ETH Gas Fee Calculator

Calculator Form

Transaction profile

Gas units per transaction

Base fee per gas, gwei

Priority fee per gas, gwei

Max fee per gas, gwei

ETH price in USD

Transaction count

Gas buffer percentage

Transaction value in ETH

Reset

Example Data Table

Action	Gas Units	Base Fee	Priority Fee	Effective Price	Fee ETH	Fee USD
ETH transfer	21,000	30 gwei	2 gwei	32 gwei	0.000672	$2.02 at $3,000 ETH
ERC-20 transfer	65,000	30 gwei	2 gwei	32 gwei	0.002080	$6.24 at $3,000 ETH
DEX swap	150,000	30 gwei	3 gwei	33 gwei	0.004950	$14.85 at $3,000 ETH

Formula Used

Total gas units = gas units per transaction × transaction count.
Base plus tip = base fee + priority fee.
Effective gas price = minimum of max fee and base plus tip.
Network fee in ETH = total gas units × effective gas price ÷ 1,000,000,000.
Base fee burned = total gas units × base fee ÷ 1,000,000,000.
Validator tip = total gas units × effective priority fee ÷ 1,000,000,000.
Fee in USD = network fee in ETH × ETH price.
Fee percentage = network fee in ETH ÷ transaction value × 100.

How To Use This Calculator

Select a transaction profile or enter custom gas units.
Enter the current base fee from your wallet or explorer.
Add the priority fee you plan to pay.
Enter a max fee cap for EIP-1559 style planning.
Add the ETH market price for currency conversion.
Use transaction count for batches or repeated actions.
Add a gas buffer when estimating contract interactions.
Press Calculate Fee and review the report above the form.

Understanding ETH Gas Fees

Ethereum uses gas to measure work. Every transfer, swap, mint, or contract call spends gas. Gas protects the network from waste. It also pays validators for processing transactions. A fee has two main parts. The base fee is set by network demand. It is burned after the transaction. The priority fee is a tip. It rewards validators for faster inclusion. Users may also set a max fee. That value limits the highest price per gas unit.

Why This Calculator Helps

Gas prices move often. A wallet quote can change before you approve. This calculator lets you test several assumptions. You can enter gas limit, base fee, priority fee, max fee, ETH price, and transaction count. It then estimates the effective gas price. It also separates burned ETH from validator tips. These details help you compare normal transfers with contract actions.

Reading the Results

The gas limit is the maximum work allowed. A simple ETH transfer often uses 21,000 gas. Token transfers and swaps usually require more. The calculator multiplies gas units by the effective gas price. It converts gwei into ETH. Then it multiplies the ETH fee by the selected market price. When a max fee is entered, the tool also shows the maximum possible cost. The difference between maximum cost and estimated cost is a possible unused allowance.

Better Fee Planning

Use fresh fee data from your wallet or block explorer. Enter a higher max fee during busy periods. Keep the priority fee reasonable. Very low tips may delay confirmation. Very high tips can waste funds. For contract actions, add a buffer to the gas limit. Failed transactions can still consume gas. Always review wallet prompts before signing. This page is for estimation only. It does not send transactions. It does not connect to a wallet. It helps you make clearer choices before spending network fees.

Common Use Cases

The tool works for regular transfers. It also supports token moves, NFT mints, approvals, swaps, bridges, and batches. Enter the gas limit shown by your wallet. Use transaction count for repeated actions. The percentage output shows how large the fee is compared with the value sent. This is useful when moving small balances or testing.

FAQs

What is gas on Ethereum?

Gas is the unit used to measure network work. Simple transfers use less gas. Contract actions usually use more because they perform extra steps.

What is the base fee?

The base fee is the required network fee per gas unit. It changes with demand and is burned after a confirmed transaction.

What is the priority fee?

The priority fee is a tip paid to validators. A higher tip may help faster inclusion, but it can also increase your total cost.

What does max fee mean?

Max fee is the highest price per gas unit you allow. The actual fee can be lower when base fee and tip are below the cap.

Why is my wallet fee different?

Wallets may use live network estimates, different gas limits, and changing fee data. This calculator gives an estimate from your entered values.

Can a failed transaction cost gas?

Yes. A failed transaction can still consume gas because validators processed it. Always check contract details before approving risky actions.

What gas limit should I use?

Use the gas limit shown by your wallet for best accuracy. The example profiles are only planning references for common transaction types.

Does this page send transactions?

No. It only estimates fees from typed values. It does not connect to wallets, sign messages, or broadcast transactions.