WhatIsCrypto.info
BTC—ETH—BTC MAX SUPPLY21,000,000BTC MINED20,000,000+BLOCK REWARD3.125 BTCNEXT HALVING~2028BTC BLOCK TIME~10 MINETH BLOCK TIME12 SECETH TRANSFER21,000 GAS1 BTC100,000,000 SATS1 ETH1,000,000,000 GWEISTABLECOIN TARGET$1.00US CRYPTO FRAUD LOSSES 2025$11.4BCRYPTOS LISTED~17,400FIRST BLOCKJAN 3 2009

Network fee calculator

Turn gas and gwei, or sat/vB, into a fee you understand, in coins and dollars.

Gas amounts for tokens and swaps vary by contract; the presets are typical rough figures. This calculator doesn't fetch live fees.

The formulas

  • Ethereum: fee (ETH) = gas used × gas price (gwei) ÷ 1,000,000,000
  • Bitcoin: fee (sats) = size (vbytes) × fee rate (sat/vB); ÷ 100,000,000 for BTC

Why fees change: crypto transaction fees explained.

Questions

How much gas does an ETH transfer use?

Exactly 21,000 gas for a plain ETH transfer between ordinary accounts.

Why is my wallet's fee different?

Wallets add a tip and a safety margin, and gas prices change every block. Use the numbers your wallet shows.

Every result is worked out in your browser. Nothing you type is sent anywhere. Results are estimates for learning and planning, not financial or tax advice. Last reviewed October 26, 2026.