Gas Fee Calculator

Bottom line: this calculator estimates blockchain gas fees in native token and USD before you confirm a transaction. Choose a network and action type to compare transfer, swap, approval, NFT mint, and contract-call costs across Ethereum, BSC, Polygon, and Arbitrum.

Quick answer

Bottom line: this calculator estimates network fee in the native token and, if you want, in fiat. It is useful for comparing chains before you send a transaction.

Formula	Fee = gas limit x gas price / 1,000,000,000, then convert to fiat if you enter a token price.
Inputs	Gas limit, gas price, native token price, and chain preset.
Sources	Uses browser math plus chain fee assumptions and any native-token price you supply or fetch.
Limits	Real fees move with congestion, priority tips, and mempool conditions.

Multi-chain calculator Ethereum BSC Polygon Arbitrum

Ethereum

Best for the mainnet fee problem: higher cost, highest activity, and the clearest need to compare before sending.

BSC

Useful when users want a lower-cost EVM chain and still want a quick BNB-denominated estimate.

Polygon

Strong for low-fee transaction search intent, especially transfers and routine DeFi actions.

Arbitrum

Use the dedicated L2 page when the intent is cheaper EVM execution without mainnet-level fees.

Network

Action Type

Price (USD)

Gas Limit

Gas Price (Gwei)

How Gas Fees Work Across Networks

Gas fee estimates come from three inputs: gas limit, gas price in Gwei, and the current token price. The calculator turns that into a native coin cost and a USD estimate so you can compare networks before you submit a transaction.

Use the main calculator to compare Ethereum, BSC, Polygon, and other EVM networks side by side. If you want a chain-specific explanation, open the dedicated Ethereum gas fee calculator, BSC gas fee calculator, Polygon gas fee calculator, or Arbitrum gas fee calculator.

If you are farming protocol points or rumored airdrops, use the Crypto Airdrop Tracker to record gas, bridge, mint, and swap costs by wallet.

Gas Fee Formula and Common Gas Limits

The core formula is Fee in native token = Gas limit x Gas price in Gwei / 1,000,000,000. The USD estimate is the native-token fee multiplied by the current ETH, BNB, MATIC, or ARB-related network token price.

Gas price answers the question "how much per unit of work?" Gas limit answers "how much work might this transaction use?" A wallet's final estimate should take priority, but the ranges below are useful before you open a wallet.

Action	Typical gas limit	Search intent
Native transfer	21,000 gas	ETH, BNB, or MATIC transfer fee
Token transfer	50,000-80,000 gas	USDT, USDC, ERC-20, BEP-20 transfer cost
Token approval	45,000-70,000 gas	DEX approval before a swap
Swap or contract call	120,000-250,000+ gas	Uniswap, PancakeSwap, bridge, claim, mint

Network Fee Comparison: Ethereum vs BSC vs Polygon vs Arbitrum

Network	Best use case	Dedicated calculator
Ethereum	Mainnet DeFi, NFTs, and high-liquidity transactions where ETH gas can be expensive.	ETH gas calculator
BSC / BNB Chain	Lower-cost transfers, BEP-20 actions, approvals, and swaps paid in BNB.	BSC gas calculator
Polygon	Low-fee routine transfers and DeFi actions where MATIC fees are usually small.	Polygon gas calculator
Arbitrum	L2 Ethereum execution where fees are often lower than mainnet but still ETH-denominated.	Arbitrum gas calculator

Chain-Specific Gas Fee Pages

Ethereum Gas Fee Calculator

For ETH transfer, swap, NFT mint, and smart contract fee intent.

BSC Gas Fee Calculator

For BNB Chain transfer, swap, and contract gas fee search intent.

Polygon Gas Fee Calculator

For MATIC network transaction cost and Polygon gas price intent.

Arbitrum Gas Fee Calculator

For ETH-denominated L2 transfer and swap fee searches on Arbitrum.

Gas Fee Calculator FAQ

What is a crypto gas fee?

A crypto gas fee is the network fee paid to process a transfer, swap, NFT mint, approval, or smart contract call. On EVM networks, the estimate usually depends on gas limit, gas price in Gwei, and the native token price.

How is an Ethereum gas fee calculated?

A simple Ethereum gas estimate is gas limit multiplied by gas price in Gwei, divided by 1,000,000,000 to convert to ETH. For EIP-1559 transactions, wallets combine base fee and priority fee before showing the final gas price.

What is Gwei?

Gwei is a small unit used for gas prices on Ethereum and many EVM networks. One Gwei equals 0.000000001 of the native token, such as ETH on Ethereum or BNB on BNB Chain.

Why did my transaction fail but still charge gas?

A failed transaction can still consume gas because validators processed the attempted execution. If a smart contract reverts or the gas limit is too low, the state change fails, but the gas already used is still charged.

How can I reduce my gas fees?

You can reduce gas fees by comparing networks, using lower-cost L2s, avoiding congested periods, batching actions where possible, and checking whether a swap or bridge route adds extra contract calls.

Which network usually has the lowest gas fees?

Lower-cost networks such as BSC, Polygon, and Arbitrum often cost less than Ethereum mainnet for routine transfers and swaps, but the cheapest choice depends on token support, bridge costs, liquidity, and the exact contract action.