> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dynamic.xyz/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Estimate Gas

Before sending a transaction, you can use the public client to estimate the gas
fees. Some chains also support custom gas estimation methods.

Here are examples of how to get a gas estimate using viem:

## Estimate Gas Function

<Tabs>
  <Tab title="General">
    ```tsx theme={"system"}
    import { mainnet } from 'viem/chains';
    import { toHex, parseEther } from 'viem';
    import { dynamicClient } from './dynamicClient';

    const estimateGas = async () => {
      const publicClient = await dynamicClient.viem.createPublicClient({
        chain: mainnet,
      });

      const estimate = await publicClient.estimateGas({
        from: dynamicClient.wallets.primary.address as `0x${string}`,
        to: '0x123' as `0x${string}`,
        value: toHex(parseEther('0.001')),
      })

      console.log(estimate);
    }
    ```
  </Tab>

  <Tab title="Linea">
    ```tsx theme={"system"}
    import { linea } from 'viem/chains';
    import { toHex, parseEther } from 'viem';
    import { dynamicClient } from './dynamicClient';

    const estimateGas = async () => {
      const publicClient = await dynamicClient.viem.createPublicClient({
        chain: linea,
      });

      const estimate = await publicClient.estimateGas({
        from: dynamicClient.wallets.primary.address as `0x${string}`,
        to: '0x123' as `0x${string}`,
        value: toHex(parseEther('0.001')),
      })

      console.log(estimate);
    }
    ```
  </Tab>
</Tabs>