Chrome: When you're reading articles that have a lot of big numbers in them it can be hard to actually wrap you mind around what those numbers mean. A figure like "342,234 acres" doesn't really mean much to most of us; Dictionary of Numbers is a Chrome extension that turns those numbers into terms we can understand.
Dictionary of Numbers is simple to operate. When you're browsing the web and run across a large number, it drops in a point of reference you're more likely to understand. For example, 342,234 acres is followed by "~Los Angeles, California, USA (city)". (As that example hints, comprehension is often a relative phenomenon.)
Dictionary of numbers also pulls up suggestions when you're typing large numbers, and allows you to search for terms. If you struggle to wrap your mind around large numbers, whether it's money, size or distance, Dictionary of Numbers can make it easier to get a grasp on what an article is talking about.