In International Living's Annual Global Retirement Index 2018, we ranked the 24 best retirement havens in the world, where you can live comfortably for less than you can in the U.S. And while all of these destinations are affordable, we have found the most cost-effective havens from the results of the "Cost of Living" category in the Index.

This is possibly our most definitive category in the Index, due to the ease of getting hard numbers. Each of our scouts fills in extensive cost-of-living questionnaires tailored to the needs and wants of an expat retiree. The category evaluates things like day-to-day expenses—from the cost of a flight back to the U.S., groceries, rent, movie theater tickets, eating out, garbage collection, gas, gym membership, and all the hidden and often unconsidered costs.