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eth_estimateGas RPC Method

Returns an estimation of gas for a given transaction.

Updated on
Aug 31, 2026

Parameters

transaction
object
REQUIRED

The transaction call object:

from
string

The address from which the transaction is sent

to
string
REQUIRED

The address to which the transaction is addressed

gas
string

The integer of gas provided for the transaction execution

gasPrice
string

The integer of gasPrice used for each paid gas encoded as hexadecimal

value
string

The integer of value sent with this transaction encoded as hexadecimal

data
string

The hash of the method signature and encoded parameters. For more information, see the Contract ABI description in the Solidity documentation.

blockNumber
string

Use 'pending' to execute against the most recent GIWA Flashblock. Other valid tags are 'latest', 'earliest', 'safe', and 'finalized'

Returns

quantity
string

The estimated amount of gas used

Request
Response
1
{
2
"jsonrpc": "2.0",
3
"result": "0x5208",
4
"id": 1
5
}
1
{
2
"jsonrpc": "2.0",
3
"result": "0x5208",
4
"id": 1
5
}
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