I believe someone asked this question, but about converting ETH -> WETH: Wrapped ETH, or WETH, is a token that represents Ether on a 1:1 ratio, and conforms to the ERC20 token standard. By conforming to ERC20, it allows for increased functionality including but not limited to atomic swaps. Often, dApps will require users to convert from ETH to WETH because WETH offers additional functionality.
I believe someone asked this question, but about converting ETH -> WETH: Wrapped ETH, or WETH, is a token that represents Ether on a 1:1 ratio, and conforms to the ERC20 token standard. By conforming to ERC20, it allows for increased functionality including but not limited to atomic swaps. Often, dApps will require users to convert from ETH to WETH because WETH offers additional functionality.