Products

Dev Portal

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Bridge and Routes

Resources

Swap

Products

Dev Portal

MCP Server

Bridge and Routes

Resources

Swap

Bridge BNB to CRO

Convert BNB to CRO on Cronos via Symbiosis — non-custodial, no sign-ups, low fees. Access Cronos DeFi, NFTs, and the Crypto.com ecosystem directly.

Bridge BNB to CRO Now

Numbers

Proven performance

+ chains

Supported Networks

+ chains

Supported Networks

years

On the Market

years

On the Market

sec

Average Bridge Time

sec

Average Bridge Time

exploits

Since Launch

exploits

Since Launch

How to Bridge BNB to CRO

Connect an EVM wallet. Connect MetaMask, Trust Wallet, or Crypto.com Onchain. Both BNB Smart Chain and Cronos Mainnet use 0x-style EVM accounts, so your destination can be the same wallet address you already control.
Choose BNB Smart Chain and BEP-20 BNB. Set BNB Smart Chain as the source network and select BNB. This is BEP-20 BNB, not legacy BEP-2 on Binance Beacon Chain, which was sunset in 2024.
Choose Cronos Mainnet and native CRO. Set Cronos Mainnet (chain ID 25) as the destination and CRO as the output asset. This is not Cronos zkEVM (chain ID 388), which uses zkCRO as gas.
Review route details and destination address. Check the estimated CRO output, route fee, BNB gas cost, and confirm your destination wallet address. Verify the labels show BNB Smart Chain to Cronos Mainnet.
Confirm and use CRO on Cronos. Approve the transaction in your wallet and wait for CRO to arrive. Use CRO to pay Cronos gas fees and access DeFi protocols like VVS Finance, Tectonic, or MM Finance.

About BNB to Cronos route

This route moves BEP-20 BNB from BNB Smart Chain to native CRO on Cronos Mainnet (chain ID 25). Both networks are EVM-compatible, so your same 0x wallet address works on both sides—a useful verification when checking the destination. If you need to move BNB to other EVM chains, you can also explore bridging BNB to Polygon through a similar process.

MetaMask users may need to add Cronos manually: RPC https://evm.cronos.org, chain ID 25, symbol CRO. One BNB typically maps to thousands of CRO under live market conditions. For details on how Symbiosis enabled this route, see our Cronos EVM bridge announcement. Note that receiving CRO on Cronos Mainnet is a chain transaction—it does not credit a Crypto.com App or Exchange account directly.

Fees

Estimated fees

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

Amount

Receive

Fee + Gas

Time

1 BNB

9,151.04 CRO

~$2.84

~18 sec

5 BNB

45,713.51 CRO

~$16.41

~30 sec

10 BNB

91,280.96 CRO

~$0.50

~1 Min

50 BNB

453,319.73 CRO

—

~2 min 45 sec

~1 Min

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Check your own quote

Above are averages — enter your amount below for a live quote with exact fees, route preview, and one-click bridge.

Benefits

Why Symbiosis

Best route aggregation

Symbiosis scans liquidity across multiple DEXs and chains via Octopools AMM, finding the optimal path for your bridge with minimal slippage.

Best route aggregation

Symbiosis scans liquidity across multiple DEXs and chains via Octopools AMM, finding the optimal path for your bridge with minimal slippage.

Best route aggregation

Symbiosis scans liquidity across multiple DEXs and chains via Octopools AMM, finding the optimal path for your bridge with minimal slippage.

Non-custodial & secure

Your assets stay in your wallet until the bridge executes. No custody, no KYC, no intermediaries. Audited smart contracts with an active bug bounty program.

Non-custodial & secure

Your assets stay in your wallet until the bridge executes. No custody, no KYC, no intermediaries. Audited smart contracts with an active bug bounty program.

Non-custodial & secure

Your assets stay in your wallet until the bridge executes. No custody, no KYC, no intermediaries. Audited smart contracts with an active bug bounty program.

Cross-VM coverage

Bridge across Ethereum, BNB Chain, Solana, Arbitrum, Polygon, TON, Tron, Bitcoin and 50+ more — both EVM and non-EVM chains in one route.

Cross-VM coverage

Bridge across Ethereum, BNB Chain, Solana, Arbitrum, Polygon, TON, Tron, Bitcoin and 50+ more — both EVM and non-EVM chains in one route.

Cross-VM coverage

Bridge across Ethereum, BNB Chain, Solana, Arbitrum, Polygon, TON, Tron, Bitcoin and 50+ more — both EVM and non-EVM chains in one route.

FAQs

Got questions?

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What are the fees for bridging BNB to Cronos?

When you bridge BNB to Cronos through Symbiosis, you pay a transparent protocol fee plus network gas on both BNB Smart Chain and Cronos. BSC gas typically costs a few cents, while Cronos gas remains comparably low due to the network's efficiency. The interface displays your exact CRO output before confirmation — no hidden charges or withdrawal fees. For most transfer sizes, total bridging costs undercut centralized exchange routes where you'd face deposit fees, trading spreads, and withdrawal charges stacking across multiple conversion steps.

Is it safe to bridge BNB to Cronos via Symbiosis?

Symbiosis operates as a fully non-custodial cross-chain protocol — your funds never sit in a centralized wallet controlled by any third party. The architecture combines audited on-chain smart contracts with an off-chain relayer node network that validates cross-chain messages. You sign transactions directly from your own wallet and retain custody throughout the entire bridging process. This differs fundamentally from centralized exchanges where you must deposit funds into the platform's control before converting BNB to CRO.

How do I bridge BNB to Cronos step by step?

Connect your wallet (MetaMask, Rabby, or any EVM-compatible wallet) to Symbiosis. Select BNB on BNB Smart Chain as your source and CRO on Cronos as your destination. Enter the amount, review the quoted output and fees, then confirm the transaction in your wallet. The protocol handles routing automatically through its Octopools AMM — no manual token wrapping or intermediate steps required. For Cronos network setup in MetaMask: add RPC https://evm.cronos.org, Chain ID 25, symbol CRO.

How long does a BNB to Cronos bridge transfer take?

Most BNB to Cronos transfers complete within minutes, depending on current network conditions on both chains. BNB Smart Chain typically confirms blocks every three seconds, while Cronos processes similarly fast. The Symbiosis relayer network picks up your transaction after source-chain confirmation and triggers the destination release. You can track progress in real-time through the on-chain explorer. Network congestion on either chain may extend completion time, but the protocol provides status updates throughout.

Why use Symbiosis instead of the official Cronos Bridge for BNB transfers?

The official Cronos Bridge does not support BNB Smart Chain — it only handles transfers between Cronos and Cosmos IBC chains like Cronos POS Chain. If you hold BNB on BSC and want CRO on Cronos, you need an independent cross-chain protocol like Symbiosis. This makes Symbiosis one of the few non-custodial options for the BNB to Cronos route. The alternative would involve depositing to a centralized exchange, converting through multiple trading pairs, then withdrawing — significantly more steps and fees.

Is this bridge for BEP-2 or BEP-20 tokens?

Symbiosis bridges BEP-20 tokens on BNB Smart Chain (BSC) — not BEP-2 tokens from the legacy Binance Beacon Chain. The Binance Beacon Chain was officially sunset in 2024, so BEP-2 assets no longer exist in active circulation. If you're searching for a BEP-2 CRO bridge, that token standard is discontinued. Current BNB holdings on BSC use the BEP-20 standard, which this crobridge fully supports for transfers to Cronos mainnet.

What is a BNB to Cronos bridge?

A BNB to Cronos bridge is a cross-chain protocol that moves value from BNB Smart Chain to Cronos without requiring a centralized exchange intermediary. The bridge accepts BNB on the source chain and releases equivalent CRO on Cronos mainnet. Symbiosis executes this as a single transaction through its Octopools AMM architecture, automatically routing through optimal liquidity paths. You maintain wallet custody throughout — no third party holds your assets during the cross-chain transfer process.

What is the difference between Cronos Mainnet and Cronos zkEVM?

Cronos Mainnet (Chain ID 25) is the primary EVM-compatible chain where CRO serves as the native gas token — this is where your bridged assets land. Cronos zkEVM (Chain ID 388) is a separate ZK-rollup layer with its own native token zkCRO. The two networks are completely distinct and not directly interoperable. When bridging BNB to CRO via Symbiosis, you receive CRO on Cronos Mainnet specifically. If you're exploring other Layer 2 destinations, moving BNB to Base offers another EVM-compatible option. Verify your wallet connects to the correct network before initiating any bridge transaction.