The survey was carried out by InterNations, a network and information site for people who live and work abroad with 3.1 million members in 420 cities around the world.
For the survey, InterNations asked about 13,000 expatriates representing 166 nationalities and living in 188 countries or territories to provide information on various aspects of expat life, as well as their gender, age, and nationality.
Participants were asked to rate 43 different aspects of life abroad on a scale of one to seven. This data was then used to create ratings for six different indices: quality of life, ease of settling in, working abroad, family life, personal finance and cost of living.
The rating process emphasized the respondents' personal satisfaction with these aspects and considered both emotional topics as well as more factual aspects with equal weight, InterNations writes in a press release.
Denmark was found to be the country with the overall highest-rated work-life balance, according to the responses from internationals participating in the survey.
76 percent of people in Denmark said they were satisfied with their work-life balance and 82 percent were satisfied with working hours. The average length of a working week for internationals in Denmark was found to be 39.7 hours.
That means that internationals working full time in Denmark have the shortest working week of the featured countries.
Close to half the respondents from Denmark (47 percent) have a master's degree or similar, and 12 percent hold a PhD, twice the global average (6 percent).
On a global scale, expats working full time spend an average of 44.3 hours a week at work: about three in five of them are satisfied with their work-life balance (60 percent) as well as their working hours (61 percent).
Interestingly, it seems like it is not only the number of hours spent at work that lead to a high satisfaction with work-life balance. The ranking shows that those who are the most satisfied with their work-life balance do not necessarily work significantly fewer hours. But in most of the countries, they express above-average satisfaction with their life abroad in general — for example in Costa Rica (88 percent), and the Czech Republic (87 percent), where the working week is over 44 hours.
Bahrain, Norway, the Czech Republic and New Zealand followed Denmark on the list's top five while Scandinavian neighbour Sweden placed sixth.
For a country to be featured in the indices and consequently in the overall ranking, a sample size of at least 75 survey participants per country was necessary. The only exception to this is the Family Life Index, where a sample size of more than 40 respondents raising children abroad was required.