How to Bridge Crypto Between Chains (Solana, BNB Chain, Ethereum, Base)

You hold SOL, but the coin you want to buy lives on BNB Chain. Or your USDT is on Ethereum and you want to trade on Solana, where fees are tiny. Moving value from one blockchain to another is called bridging, and it is one of the steps beginners find most confusing.

Blockchains cannot talk to each other directly. A token on Solana does not exist on Ethereum. So every method below does the same thing underneath: it takes your coins on one chain and gives you the equivalent on the other.

Way 1: Go through a centralised exchange

The oldest route, and still a simple one if you already use an exchange.

1. Deposit your coins to the exchange on the chain they are on now, for example USDT on Ethereum.
2. Withdraw them on the chain you want, for example USDT on Solana.

Pros: familiar, and you can swap between coins on the exchange in the middle. Cons: you need an account, your coins sit with the exchange for a while, and you pay a withdrawal fee. Picking the wrong network on either side can lose the funds.

Way 2: Use a bridge

A bridge is an app that locks or swaps your coins on one chain and releases them on the other. You connect your wallet, pick the source chain, the destination chain and the amount, and sign.

Pros: no exchange account; often fast, from seconds to a few minutes. Cons: you need gas on the source chain, you have to pick a reputable bridge, and some bridges give you a wrapped version of a coin rather than the real one (more on that below).

Bridges have been among the most hacked apps in crypto. Use well-known, widely used ones, and do not leave funds sitting in a bridge.

Way 3: A cross-chain swap, in one step

The newest route combines the bridge and the trade. You pay with what you hold on one chain and receive the coin you want on another, in a single transaction. Behind the scenes, a bridging service moves the value and a DEX buys the coin.

This is how the Crypto War Room terminal works when a coin lives on a different chain from what you pay with: pay with SOL, BNB, ETH or USDT on Solana, BNB Chain or Ethereum, and the swap delivers the coin on its own chain. The quote shows the bridge cost and the expected time before you sign.

Pros: one step, no exchange, no need to hold gas on the destination chain to receive the coin. Cons: a small bridging cost on top of the swap; you still need the right wallet type for the destination (a Solana wallet for Solana coins, an EVM wallet for the others).

Real coins vs wrapped coins

When Bitcoin moves to Ethereum, it usually becomes WBTC: a token that represents Bitcoin and is backed by Bitcoin held somewhere else. Wrapped tokens are useful, but they are an IOU, with extra risk if the backing ever fails.

The rule: know which version you are receiving. A coin's own chain usually has the deepest market. See DEX vs CEX and our coin pages, which show the chain each coin trades on.

What bridging costs

• Gas on the source chain, to send the transaction. See gas fees by chain.
• The bridge's fee, often a small percentage or a fixed amount.
• Gas on the destination chain, if you need to do anything with the coins once they arrive.

For small amounts, fixed costs matter. Bridging $20 from Ethereum can cost a large share of it. Bridging from Solana or BNB Chain is usually much cheaper.

Mistakes that lose money

• Wrong wallet type for the destination. An EVM address cannot receive Solana tokens, and the reverse.
• No gas on the destination chain to move or sell what arrived.
• Fake bridge sites. Bookmark the real address; never click bridge links in DMs.
• Panicking when funds take a few minutes. Most bridges show a status page; check it before assuming the worst.
• Bridging a tiny amount from an expensive chain, where fees eat it.

The short version

If you just want to buy a coin that lives on another chain, a cross-chain swap is the simplest path: one quote, one signature. If you want to move funds to sit on another chain, use a reputable bridge or an exchange, and send a small test first.

To see which chain a coin trades on and buy it from whatever you hold, open its page, for example how to buy Solana, or check prices in your currency with the crypto converter.