Using an Ethereum to USD calculator is the easiest way to keep track of your investment, and to make sure that you always know how much you can profit by selling at any given time. Ethereum calculator is a simple tool, but one that can be very useful, especially in times like these, when coins' prices tend to go up and down almost every other hour. Ethereum calculator, or Ethereum converter, can be used for calculating the price of ETH coins in pretty much any fiat currency, or even any altcoin. However, most people tend to buy Ethereum with fiat currencies, like USD, and to sell their coins for USD as well. Alternatively, ETH can also be used for buying new tokens, available in ICOs. ICOs typically set up a price of the token they are offering in USD or EUR, and in rare cases — even in some other cryptocurrency. With the great majority of them accepting ethereum, using an ETH calculator to figure out how much tokens can you buy with a single ETH can save you a lot of time, and help you avoid confusion or mistakes. In most cases, you will use Ethereum to USD converter, and all converters are capable of providing such calculations. If you need an ETH converter that will display how much Ethereum you need to buy some other altcoin, those are very common, as well, and a quick Google search will return a few of them within seconds. Tools like Ethereum converter might seem unnecessary to you if you only trade small amounts, but as you start trading on different exchanges, and enter numerous trade deals at the same time — these tools can be a real lifesaver, so don't underestimate their usefulness. And, of course, they are absolutely necessary when it comes to investing and keeping an eye on the value of your total funds.