Kaia gas fees, costs, and unit system. Use when asked about transaction costs, gas pricing, or KAIA denominations.
| Unit | Value | Equivalent |
|---|---|---|
| kei | 1 kei | Smallest unit (like wei) |
| Gkei | 10^9 kei | Like gwei — used for gas prices |
| KAIA | 10^18 kei | 1 KAIA |
"peb" and "ston" are deprecated Klaytn names. Use kei, Gkei, KAIA.
Kaia's gas pricing has evolved through multiple phases:
Current model: dynamic base fee + optional priority fee. Very similar to Ethereum EIP-1559 but with Kaia-specific parameters.
KAIA transfers use 21,000 gas (same as Ethereum).
At Kaia's low gas prices, a simple transfer costs fractions of a cent — orders of magnitude cheaper than Ethereum mainnet.
Verify current gas price: cast rpc eth_gasPrice --rpc-url https://public-en.node.kaia.io
Users can pay gas with ERC-20 tokens instead of KAIA. See gas-abstraction/SKILL.md.