You can use the above exchange here on my website, or visit Changelly.com.
Pay with : The currency that you currently hold
You Get : The currency that you wish to hold
You will provide a receiving address for the new crypto that you want to exchange to, you will also provide a return address for the crypto that you are using to exchange. Once you start an exchange. You will be given an address to send your current crypto to, and your exchange will commence. Exchanges on Changelly usually take anywhere from 5-30 minutes depending on network traffic. If the network is too congested to fulfill your exchange, the crypto will be returned to your return address.