Swapping Bitcoin (BTC) to Ethereum (ETH) is one of the most popular crypto exchanges. Whether you're diversifying your portfolio, funding a DeFi protocol, or simply rebalancing, this guide walks you through the process on SyntheticSwap.
Before You Start
You'll need:
- A Bitcoin wallet with funds you want to swap
- An Ethereum wallet address to receive ETH (e.g., MetaMask, Ledger, or any ETH-compatible wallet)
- Optionally: a Bitcoin refund address (in case the swap fails or expires)
Step 1: Select Your Pair
On the SyntheticSwap homepage, select **BTC** in the "You send" section and **ETH** in the "You receive" section. You can click the BTC→ETH pair in the Top Pairs grid to auto-fill this.
Step 2: Enter Amount
Type the amount of BTC you want to exchange. You'll see the minimum and maximum allowed amounts displayed below the input. The estimated ETH you'll receive updates automatically.
Step 3: Enter Your ETH Address
Paste your Ethereum wallet address in the "Destination address" field. SyntheticSwap validates it in real time — you'll see a green checkmark if the address format is correct.
Step 4: Optionally Add a Refund Address
If the swap fails for any reason (network congestion, rate expiry), adding a BTC refund address ensures your funds come back to you automatically. This is strongly recommended.
Step 5: Click "Swap Now"
Confirm the swap. You'll be taken to a status page showing a unique deposit address where you need to send your BTC.
Step 6: Send BTC
Send the exact amount of BTC to the displayed deposit address. Once the blockchain confirms your transaction, the swap begins automatically.
Step 7: Receive ETH
Within minutes (depending on network conditions), ETH arrives at your wallet. You can track progress on the status page in real time.
Tips
- Always double-check the destination address before sending — crypto transactions are irreversible.
- BTC confirmations typically take 10–30 minutes; ETH is faster.
- For large amounts, test with a small amount first.
That's it — BTC to ETH, no account, no KYC, no waiting.