I’m developing a solidity contract that needs to swap between ETH and Stable coins like USDC. I’m having trouble finding an appropriate, production ready, setting for sqrtPriceLimitX96. All documentation that I have found use 0 stating that for production it needs to be handled differently, without specifying how. Can someone help me on how to set this parameter appropriately for a production ready contract?

1 Answer 1


In typescript:

const priceToSqrtPrice = (price: number) => {
  const result = BigInt(Math.floor(Math.sqrt(price) * 2 ** 96))
  return result

Pass the human readable price and it will return the square root price.

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