Bridge ETH to BTC

Symbiosis delivers a fast and straightforward way to bridge Ethereum (ETH) to Bitcoin (BTC), combining fair pricing, a clean user flow, and support for multiple assets and networks

/intro

What is Symbiosis ETH to BTC bridge?

The Symbiosis ETH to BTC bridge is a technology that enables a direct and secure way to move ETH from the Ethereum blockchain to BTC on the Bitcoin network. Bridging allows users to transfer cryptocurrency between independent chains without manual conversions, custodial services, or multiple platforms. Instead of dealing with incompatible systems, the bridge connects them into a single, straightforward process that preserves your asset ownership and reduces the risk of mistakes.


Symbiosis delivers this process more efficiently than traditional bridging services because all operations run inside a fully decentralized architecture with no KYC required. The protocol manages routing, liquidity, and execution automatically, ensuring that every ETH to BTC bridge is predictable, secure, and resistant to network overloads. With Symbiosis, users receive a stable, transparent, and fast bridging experience powered by infrastructure built specifically for cross-chain transactions.

/how-to

How to Bridge ETH to BTC?

How to Bridge ETH to BTC?
How to Bridge ETH to BTC?
How to Bridge ETH to BTC?
How to Bridge ETH to BTC?

Step 1: Initiate Your Wallet Handshake

Step 1: Initiate Your Wallet Handshake

Open the Symbiosis WebApp and link your wallet. Once connected, the interface displays your balance and allows you to start with 1 ETH, shown as $3031.45 and a balance of 0.0031 ETH.

Open the Symbiosis WebApp and link your wallet. Once connected, the interface displays your balance and allows you to start with 1 ETH, shown as $3031.45 and a balance of 0.0031 ETH.

Step 2: Set ETH and BTC Amounts

Step 2: Set ETH and BTC Amounts

In the “From Ethereum” field, enter 1 ETH. The “To Bitcoin” field immediately shows 0.03335921 BTC, valued at $3025.25. This is the amount estimated for your transfer on the Bitcoin network.

In the “From Ethereum” field, enter 1 ETH. The “To Bitcoin” field immediately shows 0.03335921 BTC, valued at $3025.25. This is the amount estimated for your transfer on the Bitcoin network.

Step 3: Add the Bitcoin Address

Step 3: Add the Bitcoin Address

Paste your Bitcoin address into the field. Tick the box confirming that this destination is a self-custodial wallet (EOA) and not an exchange or smart contract.

Paste your Bitcoin address into the field. Tick the box confirming that this destination is a self-custodial wallet (EOA) and not an exchange or smart contract.

Step 4: Review the Minimum Output

Step 4: Review the Minimum Output

Check the Minimum received value. In this case, the guaranteed amount appears as 0.0331924 BTC.

Below, the route is displayed clearly: ETH → USDC → BTC, showing the exact bridging path.

Check the Minimum received value. In this case, the guaranteed amount appears as 0.0331924 BTC.

Below, the route is displayed clearly: ETH → USDC → BTC, showing the exact bridging path.

Step 5: Adjust Network and Confirm

Step 5: Adjust Network and Confirm

Ensure your wallet is aligned with the Ethereum network. Verify every detail:

– 1 ETH sent

– receiving address

– expected Bitcoin output

– route and minimum amount

Everything must match the numbers shown on the screen.

Ensure your wallet is aligned with the Ethereum network. Verify every detail:

– 1 ETH sent

– receiving address

– expected Bitcoin output

– route and minimum amount

Everything must match the numbers shown on the screen.

Step 6: Start the Operation

Step 6: Start the Operation

Once ready, click the “SWAP” button at the bottom.

Approve the transaction in your wallet. After processing, Symbiosis delivers your 0.0333 BTC (minus any route adjustments) directly to the address you provided.

Once ready, click the “SWAP” button at the bottom.

Approve the transaction in your wallet. After processing, Symbiosis delivers your 0.0333 BTC (minus any route adjustments) directly to the address you provided.

/details

What is ETH to BTC Cross-Chain Bridge?

The Symbiosis ETH to BTC bridge relies on a dedicated architecture created to safely move value between the Ethereum network and the Bitcoin blockchain. Since Bitcoin doesn’t support smart contracts like EVM chains, Symbiosis uses external components to coordinate every part of the process.


A trusted element called the Forwarder generates a unique BTC address for each request, receives the user’s Bitcoin, and passes it into the cross-chain flow. At the same time, the relayers network verifies data and transfers instructions across chains through its MPC-secured communication layer.


When BTC needs to move into an EVM ecosystem, it is wrapped into syBTC, and when it returns back to Bitcoin, syBTC is burned and native BTC is released. This keeps the process fully backed 1:1 and allows the bridge to function reliably between two fundamentally different blockchains.

The Symbiosis ETH to BTC bridge relies on a dedicated architecture created to safely move value between the Ethereum network and the Bitcoin blockchain. Since Bitcoin doesn’t support smart contracts like EVM chains, Symbiosis uses external components to coordinate every part of the process.


A trusted element called the Forwarder generates a unique BTC address for each request, receives the user’s Bitcoin, and passes it into the cross-chain flow. At the same time, the relayers network verifies data and transfers instructions across chains through its MPC-secured communication layer.


When BTC needs to move into an EVM ecosystem, it is wrapped into syBTC, and when it returns back to Bitcoin, syBTC is burned and native BTC is released. This keeps the process fully backed 1:1 and allows the bridge to function reliably between two fundamentally different blockchains.

/about

Why People Choose Symbiosis for ETH-BTC Bridging

Why People Choose Symbiosis for ETH-BTC Bridging

Self-Managed Funds, Always

Symbiosis doesn’t hold your assets at any point in the process. Every ETH↔BTC transfer is executed directly from your wallet, so you stay in full control from start to finish.

Decentralized MPC Validation Layer

Cross-chain operations are routed through an MPC-powered relayer network that verifies and delivers each step independently. This removes single points of failure and keeps routing consistent.

Built-In Support for Bitcoin’s Structure

Bitcoin’s non-EVM specifics are handled under the hood by the forwarder and portal system. For the user, the entire bridge feels no different from moving any standard token.

/faq

Frequently Asked Questions

Is the ETH to BTC bridge custodial?

No. The bridge works on a non-custodial model, meaning your funds never leave your control at any point in the process.

Can I send BTC to an exchange deposit address?

You shouldn’t. Only self-custodial Bitcoin wallets are compatible, since exchange deposits can’t correctly handle the final output of the cross-chain transfer.

How long does an ETH to BTC transfer usually take?

Most transfers wrap up within a few minutes, though exact timing depends on network activity and the speed of Bitcoin confirmations.

/routes

Popular Bridge routes for BTC

Here are several Symbiosis routes you might find useful: 

/guides

Step-by-step network guides

/chart

/chart

ETH/BTC

ETH/BTC

Bridge tokens across

Bridge tokens across

ethereum|
ethereum|

Symbiosis is a cross-chain AMM DEX that pools together liquidity from different networks: L1s and L2s, EVM and non-EVM. With Symbiosis, you can easily swap any token and move your assets across different networks.

Symbiosis is a cross-chain AMM DEX that pools together liquidity from different networks: L1s and L2s, EVM and non-EVM. With Symbiosis, you can easily swap any token and move your assets across different networks.