# zks_estimateGasL1ToL2

> import Tabs from '@theme/Tabs'
import TabItem from '@theme/TabItem'

# `zks_estimateGasL1ToL2`

Returns an estimate of the gas required for a layer 1 (L1) to layer 2 (L2) transaction.

## Parameters

- `from`: [_Required_] Address from which the transaction is sent.
- `to`: [_Required_] Address to which the transaction is addressed.
- `data`: Data associated with the transaction.

## Response

The estimate of the gas required for a L1 to L2 transaction.

## Example

Replace `<YOUR-API-KEY>` with an API key from your [Infura dashboard](https://app.infura.io/).

### Request

<Tabs>
  <TabItem value="curl">

```bash
curl https://zksync-mainnet.infura.io/v3/<YOUR-API-KEY> \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0", "id":2, "method": "zks_estimateGasL1ToL2", "params": [ { "from": "0x1111111111111111111111111111111111111111", "to":"0x2222222222222222222222222222222222222222", "data": "0xffffffff" } ] }'
```

  </TabItem>
  <TabItem value="WSS">

```bash
wscat -c wss://zksync-mainnet.infura.io/ws/v3/<YOUR-API-KEY> -x '{"jsonrpc":"2.0", "id":2, "method": "zks_estimateGasL1ToL2", "params": [ { "from": "0x1111111111111111111111111111111111111111", "to":"0x2222222222222222222222222222222222222222", "data": "0xffffffff" } ] }'
```

  </TabItem>
</Tabs>

### Response

<Tabs>
  <TabItem value="JSON">

```json
{
  "jsonrpc": "2.0",
  "result": "0x25f64db",
  "id": 2
}
```

  </TabItem>
</Tabs>