Wrapped Ether (WETH) is an ERC-20 token that represents a one-to-one peg with Ether, the native cryptocurrency of the Ethereum blockchain. Essentially, WETH is a tokenized version of Ether that adheres to the ERC-20 standard, making it compatible with the wide array of decentralized applications and smart contracts that support this standard.

What are the differences between ETH and WETH?

ETH is the Ethereum blockchain’s native cryptocurrency. WETH is a “wrapped” version of ETH that allows for additional functionality.

How does WETH work?

First, a user sends a specified amount of ETH to a decentralized smart contract designed to generate WETH. The smart contract stores the ETH in a reserve and creates an equal number of WETH tokens for the user.

Next, the user receives the WETH tokens. Here’s how it works: after the user sends their ETH, the smart contract verifies it and transfers a corresponding amount of WETH tokens to the user’s wallet. These WETH tokens can then be used in Ethereum blockchain transactions as any other ERC-20 token.

And how is WETH converted back into ETH? When the user wants to convert their WETH tokens back to ETH, they can send them back to the smart contract (which will burn them) and receive an equivalent amount of ETH in return. This process is known as “unwrapping” and is essentially the same as wrapping but in reverse.

Wrapping ETH to WETH

Utilize your wallet to convert ETH to WETH. ETH can often be wrapped directly through your wallet provider or a decentralized exchange.  However, OpenSea also provides a simple interface through the wallet icon that allows you to wrap ETH and unwrap WETH by interacting directly with the Blockchain.

  • Connect your wallet: To get started, you must first link OpenSea to your Ethereum wallet. Many wallets, such as MetaMask, WalletConnect, and Coinbase Wallet, are compatible with OpenSea.
  • If you do not already have enough native ETH in your wallet, you will need to deposit some. You can accomplish this by selecting the “Deposit” option and specifying the amount of ETH you wish to deposit.
  • Wrap ETH: Once you have ETH in your OpenSea wallet, select the “Wrap” option to convert it to WETH. In doing so, you will initiate a blockchain transaction in which you send your ETH to a decentralized smart contract, which will generate an equivalent amount of WETH for you.
  • Use your WETH: Once your ETH has been wrapped into WETH, you can use it to place offers on OpenSea and other Ethereum dApps. You can also convert your WETH back into ETH at any time by selecting the “Unwrap” option and entering the amount of WETH you want to unwrap.

What are the advantages of using WETH?

WETH can be used in auction-style transactions or to make offers. While ETH requires users to send their payment at the time of the transaction, WETH allows you to create a pre-authorized bid (or offer) on an NFT, which can be completed as soon as the buyer accepts. It also allows users to place bids or offers on multiple NFTs with the same WETH.

WETH and other wrapped currencies gained popularity in response to the limited interoperability of early token contracts. In the early days of Ethereum, many people used smart contracts to create and sell fungible tokens, but there was no unified standard to which all of these new tokens had to adhere. This created a slew of incompatibilities and issues.

Enter ERC-20. These standards were developed in 2015 and implemented a set of operations that each token had to perform in order to be compatible with other tokens. Because of the standardization, developers were also able to establish best practices, which enhanced the network’s security and dependability.ETH is not compliant with ERC-20 and predates those standards. Since WETH represents ETH at an equal value, it can be used in places where ETH cannot be used due to its compliance with ERC-20.

Can using WETH reduce gas fees?

Depending on the application, WETH may be able to reduce gas fees. Gas fees are payments required to execute blockchain transactions, and users who trade a variety of tokens on the Ethereum blockchain frequently need to make multiple transactions. Each action, including wrapping ETH, incurs a gas fee; however, using WETH may help reduce the number of transactions required to complete a transaction, potentially saving them gas fees.


Wrapped Ether plays a crucial role in fostering interoperability and expanding the use cases of Ethereum within the decentralized finance ecosystem. As the DeFi space continues to evolve, WETH is likely to remain a key instrument for users seeking to leverage the benefits of both native ETH and ERC-20 tokens. However, it’s important for participants to exercise caution, conduct thorough research, and stay informed about the risks associated with decentralized finance and WETH transactions.


Q: What does WETH mean?
WETH stands for “Wrapped Ether.” It is an Ethereum-based token that represents Ether (ETH) in a standardized format compatible with the ERC-20 token standard. WETH is often used in decentralized finance (DeFi) applications and smart contracts on the Ethereum blockchain, allowing users to interact with Ether in a more versatile and standardized way. Essentially, WETH is a wrapped version of Ether that can be easily traded and utilized within the Ethereum ecosystem.

Q: Why do we use WETH?
Wrapped Ether (WETH) is used to enable Ethereum-based tokens to be traded on decentralized exchanges (DEXs) that utilize the ERC-20 standard. WETH represents Ether in token form, making it compatible with ERC-20 smart contracts and allowing seamless trading on platforms like Uniswap. This tokenization of Ether streamlines liquidity provision and trading on decentralized platforms, enhancing interoperability within the Ethereum ecosystem.

Q: Who created wrapped Ethereum?
Wrapped Ethereum (WETH) is an ERC-20 token pegged 1:1 to Ethereum, allowing it to be traded on decentralized exchanges. It was created by a community effort led by the team at Republic Protocol in 2018. WETH facilitates easier trading and liquidity provision within the Ethereum ecosystem by representing Ether in the form of a standard ERC-20 token.

Q: Can I convert WETH to ETH?
Yes, you can convert Wrapped Ether (WETH) to Ether (ETH) by utilizing decentralized exchanges or liquidity pools. WETH is an ERC-20 token representing Ether on the Ethereum blockchain. To convert WETH to ETH, you can trade WETH for ETH on platforms like Uniswap or other decentralized exchanges that support these tokens. Simply initiate a swap, and the conversion will be processed through smart contracts, ensuring a seamless exchange between the two assets.