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Ethereum to Base Bridge

Bridge tokens from Ethereum to Base via Symbiosis — non-custodial cross-chain swap for Base DeFi and Coinbase-native apps. No KYC, flat protocol fee.

Bridge tokens from Ethereum to Base via Symbiosis — non-custodial cross-chain swap for Base DeFi and Coinbase-native apps. No KYC, flat protocol fee.

Open Ethereum to Base bridge

Open Ethereum to Base bridge

Open Ethereum to Base bridge

Open Ethereum to Base bridge

Open Ethereum to Base bridge

Open Ethereum to Base bridge

Proven at scale

Five years of secure cross-chain infrastructure

2021

Live Since

Live Since

2021

50+

Chains

Chains

50+

58 sec

Avg bridge time

Avg bridge time

58 sec

$10B

Total volume

Total volume

$10B

CROSS-CHAIN GUIDE

How to bridge from Ethereum to Base

A real case from September 2026: a user bridged 1.3000 ETH (~$3,544) from Ethereum and received 1.2982 ETH on Base via Symbiosis — no wrapped tokens beyond the standard route, fully non-custodial. Symbiosis works as a liquidity meta-aggregator, comparing routes across multiple DEXes and bridge providers and picking the best one by price, fee, and speed automatically. This is one of the most popular flows on this corridor; the same widget supports any source chain and token combination. Here's the exact flow:

  1. Picked the source. Ethereum as source, Base as destination — the ETH sat in an Ethereum wallet and the goal was access to Base DeFi and Coinbase-native apps.

  2. Connected wallets. MetaMask on the Ethereum side, MetaMask on the Base side. Symbiosis resolved the destination address automatically from the connected wallet — no manual paste required.

  3. Entered the amount. 1.3000 ETH (~$3,544). The Ethereum wallet had enough balance to cover network gas.

  4. Reviewed the quote. Symbiosis displayed the exact ETH amount on Base, the flat Symbiosis fee in USD, and ETA. The quote was locked in before signing — 2% slippage tolerance protects against sudden price moves.

  5. Signed and confirmed. Signed the Ethereum transaction in MetaMask. ETH arrived in MetaMask within ~84 sec. The transaction is fixed on-chain — verifiable on Symbiosis Explorer, Etherscan, and BaseScan.

Ethereum to Base Bridge — live route in PRO mode: 1.3000 ETH (Ethereum) to 1.298 ETH (Base) · Symbiosis

About the Ethereum to Base route

  • Why this route. Base is the OP Stack layer 2 built by Coinbase, and ETH brought there from mainnet goes into Morpho lending vaults, Aerodrome liquidity and Uniswap trades.

  • What you receive. ETH on Base, which pays for gas on that network. You sign one transaction on Ethereum mainnet, and the ETH appears at the same 0x address on Base.

  • Watch out for. Base and OP Mainnet are both OP Stack chains that use ETH for gas, so confirm your wallet shows Base, chain ID 8453, and not chain 10. Keep enough ETH on mainnet for the gas of the sending transaction rather than moving the whole balance.

  • Speed. Median delivery 63 seconds; 90th percentile 84 seconds, over the 90 days to 25 September 2026.

ROUTE ESTIMATES

Estimated fees

Approximate fees and swap time based on historical averages, updated 3x/week. Actual values may vary.

Amount

Amount

Amount

Receive

Receive

Receive

Fee + Gas

Fee + Gas

Fee + Gas

Time

Time

Time

0.37 ETH

0.37 ETH

0.3692 ETH

0.3692 ETH

$2.95

$2.95

~63s

~63s

1.9 ETH

1.9 ETH

1.898 ETH

1.898 ETH

$6.37

$6.37

~63s

~63s

3.7 ETH

3.7 ETH

3.696 ETH

3.696 ETH

$11.10

$11.10

~63s

~63s

9.3 ETH

9.3 ETH

9.288 ETH

9.288 ETH

$31.35

$31.35

~63s

~63s

Ready to bridge? Live rates across
50+ networks. No signup, no KYC

Ready to bridge? Live rates across 50+ networks.
No signup, no KYC

Start a swap

Start a swap

Start a swap

Start a swap

Start a swap

Start a swap

Crypto coin logos on a green background

WHY SYMBIOSIS

Secure by design. Proven at scale

Audited in the open

No KYC, no custody, no intermediaries. Audited by Decurity, Zokyo, SlowMist, and Omniscia — 13 public audit reports across 11 protocol modules (Core, MetaRouter v3, Pool, TON Bridge v1+v2, Relayers Network, Staking, Frontend). All reports open-source on GitHub. 4+ years live on mainnet (since March 2022) with zero major security incidents. Active bug bounty program.

Two-layer staking security

Cross-chain transactions routed via Octopools AMM (scans liquidity across DEXs and chains for minimal slippage), then signed by an MPC group via Threshold Signature Scheme (TSS) — no single party can move user funds. Two security layers: Symbiosis PoS Staking (SIS-collateralised relayer nodes) + Symbiotic restaking (additional slash-able collateral). 2/3 stake quorum for epoch changes.

$8B+ across 54 chains

$8B+ total volume bridged across 5M+ transactions from 800K+ unique wallets. Supports 54 networks — more than any other cross-chain bridge (Across 35+, deBridge 30+, Allbridge 20). EVM + non-EVM in one route — Ethereum, Solana, BNB Chain, TON, Tron, Bitcoin, Arbitrum, Polygon, and 46 more. Per-transaction range: $10 to $140,000 — handles retail swaps and whale trades on the same route.

Got questions?

Still have questions? Contact us and we’ll help you out.

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01

How do I bridge ETH to Base?

Connect your wallet on the Symbiosis widget, select Ethereum as the source chain and Base as the destination, then choose ETH as the token you send and ETH as the token you receive. Enter the amount, confirm the quote, and approve the transaction in your wallet. The routing engine handles the rest, with a median delivery time of 63 seconds as of September 2026.

02

How long does it take to bridge from Ethereum to Base?

On the Symbiosis routing layer, the median delivery time is 63 seconds, and 90% of transfers complete within 84 seconds as of September 2026. Actual timing can vary with Ethereum network conditions.

03

How do I get ETH on Base?

Bridge from Ethereum to Base using the Symbiosis widget by selecting ETH as your token. Connect your wallet, set Ethereum as the source and Base as the destination, enter your amount, and confirm. Funds typically arrive in about 63 seconds as of September 2026.

04

What is the best bridge from Ethereum to Base?

Symbiosis is non-custodial, audited, and requires no KYC, so you keep control of your funds throughout the transfer. With a median delivery of 63 seconds as of September 2026, it balances speed and self-custody for this route.

05

How much does it cost to bridge ETH to Base?

On 28 September 2026, bridging 0.37 ETH from Ethereum to Base delivered 0.3692 ETH with a $2.95 fee, and 3.7 ETH delivered 3.696 ETH with an $11.10 fee. That fee is the full cost in the Symbiosis app plus source-network gas. The widget shows the exact fee for your amount before you sign.

06

Can I bridge ETH to Base with MetaMask?

Yes, connect MetaMask to the Symbiosis widget and select Ethereum as the source chain and Base as the destination. Pick your token, enter the amount, and approve the transaction directly in MetaMask. The bridge is non-custodial, so your assets are never held by a third party.

07

What is a Base bridge?

A Base bridge moves assets from another network onto Base, an Ethereum Layer 2 chain. On this page, Symbiosis routes ETH from Ethereum to Base in a non-custodial way.

08

Can I bridge ETH back from Base to Ethereum without waiting 7 days?

Yes — Symbiosis runs Base to Ethereum routes through liquidity pools, settling with a median time of 48 seconds as of September 2026 regardless of the OP Stack 7-day fraud-proof window. You pay protocol fee + destination gas but skip the week-long capital lock. Useful for active traders moving between L1 and L2 frequently.

Popular bridges

A few popular bridge routes

Two chains. One click

Bridge tokens from Ethereum into Base. Non-custodial single-click transfer for Base DeFi and Coinbase-native apps. Live quote above.

Open Ethereum to Base bridge

Open Ethereum to Base bridge

Open Ethereum to Base bridge

Open Ethereum to Base bridge

Open Ethereum to Base bridge

Open Ethereum to Base bridge

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