Ethereum Transaction Gas Calculator
Ethereum Transaction Gas Calculator. Estimate fees from entered gas inputs. Enter your values and view the result.
Ethereum Transaction Gas Calculator
Estimate fees from entered gas inputs.
Use the calculation engine below to model your exact costs with custom fuel prices, distances, and vehicle efficiencies:
Ethereum Transaction Gas Calculator: inputs
Adjust sliders or enter exact figures
Monthly Fuel Budget
Real-Time Visual Breakdown
Comparing your expense against alternative vehicle classes
Price Fluctuation Stress Test
See how unexpected gas price surges would impact your monthly budget
How Ethereum Transaction Gas Calculator Works
This tool works by multiplying the gas units a transaction uses by the gas price in gwei, converting the result into ether (ETH), and pricing it in fiat currency.
- Step 1
Enter gas units
Type the gas limit or gas used. A plain ETH transfer uses exactly 21,000 gas.
- Step 2
Enter the base fee and priority fee
Type the network base fee and the tip (priority fee) in gwei from a gas tracker or wallet.
- Step 3
Enter the ETH price
Type the ETH price in your currency.
- Step 4
Read the fee
The calculator shows the fee in gwei, ETH, and fiat.
Ethereum Transaction Gas Calculator Formula
The formula follows the Ethereum Improvement Proposal 1559 (EIP-1559) fee model.
Fee (gwei) = Gas Used × (Base Fee + Priority Fee)
Fee (ETH) = Fee (gwei) × 0.000000001
Fee (fiat) = Fee (ETH) × ETH Price
- Gas Used
- = computation units the transaction consumes
- Base Fee
- = protocol price per gas unit, burned by the network
- Priority Fee
- = tip per gas unit paid to the validator
- 1 gwei
- = 0.000000001 ETH (10⁻⁹ ETH)
Worked Example
- A user sends ETH (21,000 gas) with a 12 gwei base fee and a 2 gwei priority fee.
- Fee = 21,000 × 14 = 294,000 gwei.
- Fee in ETH = 294,000 × 10⁻⁹ = 0.000294 ETH.
- At an entered ETH price of $3,000, fee = $0.88.
Ethereum Transaction Gas Calculator Conversion Table
The table lists typical gas use by transaction type, with fees at 15 gwei total gas price and an entered ETH price of $3,000.
| Transaction Type | Typical Gas | Fee (gwei) | Fee (ETH) | Fee at $3,000 / ETH |
|---|---|---|---|---|
| ETH transfer | 21,000 | 315,000 | 0.000315 | $0.95 |
| ERC-20 token transfer | 55,000 | 825,000 | 0.000825 | $2.48 |
| Token approval | 46,000 | 690,000 | 0.000690 | $2.07 |
| Decentralized exchange (DEX) swap | 150,000 | 2,250,000 | 0.002250 | $6.75 |
| NFT mint | 120,000 | 1,800,000 | 0.001800 | $5.40 |
| Smart contract deployment | 1,200,000 | 18,000,000 | 0.018000 | $54.00 |
Gas use for tokens, swaps, and mints changes by contract. A plain ETH transfer is fixed at 21,000 gas.
What is an Ethereum Transaction Gas Calculator?
An Ethereum Transaction Gas Calculator is a blockchain fee tool that estimates Ethereum transaction fees from entered gas units, gas prices, and the ETH price.
"Gas" on Ethereum is not fuel. Gas measures the computation a transaction needs, and the gas price sets what each unit costs. The Ethereum Transaction Gas Calculator multiplies the 2 and converts the result from gwei to ETH to fiat currency.
Fees change block by block with network demand. The calculator prices the fee at the values entered, so users check a gas tracker before sending.
What are the uses of an Ethereum Transaction Gas Calculator?
There are 4 main uses of the Ethereum Transaction Gas Calculator, including pre-send fee checks, transaction timing, and fee budgeting.
Check fees before sending
Know the fiat cost before confirming in a wallet.
Time transactions
Compare fees at high and low gas prices.
Budget dApp usage
Price swaps, mints, and approvals in advance.
Explain fees
Show new users how gas units and gwei combine.