Select BTC as the cryptocurrency you want to swap in "You send" cryptocurrency list. Select BCH as the cryptocurrency you want to receive as the swap result in "You get" list.
Enter the exact amount you of BTC are willing to swap into "You send" box. Check the estimated payout amount of BCH in "You get" box.
Enter the payout BCH wallet address into "Receive to ... address" box. You can also provide a refund BTC wallet address at this step if you want to get your Bitcoin back automatically in case of a transaction failure.
If all provided values are valid and correct, the background of "Swap" button will turn green. Click the button to create the BTC to BCH swap transaction. You will be redirected to the swap transaction page.
On the BTC to BCH swap transaction page, you will see a deposit BTC address. Send the exact amount of Bitcoin shown on the page to the deposit address.
The rest of the BTC to BCH swap process is automated, all you have to do is wait a bit for the process to complete. You can track the status of your BTC to BCH swap on the transaction page. Typically, most swaps take from 5 to 60 minutes. In some cases, when at least one of involved crypto networks is congested, the transaction could take longer than that.
When the swap status is "Finished", you can see a new inbound BCH transaction in your receiving Bitcoin Cash wallet.