How is the answer worked out?

Each round takes a documented historical price and multiplies it by today's Consumer Price Index divided by the CPI of the price's year · the standard way economists convert old money into today's money. The game shows you the multiplier.

Are the old prices real?

Yes · they are widely-cited average US prices for their year (a loaf of bread, a movie ticket, a gallon of gas, a new car, and so on), and the CPI figures come from the US Bureau of Labor Statistics.

Why is a 1950 dollar worth so much more now?

Because prices have risen almost every year since, and the increases compound. The US CPI has multiplied roughly thirteen-fold since 1950, so a 1950 dollar buys about what thirteen dollars buy today.

Is this in US dollars?

Yes · the prices and the CPI are American, so the figures are in US dollars. The underlying idea · that inflation makes old money worth more in today's terms · is the same everywhere.

Does it work offline?

Yes. PlayMemorize is a Progressive Web App, so Inflation keeps working without a connection once the page has loaded.

Inflation

1950年一条面包卖12美分 · 按真实CPI,猜猜过去的价格折成今天的钱值多少

过去的钱要经用得多。每一轮都会用图表展示一个真实的美国价格在几十年间的变化 · 看趋势，算出它相当于今天的多少钱。

连胜 0最佳 0

在 1950 年，一个一条面包价值 $0.12。该金额在今天的价值是多少？

已记录到2000年的价格 · 把趋势延伸到今天

历史物价和消费者物价指数（CPI）来自美国劳工统计局。查看来源

提示: 一个世纪的通货膨胀累积很快 · 1950 年的一个美元相当于今天的十多美元。

FAQ

About Inflation

Inflation is a quick, slightly startling lesson in how much money has changed. Each round shows a real, documented US price from decades ago · a loaf of bread for 12 cents in 1950, a gallon of gas for 36 cents in 1970 · and asks what that price is worth in today's money. Four choices; pick the closest.

The answer is real maths, not a guess. When you choose, the game shows the true figure, worked out from the actual US Consumer Price Index: the old price multiplied by today's CPI divided by the CPI of that year. So a 1950 dollar really is worth more than ten of today's dollars, and you can see exactly why.

Build a streak. Each correct answer grows your streak and your best is kept. Over a run you develop a feel for just how steep a century of inflation really is · and why your grandparents' prices sound impossible.

Prices and the CPI come from the US Bureau of Labor Statistics. Part of the PlayMemorize family · runs entirely in your browser and works offline as a Progressive Web App.

如何精通

FAQ

How is the answer worked out?

Each round takes a documented historical price and multiplies it by today's Consumer Price Index divided by the CPI of the price's year · the standard way economists convert old money into today's money. The game shows you the multiplier.
Are the old prices real?

Yes · they are widely-cited average US prices for their year (a loaf of bread, a movie ticket, a gallon of gas, a new car, and so on), and the CPI figures come from the US Bureau of Labor Statistics.
Why is a 1950 dollar worth so much more now?

Because prices have risen almost every year since, and the increases compound. The US CPI has multiplied roughly thirteen-fold since 1950, so a 1950 dollar buys about what thirteen dollars buy today.
Is this in US dollars?

Yes · the prices and the CPI are American, so the figures are in US dollars. The underlying idea · that inflation makes old money worth more in today's terms · is the same everywhere.
Does it work offline?

Yes. PlayMemorize is a Progressive Web App, so Inflation keeps working without a connection once the page has loaded.