Gas & Fees Calculators
6 live tools · updated August 2026
Fees are where returns quietly die. A gas spike can make a $50 swap cost $30, and a 0.75% ETF fee compounds into a serious haircut over a decade.
The Gas Fee Calculator turns gwei into dollars, and the Slippage tool shows what a thin order book does to a market order before you hit confirm.
All Gas & Fees tools
Gas Fee CalculatorGwei × gas × price, in dollars.Exchange Fee ComparatorThe same trade on different venues.Bridge ComparatorCross-chain transfer costs.DEX Slippage CalculatorWorst acceptable fill at your tolerance.ETF Fee CalculatorExpense ratio drag over the years.Lightning Fee CalculatorRouting fees in sats and percent.
FAQ
What is a gwei?
One billionth of an ETH. Gas prices are quoted in gwei, so total fee = gas used × gas price in gwei × ETH price ÷ 1,000,000,000.
Why did my swap execute at a worse price than shown?
Slippage. Your order consumed liquidity beyond the top of the book. Set a slippage limit and the calculator shows the worst fill you are accepting.