Sweden is the best place to grow old and Afghanistan the worst, according to a UN-backed study that warns many countries are ill-prepared to deal with the old-age time bomb.
Australia came 14th in the Global AgeWatch Index - the first of its kind.
In a rapidly-greying world, the index found Sweden, known for its generous welfare state, followed by Norway and Germany were best equipped to deal with the challenges of an ageing population.
How countries care for their senior citizens will become increasingly important as the number of people over 60 is set to soar from about 809 million today to more than two billion by 2050 - when they will account for more than one in five people on the planet, the report said.
The survey ranked many African and South Asian countries as the worst places to be retired, with Tanzania, Pakistan and Afghanistan rounding out the bottom three.
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The index was compiled by the HelpAge International advocacy group and the UN Population Fund in a bid to provide much-needed data on ageing populations worldwide.
It ranked the social and economic wellbeing of the elderly in 91 countries, by comparing data from the World Health Organisation and other global agencies on older people's incomes, health, education, employment and their environments.
While the world's richest countries - including Western European nations, the US and Japan - predictably ranked highly, the report somewhat surprisingly found that a number of lower-income countries had put in place policies that significantly improved the quality of life for their elderly.
Bolivia, which offers free healthcare to its older citizens despite being one of the poorest surveyed countries, and Sri Lanka, with its long-term investments in health and education, were among those singled out for praise.
