Linea batches users' transactions and submits them to Ethereum, paying a share of the transaction fees to Ethereum validators (expense).

Linea is an L2 smart contract platform for decentralized applications on Ethereum. Linea was founded by the ConsenSys team and launched in 2023.

ConsenSys team owns and governs the protocol. ConsenSys's investors include ParaFi Capital, Microsoft, Coinbase Ventures, etc.

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Linea

# Linea Median transaction fee Methodology

## 1. Overview

The Linea transaction fee median metric measures the daily median transaction fee paid by users on the Linea blockchain, expressed in USD. This metric provides insight into typical transaction costs on the network and helps assess network accessibility and usage patterns. The calculation processes all transactions on a given day, computes the gas fee for each transaction in ETH, finds the median value, and converts to USD using end-of-day price feeds.

## 2. Data sources

- **Linea blockchain transaction records**: Raw transaction data including gas usage, gas prices, timestamps, transaction hashes, and address information
- **End-of-day ETH price feeds**: Historical ETH-to-USD price data used for currency conversion
- **Token metadata**: ETH token information for Linea chain including the token address (`0xe5d7c2a44ffddf6b295a15c148167daaaf5cf34f`) and symbol

## 3. Step-by-step calculation

### Component A: Raw transaction data extraction
- **Purpose**: Extract and standardize transaction data from the Linea blockchain
- **Logic**: Retrieves all transaction records from Linea blockchain data including `block_timestamp`, `transaction_hash`, `from_address`, `to_address`, `receipt_gas_used` (gas consumed by transaction), and `receipt_effective_gas_price` (actual gas price paid). Assigns the hardcoded ETH token address and symbol for Linea chain consistency.
- **Key fields**: `gas_used` (gas units consumed), `gas_price` (price per gas unit in wei), `block_timestamp` (transaction timing), `token_address` (ETH identifier)

### Component B: Transaction fee calculation and median aggregation
- **Purpose**: Calculate individual transaction fees and compute daily median values
- **Logic**: For each transaction, calculates the total fee by multiplying `gas_used` by `gas_price` and dividing by 1e18 to convert from wei to ETH units. Handles null values by defaulting to zero. Groups all transactions by day using daily timestamp truncation. Calculates the median fee per day using approximate quantiles function with 100 buckets, selecting the 50th percentile (median value).
- **Key fields**: `fee_amount` (calculated ETH fee per transaction), `timestamp` (daily boundary), `transaction_fee_median` (daily median fee in ETH)

### Component C: Currency conversion and final formatting
- **Purpose**: Convert ETH fees to USD and apply standard metric formatting
- **Logic**: Applies USD conversion using end-of-day ETH price feeds through the `convert_to_usd_and_correct_decimals` macro. Sets decimal correction to false since fees are already in proper ETH units. Adds standardized metric metadata including chain identifier 'linea', daily timestamp grain, and null product identifier.
- **Key fields**: `transaction_fee_median` (converted to USD), `chain_id` ('linea'), `timestamp_grain` ('day')

### Final aggregation
- **Combining components**: The three components flow sequentially - raw transaction data feeds into fee calculation, which feeds into USD conversion and formatting
- **Currency conversion**: Uses end-of-day ETH price feeds to convert median ETH fees to USD values
- **Time aggregation**: Daily boundaries are established using timestamp truncation to day level, ensuring all transactions within a 24-hour period are grouped together
- **Final calculation**: The metric value represents the USD equivalent of the median transaction fee (gas_used × gas_price ÷ 1e18) across all transactions on a given day on the Linea network

*This methodology was automatically generated by Token Terminal's methodology analyzer.*

LineaLINEA

Median transaction fee

Median transaction fee

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