The Problem
Every Solana account requires a minimum SOL balance to be rent-exempt. This minimum depends on the account's data size. When creating accounts programmatically, getting the rent calculation wrong means failed transactions or unexpected costs.
What It Is
MinRent is a minimum rent calculator for Solana. Enter an account data size and get back the exact minimum SOL balance required for rent exemption. Fast, accurate, no code required.
How Rent Works on Solana
Solana charges rent proportional to the storage space an account uses. To avoid paying rent continuously, accounts must maintain a "rent-exempt" balance — a one-time deposit calculated from their data size. The formula is: minimum balance = (128 + data_length) * LAMPORTS_PER_BYTE_YEAR * 2.
Who Needs This
Developers writing Solana programs who need to know how much SOL to fund accounts with. Anyone creating custom account structures. Anyone troubleshooting "insufficient funds for rent" errors.
Why I Built It
The rent calculation comes up constantly in Solana development. Every time you create an account, you need to know the minimum balance. MinRent is a bookmark-worthy tool that answers that question immediately.