Uniswap Swap Gas Fee: Live Cost of a Token Swap on Ethereum
Right now, to swap on Uniswap on Ethereum mainnet costs about $0.030 at the standard gas price of 0.081 gwei.
A token swap on Uniswap or a similar decentralized exchange runs the router contract, moves two tokens and updates the pool. A simple single-pool swap typically uses about 120,000 to 200,000 gas. Routes that hop through several pools, or that wrap and unwrap ETH, use more.
How the cost is calculated
Fee = gas used × gas price × ETH price. With the current standard price: 150,000 gas × 0.081 gwei = 0.00001214 ETH, which is $0.030 at $2,492 per ETH. Across the typical range of about 120,000 to 200,000 gas, the standard cost is between $0.024 and $0.040.
How to pay less
- Your first swap of a token also needs an approval transaction. See the token approval cost.
- A failed swap, for example from slippage set too tight, still costs gas. Set slippage sensibly.
- Aggregators can split a trade across pools in one transaction, which is often cheaper than several manual swaps.
- Check the cheapest hours to transact and avoid known demand spikes.
What it cost on recent days
Cost of this action at each day's average and peak standard gas price, using that day's average ETH price.
| Day | Avg gas | Cost at avg | Cost at peak |
|---|---|---|---|
| October 10, 2026 | 0.088 gwei | $0.033 | $0.052 |
| October 9, 2026 | 0.212 gwei | $0.079 | $0.462 |
| October 8, 2026 | 0.940 gwei | $0.355 | $4.63 |
| October 7, 2026 | 0.682 gwei | $0.265 | $2.29 |
| October 6, 2026 | 0.544 gwei | $0.221 | $1.81 |
| October 5, 2026 | 0.467 gwei | $0.190 | $1.41 |
| October 4, 2026 | 0.122 gwei | $0.050 | $0.379 |
Compare with other Ethereum actions
| Action | Typical gas | Standard cost |
|---|---|---|
| Send ETH | 21,000 | $0.0042 |
| Send USDT (ERC-20) | 63,000 | $0.013 |
| Send USDC (ERC-20) | 60,000 | $0.012 |
| Approve a token | 46,000 | $0.0093 |
| Swap on Uniswap | 150,000 | $0.030 |
| Mint an NFT | 120,000 | $0.024 |
| Transfer an NFT | 70,000 | $0.014 |
| Buy an NFT on a marketplace | 200,000 | $0.040 |
| Deposit into Aave | 220,000 | $0.044 |
| Wrap ETH into WETH | 46,000 | $0.0093 |
| Stake ETH with Lido | 85,000 | $0.017 |
| Bridge ETH to a layer-2 | 110,000 | $0.022 |
| Register an ENS name | 300,000 | $0.060 |
| Deploy a smart contract | 1,200,000 | $0.242 |
Frequently asked questions
How much does it cost to swap on Uniswap right now?
About $0.030 at the standard gas price of 0.081 gwei with ETH at $2,492, using a typical 150,000 gas.
How much gas does it use?
Typically about 120,000 to 200,000 gas. Exact usage depends on the contract and on whether new storage is written.
Why does the cost change during the day?
The gas price follows demand for Ethereum block space. Busy hours and market events push it up; quiet hours bring it down.