About the Ethereum Gas Fee Calculator
On Ethereum every action costs gas, and you pay for it in ether. The fee is the number of gas units used times the gas price, and the gas price is made of a base fee that the network sets and a tip for the validator. This calculator does that multiplication for you. Choose what you are doing, such as a simple ETH transfer at 21,000 gas or a token swap, type the base fee and the tip in gwei, and read the fee in ETH and gwei. Add a price for ether to see the fee in money. It also splits the fee into the burned part and the tip, as EIP-1559 does. You copy the base fee from your wallet or from a gas tracker, and nothing is looked up for you.
Updated October 2026
How to use the Ethereum Gas Fee Calculator
- 1Choose the action, or pick Other and type the gas units your wallet shows.
- 2Enter the base fee in gwei, and the priority fee (tip).
- 3Optionally enter a price for one ETH.
- 4Read the fee in ETH, the gas price, and the burned and tip parts.
- 5Press Copy result to keep the numbers.
Understanding gas
Gas measures work. Sending ether is simple and costs 21,000 gas. Moving a token costs more, because a contract must update two balances. A swap runs several contracts and costs more again. What changes over time is only the price of one unit of gas, and that price moves with demand for block space.
After EIP-1559 each block has a base fee that rises when blocks are more than half full and falls when they are less full. You add a tip on top. This makes fees easier to predict than the old auction, but a busy period, such as a popular token launch, can still send them up many times in minutes.
Ways to lower the cost
- Wait for a quiet hour. Weekends and late hours in the main time zones often have lower base fees.
- Lower the tip when you are not in a hurry. A tip of 1 to 2 gwei usually still gets you in.
- Batch actions when an app allows it, because each transaction pays a fixed 21,000 gas base.
- Use a layer 2 network for small amounts, since fees there are a fraction of the main network.
Handy neighbours
To switch the result between wei, gwei and ether, use the Ethereum Unit Converter. To see what a stake would earn over a year, open the Crypto Staking Rewards Calculator, and plan the size of a trade with the Crypto Position Size Calculator. The Percentage Calculator helps when you want the fee as a share of the amount you send.
Features
- Gas units times gas price, exactly
- Presets for transfers, token sends, swaps and deployments
- Base fee and tip handled separately, like EIP-1559
- Burned part and validator tip shown
- Fee in ETH, gwei and money
- Works offline in your browser
- Type any gas amount for other actions
Frequently asked questions
How is an Ethereum gas fee calculated?
Fee = gas units used x (base fee + priority fee). A simple ETH transfer uses 21,000 gas, so with a 20 gwei base fee and a 2 gwei tip it costs 21,000 x 22 gwei = 462,000 gwei, or 0.000462 ETH.
What is the difference between the base fee and the tip?
The base fee is set by the network from how full the last block was, and it is burned. The priority fee, or tip, goes to the validator and moves your transaction up the queue.
Where do I find the current base fee?
Your wallet shows an estimate when you confirm a transaction, and gas trackers list the current base fee in gwei. Type that number here.
How much gas does a token swap use?
It depends on the app and route. A simple swap often needs 100,000 to 200,000 gas, and a complex route more. The presets are only typical values. Your wallet shows the real limit.
Why did I pay less than my gas limit?
The gas limit is a ceiling. You pay only for the gas actually used, so the final fee is usually lower than a calculation using the limit.
Why is there a failed transaction fee?
A transaction that fails still used computing power, so the gas up to the failure is charged. Check the details before you confirm.
Does this work on other chains?
The formula is the same on many Ethereum-compatible chains, but the coin and units differ. Layer 2 networks also add a separate data fee, which this tool does not include.