Blockchain fee unit calculator

About this tool

How do I use this tool?

Estimate Bitcoin or Ethereum transaction fees from manually entered size and fee rates.

What should I check before using the result?

Manual estimates only; no live network query or inclusion promise. Ethereum uses gas units times total Gwei per gas, excluding blob fees and layer-2 extras. Bitcoin uses virtual bytes times sat/vB and rounds up to a whole satoshi. Coin price is entered manually.

Worked example

21000 gas at 10 Gwei per gas costs 0.00021 ETH. A 140 vB Bitcoin transaction at 10 sat/vB costs 1400 satoshis, or 0.000014 BTC.

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