Ξ Ethereum

Block Number Converter

Convert Ethereum block numbers between decimal and hexadecimal formats. JSON-RPC methods like eth_getBlockByNumber require hex block numbers prefixed with 0x.

Decimal Block Number

Hex Block Number

Enter a block number

Famous Block Numbers

Block 1 — Genesis block + 1

12965000 — EIP-1559 activation

15537394 — The Merge