About Quality of Life Indices At This Website

Quality of Life Index is an estimation of the overall quality of life in a city or country.It takes into account various factors that impact one's quality of life, including purchasing power, pollution levels, housing affordability, cost of living, safety, healthcare quality, commute times, and climate conditions. The index is designed to provide a comparative measure, where a higher index value indicates a better quality of life.

It's important to note that the Quality of Life Index is based on data and user surveys collected by Numbeo. The surveys capture the perceptions and experiences of visitors to the website regarding various aspects of quality of life. Numbeo strives to provide accurate and up-to-date information by filtering out potential spam and ensuring a sufficient number of contributors for each city or country.

The index is calculated using an empirical formula that assigns weights to each factor based on its importance. The specific formula used by Numbeo may vary and is subject to change. It combines the data collected for each factor to generate a numerical value that represents the quality of life in a particular location.

The Quality of Life Index (higher is better) is an estimation of the overall quality of life by using an empirical formula that takes into account the following factors:

• Purchasing Power Index (higher is better)
• Pollution Index (lower is better)
• House Price to Income Ratio (lower is better)
• Cost of Living Index (lower is better)
• Safety Index (higher is better)
• Health Care Index (higher is better)
• Traffic Commute Time Index (lower is better)
• Climate Index (higher is better)

For detailed information on the calculation of each of these indices used in the Quality of Life Index, please refer to their respective pages using the provided links above.

Current formula (written in Java programming language):

index.main = Math.max(0, 100 + purchasingPowerInclRentIndex / 2.5 - (housePriceToIncomeRatio * 1.0) - costOfLivingIndex / 10 + safetyIndex / 2.0 + healthIndex / 2.5 - trafficTimeIndex / 2.0 - pollutionIndex * 2.0 / 3.0 + climateIndex / 3.0);

Formulas used in the past

Formula used between June 2017 and Decembar 2017

We decided to decrease weight from costOfLivingIndex in this formula:

index.main = Math.max(0, 100 + purchasingPowerInclRentIndex / 2.5 - (housePriceToIncomeRatio * 1.0) - costOfLivingIndex / 5 + safetyIndex / 2.0 + healthIndex / 2.5 - trafficTimeIndex / 2.0 - pollutionIndex * 2.0 / 3.0 + climateIndex / 3.0);

*Note: We did change our formulas in the past. Before June 2017, other formulas have been used.