"A teaspoon of sugar is equal to 4 grams of sugar."
When trying to compare the amount a country spends on healthcare you just can't take their currency and convert it to dollars, you have to use a ratio of some kind, such as:
- cost per citizen per year
- total spending on healthcare vs GDP
Here's a graphic from National Geographic about the cost of healthcare vs the life expectancy. As you can see the US spends a HUGE amount of money with little increase in life span for it. In fact, US spending for healthcare is off the charts.
Here's a graphic about healthcare spending as a percent of GDP for many countries. Even countries with socialized medicine spend less per GDP, however their income taxes are also a bit higher than in the US.