SPL supply calculator
Convert between human-readable supply and raw base units. If you've ever typed 1,000,000,000 expecting one billion tokens and got one lamport of a token, this fixes that.
Direction
Human supply
1000000000
Raw base units (what the mint sees)
1000000000000000000
Rule: raw = human × 10^decimals. Solana's default is 9 decimals, so a supply of 1B ends up as 1,000,000,000,000,000,000 raw units. Double-check before you sign a mint transaction.
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How-to guide
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