# TON ↔ WTON

You can wrap TON into WTON or unwrap WTON back into TON via Etherscan. 

1. TON → WTON
   1. Step 1 : Approve 
      1. Visit [Approve](https://etherscan.io/address/0x2be5e8c109e2197d077d13a82daead6a9b3433c5#writeContract#F2)

         <figure><img src="https://3565366697-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl0dwiwSNGrEYCAvrI0ht%2Fuploads%2FDMXFzlcoyLIwoHgMhh8n%2Fimage.png?alt=media&#x26;token=00bbf4b0-c52c-4f82-9c1b-2d21f066ce50" alt=""><figcaption><p>Approve section of Etherscan</p></figcaption></figure>

      2. Spender : [0xc4A11aaf6ea915Ed7Ac194161d2fC9384F15bff2](https://etherscan.io/address/0xc4A11aaf6ea915Ed7Ac194161d2fC9384F15bff2) (fix value, WTON Contract)

      3. Amount : Amount to swap TON to WTON (TON decimal is 18)
         * Example : 1000000000000000000 (1 TON)
   2. Step 2 : swapFromTON&#x20;
      1. Visit [swapFromTON ](https://etherscan.io/address/0xc4a11aaf6ea915ed7ac194161d2fc9384f15bff2#writeContract#F18)

         <figure><img src="https://3565366697-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl0dwiwSNGrEYCAvrI0ht%2Fuploads%2FIMhdSNttr7Jh5MReN0WX%2Fimage.png?alt=media&#x26;token=7354e0a2-8453-4e0b-acb4-c3095c61205e" alt=""><figcaption><p>swapFromTON section of Etherscan</p></figcaption></figure>

      2. tonAmount : Enter the amount you want to swap TON to WTON (it must not be greater than the value you approved in Step 1).<br>
2. WTON → TON
   1. Visit [swapToTON](https://etherscan.io/address/0xc4a11aaf6ea915ed7ac194161d2fc9384f15bff2#writeContract#F20)&#x20;

      <figure><img src="https://3565366697-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl0dwiwSNGrEYCAvrI0ht%2Fuploads%2F73fIYBYcQdSWOSpzHUvt%2Fimage.png?alt=media&#x26;token=9d1f08ad-2a18-4940-8b90-a441ba55ab9c" alt=""><figcaption><p>swapToTON of Etherscan</p></figcaption></figure>

   2. wtonAmount : Amount to swap WTON to TON (WTON decimal is 27)
      * Example : 1000000000000000000000000000 (1 WTON)