of 11,200 for Asia. On a per-capita basis, residents of Japan are on average 40.3 times wealthier than those in Sierra Leone.
Health & Quality of Life
Life expectancy in Sierra Leone is 61.8 years, compared to 84.0 years in Japan, a gap of 22.3 years. Japan (84.0 years) is 12.0 years above the global average of 72 years, while Sierra Leone (61.8 years) is 10.2 years below the global average of 72 years. At 56.2 deaths per 1,000 live births, Sierra Leone's infant mortality is 3022% higher than Japan's 1.8.
Geographic Comparison
Japan (377,930 km²) is 5.3 times larger by land area than Sierra Leone (71,740 km²). Sierra Leone shares borders with 2 countries, while Japan borders 0 countries. Sierra Leone spans 1 timezone, compared to Japan's 1 timezone. Sierra Leone lies in Africa, while Japan is located in Asia. Sierra Leone is categorized within the Africa region (Western Africa), whereas Japan belongs to Asia (Eastern Asia).
Key Differences
The most significant difference between Sierra Leone and Japan is in GDP: Sierra Leone's $7.0B compared to Japan's $4.03T represents a 100% gap. The most significant difference between Sierra Leone and Japan is in GDP per capita: Sierra Leone's $806.655 compared to Japan's $32,487.078 represents a 98% gap. The most significant difference between Sierra Leone and Japan is in infant mortality: Sierra Leone's 56.2 per 1,000 compared to Japan's 1.8 per 1,000 represents a 97% gap. These disparities reflect the broader structural differences between Sierra Leone's low-income economy and Japan's high-income economy.
At a Glance: What the Numbers Mean
Living Standards
Japan has a GDP per capita of $32,487.078, which is 40.3x that of Sierra Leone ($806.655). This gap reflects differences in economic development, industrial structure, and workforce productivity. In practical terms, average purchasing power in Japan is significantly higher, though cost of living differences partially offset the raw income gap.
Population Density
Japan is 2.6x more densely populated than Sierra Leone (326 vs 127 people per km²). Higher density typically correlates with more urbanization, greater demand for public transit, and higher housing costs. Sierra Leone's lower density suggests more rural land use and potentially lower urban congestion.
Healthcare and Longevity
Citizens of Japan live an average of 22.3 years longer than those of Sierra Leone (84.0 vs 61.8 years). This gap reflects differences in healthcare access, nutrition, public health infrastructure, and environmental factors. This is a substantial gap that suggests significant differences in healthcare systems and overall living conditions.
Economic Momentum
Sierra Leone's economy grew at 4.3% compared to Japan's 0.1%. Both countries show healthy growth, though Sierra Leone has a modest edge in economic dynamism.
Travel Comparison
Sierra Leone vs Japan for Families
For family travel, Japan generally edges ahead due to lower infant mortality (1.8 vs 56.2 per 1,000), which is a useful proxy for healthcare infrastructure and child safety. Sierra Leone offers its own advantages, including a more compact geography that is easier to navigate with children. Both countries have family-friendly attractions, though Japan's higher GDP per capita typically correlates with better tourist infrastructure, public transport, and English-language availability.
Sierra Leone vs Japan for Budget Travelers
Sierra Leone is typically the more budget-friendly destination, with a GDP per capita of $806.655 translating to lower prices for accommodation, food, and local transport. Budget travelers in Sierra Leone can expect to spend significantly less per day than in Japan. However, Japan may offer better value in specific categories such as intercity transport or package deals. Shoulder season travel in either country helps reduce costs further.
Sierra Leone vs Japan for Retirees
Japan's life expectancy of 84.0 years suggests stronger healthcare infrastructure, which is a key factor for retirees. Sierra Leone may offer a lower cost of living, which stretches pension income further. Key considerations for retirees include visa and residency requirements, healthcare access, climate preferences, and proximity to international airports. Both countries have established expat communities, though the specific visa options and healthcare quality vary by region within each country.
Sierra Leone vs Japan Cost of Living
Japan's GDP per capita is 40.3x that of Sierra Leone, which generally correlates with a higher cost of living. Housing, dining out, and services tend to be more expensive in Japan, while Sierra Leone offers more purchasing power per dollar for everyday expenses. However, cost of living varies significantly by city within each country. Major urban centers in Sierra Leone can approach or exceed average costs in Japan's smaller cities.
Sierra Leone vs Japan for Digital Nomads
For digital nomads choosing between Sierra Leone and Japan, key factors include internet infrastructure, visa policies, cost of living, and timezone compatibility with clients. Sierra Leone spans 1 timezone while Japan covers 1. Sierra Leone's lower cost of living makes it attractive for stretching remote income. Both countries have growing digital nomad communities, though specific visa requirements for remote workers differ and should be verified before committing to a longer stay.
Frequently Asked Questions
Which is bigger, Sierra Leone or Japan by population?
Japan is larger by population, with 123.2M residents compared to Sierra Leone's 9.1M. Japan is 13.6 times more populous than Sierra Leone.
Which country has a higher GDP, Sierra Leone or Japan?
Japan has the higher GDP at $4.03T, compared to Sierra Leone's $7.0B. Japan's economy is 577.8 times larger.
How does life expectancy compare between Sierra Leone and Japan?
Japan has a higher life expectancy at 84.0 years, compared to Sierra Leone's 61.8 years. The gap between the two countries is 22.3 years. Sierra Leone's life expectancy is 10.2 years below the global average of 72 years, while Japan's is 12.0 years above the global average of 72 years.
Which country is larger by area, Sierra Leone or Japan?
Japan is larger by land area, covering 377,930 km² compared to Sierra Leone's 71,740 km². Japan is 5.3 times larger than Sierra Leone.
What languages are spoken in Sierra Leone and Japan?
Sierra Leone recognizes the following official language: English. Japan recognizes: Japanese. The two countries do not share an official language.
Which country has lower inflation, Sierra Leone or Japan?
Japan has lower inflation at 2.7%, compared to Sierra Leone's 28.6%. Japan's inflation is within the 2-3% range considered stable by most central banks, while Sierra Leone's rate is severely elevated at 28.6%, a rate that erodes household purchasing power.
Is Sierra Leone or Japan better for a family holiday?
For family travel, Japan generally edges ahead due to lower infant mortality (1.8 vs 56.2 per 1,000), which is a useful proxy for healthcare infrastructure and child safety. Sierra Leone offers its own advantages, including a more compact geography that is easier to navigate with children. Both coun...
Is Sierra Leone or Japan cheaper to visit?
Sierra Leone is typically the more budget-friendly destination, with a GDP per capita of $806.655 translating to lower prices for accommodation, food, and local transport. Budget travelers in Sierra Leone can expect to spend significantly less per day than in Japan. However, Japan may offer better v...
Is Sierra Leone or Japan better for retirement?
Japan's life expectancy of 84.0 years suggests stronger healthcare infrastructure, which is a key factor for retirees. Sierra Leone may offer a lower cost of living, which stretches pension income further. Key considerations for retirees include visa and residency requirements, healthcare access, cl...
Is Sierra Leone or Japan more expensive to live in?
Japan's GDP per capita is 40.3x that of Sierra Leone, which generally correlates with a higher cost of living. Housing, dining out, and services tend to be more expensive in Japan, while Sierra Leone offers more purchasing power per dollar for everyday expenses. However, cost of living varies signif...
Is Sierra Leone or Japan better for digital nomads?
For digital nomads choosing between Sierra Leone and Japan, key factors include internet infrastructure, visa policies, cost of living, and timezone compatibility with clients. Sierra Leone spans 1 timezone while Japan covers 1. Sierra Leone's lower cost of living makes it attractive for stretching ...