Klaytn native coin - KLAY

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KLAY
KLAY is the main internal transferable cryptocurrency of Klaytn and is used to pay transaction fees when creating or executing smart contracts or when transferring KLAY.
KLAY is a necessary element--a fuel--for operating the Klaytn distributed application platform. It is a form of payment made by the clients of the platform to the consensus nodes (CNs) executing the requested operations. To put it another way, KLAY is an incentive; it ensures that developers write high-quality applications (wasteful code costs more) and that the network remains healthy (CNs and RNs are compensated for the resources they contribute).
Units of KLAY
Klaytn uses the following unit system for KLAY.
peb is the smallest currency unit.
ston is an alias for Gpeb and introduced for convenience.
A KLAY is 10^18 peb.
Unit
peb value
peb
peb
1 peb
1
kpeb
10^3 peb
1,000
Mpeb
10^6 peb
1,000,000
Gpeb
10^9 peb
1,000,000,000
ston
10^9 peb
1,000,000,000
uKLAY
10^12 peb
1,000,000,000,000
mKLAY
10^15 peb
1,000,000,000,000,000
KLAY
10^18 peb
1,000,000,000,000,000,000
kKLAY
10^21 peb
1,000,000,000,000,000,000,000
MKLAY
10^24 peb
1,000,000,000,000,000,000,000,000
GKLAY
10^27 peb
1,000,000,000,000,000,000,000,000,000
TKLAY
10^30 peb
1,000,000,000,000,000,000,000,000,000,000
APIs Related to KLAY Units
klay.toPeb and klay.fromPeb are convenient APIs for converting between KLAY units.
$ ./klay attach data/dd/klay.ipc
...
> klay.fromPeb(25, "peb")
"25"
> klay.fromPeb(25, "Gpeb")
"0.000000025"
> klay.fromPeb(25, "ston")
"0.000000025"
> klay.fromPeb(25, "KLAY")
"0.000000000000000025"
> klay.toPeb(25, "peb")
"25"
> klay.toPeb(25, "ston")
"25000000000"
> klay.toPeb(25, "KLAY")
"25000000000000000000"
You can get the list of all units supported by klay.toPeb and klay.fromPeb by sending an invalid unit string such as the one below.
> klay.toPeb(1, "something-does-not-exist")
Error: This unit doesn't exist, please use one of the following units
"noKLAY": "0"
"peb": "1"
"kpeb": "1000"
"Mpeb": "1000000"
"Gpeb": "1000000000"
"ston": "1000000000"
"uKLAY": "1000000000000"
"mKLAY": "1000000000000000"
"KLAY": "1000000000000000000"
"kKLAY": "1000000000000000000000"
"MKLAY": "1000000000000000000000000"
"GKLAY": "1000000000000000000000000000"
"TKLAY": "1000000000000000000000000000000"
​
    at web3.js:2170:19
    at web3.js:2255:49
    at <anonymous>:1:1
Transaction Fees (Previous docs)
Token Economy
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KLAY
Units of KLAY