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How to Wrap ETH to WETH

381e35

11/12/2026

#plugs#ethereum#weth#how to

in the form of an ERC-20 token. Native

predates the ERC-20 standard, so it has no approve and no transferFrom, and a contract can't pull it from your wallet the way it pulls any other token. The WETH contract fixes that by holding your

and giving you the same amount of

, which behaves like every other token.

Wrapping is not a trade. You send

to the contract and it mints exactly that much

to you. There is no price, no slippage and no fee beyond gas.

When You Need WETH

Most of the time an app wraps for you without asking. You need to do it yourself when something only takes the ERC-20 form: a lending market that lists

rather than

, a Uniswap V2 pair, an NFT marketplace offer, or a contract you are calling directly.

The Three Ways To Wrap

In a swap interface. Pick

as the token you pay and

as the token you get. Most swap apps change the button from "Swap" to "Wrap" and show a rate of exactly 1 to 1, because they call the WETH contract instead of routing through a pool.

On the contract itself. On Ethereum, the WETH contract is 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2. Open it on a block explorer, connect your wallet under "Write Contract", and call deposit with the amount of

in the payable value field. Sending

to the contract address with no data does the same thing. Leave some

unwrapped, because gas is still paid in native

With a plug. The plug below takes the amount you type and wraps it.

Wrap With Plug

Use in App

It runs on Ethereum and does two things:

Takes the amount you want to wrap, in normal units, so 0.5 means half an
and not a number in wei.
Calls the wrap action, which sends that much
to the WETH contract's deposit and leaves the same amount of
in your wallet.

Open it, connect the wallet that holds the

, type an amount and run it. Nothing in the plug is tied to anyone else's address.

What It Costs

Wrapping has no fee. The WETH contract mints one for one, and the only cost is gas. On Ethereum at the gas prices of November 2026, well under a gwei, a direct deposit costs less than a cent. A run through Plug does more work around the deposit and uses more gas, which comes to about five cents at the same prices. When the network is busy both cost more.