# Swap WAVES ⇌ USDN
Waves.Exchange provides service for swapping WAVES to USDN or USDN to WAVES at any time. The swapping process and the exchange rate is regulated by the smart contract (opens new window). The service allows swapping any amount not less than 1 asset.
Important: Swap transactions complete within 60 minutes to 7 days (60-10080 blocks). The exact time of the swap is determined randomly by the smart contract within 60-10080 blocks. Swaps are executed by the price in the next block that follows the swap transaction. Swap transactions cannot be cancelled. You can have only one active swap transaction at a time.
Swapping service can be accessed on the Trading > Swap WAVES/USDN (opens new window) tab.
Or from USDN staking (opens new window) page.
Or by clicking Swap on the Wallet tab.
Note: If you need to buy more assets, click Buy with Card ( 
) next to the asset that you want to buy for quick access to the payment method selection on the buying page.
# Swap WAVES to USDN
On the Swap WAVES ⇌ USDN page open WAVES to USDN tab.
Enter the amount of WAVES that you want to swap to USDN in the I send field. In the I receive field the amount of USDN that you will receive will be displayed. The current exchange rate, the transaction fee and the Protocol Fee (opens new window) will be displayed below the field.
Click on the Transaction Fee to specify the asset that you want to use to pay the transaction fee.
Read the conditions carefully and type I agree in the confirmation field.
Click Exchange to USDN via Smart Contract to continue.
You can review the status of your transactions on the Wallet > Internal Transactions (opens new window) tab. Read more about transactions tabs.
# Swap USDN to WAVES
On the Swap WAVES ⇌ USDN page open USDN to WAVES tab.
Enter the amount of USDN that you want to swap to WAVES in the I send field. In the I receive field the amount of WAVES that you will receive will be displayed. The current exchange rate, the transaction fee and the Protocol Fee (opens new window) will be displayed below the field.
Click on the Transaction Fee to specify the asset that you want to use to pay the transaction fee.
Read the conditions carefully and type I agree in the confirmation field.
Click Exchange to WAVES via Smart Contract to continue.
You can review the status of your transactions on the Wallet > Internal Transactions (opens new window) tab. Read more about transactions tabs. You can review swap transaction status at the Swap WAVES ⇌ USDN page.
See more articles in the Asset Management chapter.
If you have difficulties with Waves.Exchange, please create a support (opens new window) ticket or write a question on our forum (opens new window).