Cross-chain · Arbitrum One → Avalanche C-Chain

Swap WETH from Arbitrum One to AVAX on Avalanche C-Chain

Swap WETH from Arbitrum One to AVAX on Avalanche C-Chain. Arbitrum WETH leaves and native AVAX arrives here on C-Chain.

Sell 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1. Arbiscan, chain id 42161, not Nova. Keep ETH for the fee. Receive native AVAX, sentinel 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, on chain id 43114. Snowtrace shows a balance, not WAVAX and not the X-Chain. Blocks are about 2 seconds. Unwrapping WETH on Arbitrum does not create this AVAX.

Diagram for Swap WETH from Arbitrum One to AVAX on Avalanche C-Chain
WETH leaves Arbitrum One. AVAX is what can arrive on Avalanche C-Chain.

Wrapped ether in, C-Chain gas out

Use this when you hold WETH on Arbitrum One and need AVAX to operate on chain id 43114. You do not receive WAVAX. You do not receive a stablecoin. The output can pay C-Chain fees once it arrives. It cannot pay the Arbitrum approval. Leave native ETH beside the WETH so 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 can move.

Do not aim at the X-Chain

Native AVAX exists on more than one Avalanche chain. This credit is C-Chain only. An X-Chain deposit address is the wrong string. P-Chain is wrong. Snowtrace for the C-Chain account balance is the check, not a token page at the sentinel. Avalanche in this route means chain id 43114.

Not a one-for-one unwrap

Withdraw on Arbitrum WETH returns ETH on chain id 42161. This quote is a market into AVAX. The minimum expires. Eighteen decimals do not make the amounts equal. If you unwrap first, you must switch to the native ETH route and reserve a fee. You cannot keep this page's input after the unwrap.

Wrong if the ETH peg should remain

Stop if you need WAVAX. Stop if you need USDC or USDT. Stop if you hold native ETH rather than WETH. Stop for Nova. Stop if you thought the sentinel on Arbitrum already meant AVAX. It means ETH there. Before you sign, compare 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 with 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE on their explorers and stop if either address on the quote differs. Keep the source fee token in the wallet after you choose the trade size. Sign only on the source chain id named in this article, with the wallet network checked.

Legal

Risk disclosure

XAUConnect is a non-custodial swap aggregator. Digital assets are volatile and may lose value rapidly. Content on this page is educational and not investment advice. Verify every contract address on the official block explorer before approving a transaction.

Frequently asked questions

What is the best way to swap WETH from Arbitrum One to AVAX on Avalanche C-Chain?

Sell 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1. Arbiscan, chain id 42161, not Nova. XAUConnect compares live routes and lets your own wallet sign.

Does this deliver WAVAX?

No. The output is native AVAX, sentinel 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, on C-Chain chain id 43114. WAVAX is a different contract. You spend WETH at 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1. Snowtrace shows AVAX as a balance. The X-Chain is not the destination. About 2 seconds is a block interval, not a wrap.

Why is ETH still required?

Gas on Arbitrum One is native ETH, not WETH. The approval and the swap need it on chain id 42161. AVAX arrives later and only on the C-Chain. It cannot fund the signature. If the ETH row is empty, WETH cannot move. Nova is not a spare gas chain.

Will a local unwrap put AVAX in my wallet?

No. Unwrapping 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 pays ETH on Arbitrum One. This page is what can credit C-Chain AVAX. After an unwrap, use the native ETH input and keep a fee. Do not send the result to an X-Chain address. Confirm that address on the explorer before you sign, and refresh the quote if it has expired.

Live execution

Trade on XAUConnect

Open the swap page with this cross-chain route pre-selected, then connect your wallet on the source chain to quote and execute. You keep the keys.

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