eth_estimateGas - Ethereum RPC Method
Estimate gas required for transactions on Ethereum. Essential for optimizing transaction costs for DeFi protocols (60% market share), NFT marketplaces, DAOs, and enterprise dApps.
Estimates the gas necessary to execute a transaction on Ethereum.
Why Ethereum? Build on the world's leading smart contract platform with the largest developer ecosystem with battle-tested security, institutional adoption, and unmatched ecosystem with $166B+ TVL.
Use Cases
The eth_estimateGas method is essential for:
- Transaction preparation - Set appropriate gas limits
- Cost estimation - Calculate transaction costs before sending
- Error detection - Identify reverts before spending gas
- DeFi operations - Estimate costs for DeFi protocols (60% market share), NFT marketplaces, DAOs, and enterprise dApps
Code Examples
Error Handling
| Error Code | Message | Description |
|---|---|---|
| -32000 | Execution reverted | Transaction would fail |
| -32602 | Invalid params | Invalid transaction parameters |
Tip: If estimation fails, the transaction would likely revert if sent.
Related Methods
eth_gasPrice- Get current gas priceeth_sendRawTransaction- Send transaction
eth_getTransactionReceipt
Get transaction receipt with status and logs on Ethereum. Essential for verifying transaction execution for DeFi protocols (60% market share), NFT marketplaces, DAOs, and enterprise dApps.
eth_gasPrice
Get current gas price on Ethereum. Essential for transaction cost estimation for DeFi protocols (60% market share), NFT marketplaces, DAOs, and enterprise dApps.