Worldwide City Rankings

The cost of living indices are compared to New York City (NYC), which serves as the baseline with an index of 100. These provide insights into the relative cost of living in different cities in a country, covering factors like consumer goods, rent, and purchasing power.

The Property Prices Rankings evaluate affordability and investment potential using indices like the Price to Income Ratio, Mortgage as a Percentage of Income, Loan Affordability, Price to Rent Ratio, and Gross Rental Yield.

The Traffic Index combines user-contributed data on commute times, traffic dissatisfaction, CO2 emissions, and traffic system inefficiencies in a country, to provide insights into overall traffic conditions.

The crime ranking by city is based on a continuously updated index, incorporating data up to 36 months old and calculated twice a year. Cities are ranked on a scale from "very low" to "very high" crime levels, with safety being the inverse, where a high safety index indicates a safer city.

The pollution ranking is based on a combination of visitor perceptions and data from institutions like the World Health Organization. The Pollution Index estimates overall pollution levels by considering air and water pollution, garbage disposal, and other factors, with air pollution given the highest weight, while the Pollution Exp Scale uses an exponential function to highlight extremely polluted cities.

The Health Care Rankings evaluates the quality of healthcare systems in a country, based on factors like professionals, equipment, and costs. It emphasizes the positive aspects of healthcare with an exponential scale, providing an assessment of healthcare quality and infrastructure.

The Quality of Life Rankings reflect how livable a city in a country is. It considers factors like purchasing power, pollution, housing affordability, cost of living, safety, healthcare, commute times, and climate. A higher index score means a better quality of life.