Swap USDT (Ethereum) to USDC (Optimism)
Compare the best routes to exchange USDT (Ethereum) for USDC (Optimism) across on-chain venues and exchangers. We aggregate indicative quotes from multiple providers so you can see the rate, fees, gas, ETA and price impact side by side. Quotes are indicative, not executable.
Live snapshot: 7 routes compared, best ≈ 999.623 USDC, fees from $0.00, ETA from 1 min.
| ProviderThe service that would execute your swap. Click the name to open its official site. | TypeOn-chain = the swap settles on the blockchain via a smart contract. Exchanger = an intermediary service swaps for you. | You getEstimated amount you receive after the provider's fees and spread. | RateExchange rate - how much of the received asset you get per 1 unit you send. | Fee / GasProvider fee / network gas. "-" or $0.00 means it's already included in the rate. | ETAEstimated time for the swap to complete. "-" means near-instant or not reported. | Price impactPrice impact - how much your amount moves the pool price. Lower is better. | SourceWhere the liquidity actually comes from. "via X" means the provider routes through X. |
|---|---|---|---|---|---|---|---|
RelayBest Save 1.9% | DEX | 999.62 | 0.99 | $0.24gas: $0.19 | ~2s | - | also: Rubic |
| DEX | 999.52 | 0.99 | $0.00 | - | - | - | |
| DEX | 998.76 | 0.99 | $0.00 | ~22s | -0.07% | - | |
| DEX | 998.76 | 0.99 | $0.00 | ~2s | - | - | |
| Exchanger | 990.8Min / Max: 40 - 2,999,999 | 0.99 | $0.00 | - | - | - | |
| Exchanger | 989.13Min / Max: 49.04 - 3,618,570 | 0.98 | $0.00 | - | - | - | |
| Exchanger | 981.01Min / Max: 3 - 14,645 | 0.98 | $0.00 | - | - | - |
About this transfer
Swapping USDT on Ethereum for USDC on Optimism combines two steps - a cross-chain bridge and an asset swap. USDT uses the ERC-20 standard on Ethereum; USDC uses the ERC-20 standard on Optimism. Routes aggregate bridges and exchangers to deliver USDC on the destination network, minus network, bridge and conversion fees.
Token details
USDT · Ethereum
- Network
- Ethereum
- Standard
- ERC-20
- Decimals
- 6
- Contract
- 0xdac17f958d2ee523a2206206994597c13d831ec7
USDC · Optimism
- Network
- Optimism
- Standard
- ERC-20
- Decimals
- 6
- Contract
- 0x0b2c639c533813f4aa9d7837caf62653d097ff85
Contract addresses come from aggregator data - always verify before sending funds.
- Ethereum: Layer-1 chain, moderate settlement, ERC-20 tokens.
- Optimism: Layer-2 rollup, fast settlement, ERC-20 tokens.
What is Tether?
Tether (USDT) is a cryptocurrency with a value meant to mirror the value of the U.S.
What is USDC?
USDC is a fully collateralized US dollar stablecoin.
How to swap USDT (Ethereum) to USDC (Optimism)
- Select USDT (Ethereum) as the asset you send and USDC (Optimism) as the asset you receive.
- Enter the amount of USDT (Ethereum) you want to exchange.
- Press “Build route” to compare live routes across on-chain venues and exchangers.
- Review the rate, fees, gas, ETA and price impact, then continue with the provider that fits you best.
Frequently asked questions
How do I swap USDT (Ethereum) to USDC (Optimism)?
Pick the USDT (Ethereum) and USDC (Optimism) assets, enter an amount and press “Build route”. EIDEX queries on-chain venues and exchangers and shows the best available routes with their rates, fees and ETA.
What is the best rate from USDT (Ethereum) to USDC (Optimism)?
The best rate depends on the amount, network fees and current liquidity. EIDEX ranks providers so the route with the highest output appears first - but quotes are indicative and change in real time.
Are the USDT (Ethereum) to USDC (Optimism) quotes executable on EIDEX?
No. Quotes shown here are indicative comparisons for information only. To execute a swap you complete it with the chosen provider, who applies their own final rate and terms.