ETH

Wei:

• Definition: Wei is the smallest unit of cryptocurrency in the Ethereum network. It's similar to how a cent is to a dollar.
• Value: 1 Ether (ETH) = 10^18 Wei.

Gwei

• Definition: A larger unit of Ether commonly used in the context of gas prices.
• Conversion: 1 Ether = 10^9 gwei

Lamports

• In the Solana blockchain, the smallest unit of currency is called a lamport. Just as wei is to Ether in Ethereum, lamports are to SOL (the native token of Solana).
• 1 SOL = 10 ^ 9 Lamports

const { LAMPORTS_PER_SOL } = require("@solana/web3.js")

console.log(LAMPORTS_PER_SOL)