Country Openness Index
Country Openness Index (COI) measures how open a country is to visitors from
What does it mean?
It indicates, in percentage terms, what fraction of the world's population can visit a particular country without a visa. A Country Openness Index of 100 indicates that everyone in the world can come to a particular country without a visa; an index of 30 indicates that 30% of the world population can visit this country without a visa. Thus, the higher the Country Openness Index for a particular country, the greater the percentage of the world's population that can visit this country without needing to obtain a visa prior to the visit--and the more open this country is to the rest of the world.
How is it calculated?
COI is calculated as a ratio. Numerator in this ratio is the sum of the populations of all countries whose citizens can visit this particular country without a visa (most frequently, for a seven day stay), including this particular country’s population; in the denominator is the entire population of humanity.
Data regarding visa information is updated once a year. Best effort is made to make the data accurate at the time of updating; however, visa requirements change frequently, making this data potentially out of date. Furthermore, data provided here is most frequently relevant to a seven day stay; therefore, it may be the case that for a longer stay a visa is required, even though, for the purposes of the index calculation, no visa is indicated. We therefore urge anyone contemplating travel to a particular country not to rely on this data for trip planning purpose and to inquire with a destination country’s embassy or consulate regarding most recent and updated visa information.