> ## Documentation Index
> Fetch the complete documentation index at: https://voltaire.tevm.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# GasCosts

> Auto-generated API documentation

[**@tevm/voltaire**](index.mdx)

***

[@tevm/voltaire](index.mdx) / GasCosts

# GasCosts

Gas cost constants for EVM operations

Provides comprehensive gas cost constants for:

* EVM opcodes
* Transaction types
* Storage operations
* Block limits

## Variables

### BLOCK\_GAS\_LIMITS

> `const` **BLOCK\_GAS\_LIMITS**: `object`

Defined in: [src/primitives/GasCosts/constants.ts:113](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/GasCosts/constants.ts#L113)

Block gas limit constants

#### Type Declaration

##### MAINNET

> `readonly` **MAINNET**: `30000000n` = `30_000_000n`

Typical mainnet block gas limit (30M)

##### MINIMUM

> `readonly` **MINIMUM**: `5000n` = `5000n`

Minimum gas limit per EIP-1559

***

### GAS\_COSTS

> `const` **GAS\_COSTS**: `object`

Defined in: [src/primitives/GasCosts/constants.ts:9](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/GasCosts/constants.ts#L9)

Gas cost constants for EVM operations
Based on Yellow Paper Appendix G and various EIPs

#### Type Declaration

##### BALANCE

> `readonly` **BALANCE**: `2600n` = `2600n`

Cold BALANCE access (EIP-2929)

##### BASE

> `readonly` **BASE**: `2n` = `2n`

Base cost for most opcodes

##### BLOCKHASH

> `readonly` **BLOCKHASH**: `20n` = `20n`

BLOCKHASH opcode

##### CALL

> `readonly` **CALL**: `100n` = `100n`

Base gas for message call

##### CALL\_STIPEND

> `readonly` **CALL\_STIPEND**: `2300n` = `2300n`

Gas stipend provided to called contract when value > 0

##### CALL\_VALUE

> `readonly` **CALL\_VALUE**: `9000n` = `9000n`

Additional cost for non-zero value transfer

##### CALLDATA\_NONZERO

> `readonly` **CALLDATA\_NONZERO**: `16n` = `16n`

Non-zero byte in calldata

##### CALLDATA\_ZERO

> `readonly` **CALLDATA\_ZERO**: `4n` = `4n`

Zero byte in calldata (cheaper)

##### COLD\_ACCOUNT\_ACCESS

> `readonly` **COLD\_ACCOUNT\_ACCESS**: `2600n` = `2600n`

Cold account access cost (EIP-2929)

##### COPY

> `readonly` **COPY**: `3n` = `3n`

Memory/storage copy cost per word

##### CREATE

> `readonly` **CREATE**: `32000n` = `32000n`

Contract creation base cost

##### EXP

> `readonly` **EXP**: `10n` = `10n`

EXP base cost

##### EXP\_BYTE

> `readonly` **EXP\_BYTE**: `50n` = `50n`

EXP per byte cost

##### EXTCODECOPY

> `readonly` **EXTCODECOPY**: `2600n` = `2600n`

Cold EXTCODECOPY access (EIP-2929)

##### HIGH

> `readonly` **HIGH**: `10n` = `10n`

High cost operations

##### JUMPDEST

> `readonly` **JUMPDEST**: `1n` = `1n`

JUMPDEST cost

##### LOG

> `readonly` **LOG**: `375n` = `375n`

LOG0 base cost

##### LOG\_DATA

> `readonly` **LOG\_DATA**: `8n` = `8n`

Cost per byte of LOG data

##### LOG\_TOPIC

> `readonly` **LOG\_TOPIC**: `375n` = `375n`

Cost per LOG topic

##### LOW

> `readonly` **LOW**: `5n` = `5n`

Low cost operations (MUL, DIV, etc)

##### MEMORY

> `readonly` **MEMORY**: `3n` = `3n`

Memory expansion cost per word

##### MID

> `readonly` **MID**: `8n` = `8n`

Mid cost operations

##### SELFDESTRUCT

> `readonly` **SELFDESTRUCT**: `5000n` = `5000n`

SELFDESTRUCT cost (no refund post-London)

##### SHA3

> `readonly` **SHA3**: `30n` = `30n`

SHA3/KECCAK256 base cost

##### SHA3\_WORD

> `readonly` **SHA3\_WORD**: `6n` = `6n`

SHA3/KECCAK256 per word cost

##### SLOAD

> `readonly` **SLOAD**: `2100n` = `2100n`

Cold SLOAD cost (EIP-2929)

##### SLOAD\_WARM

> `readonly` **SLOAD\_WARM**: `100n` = `100n`

Cost of SLOAD from warm storage

##### SSTORE\_CLEAR

> `readonly` **SSTORE\_CLEAR**: `15000n` = `15000n`

SSTORE clear refund (pre-London: 15000, post-London: none)

##### SSTORE\_RESET

> `readonly` **SSTORE\_RESET**: `5000n` = `5000n`

SSTORE from non-zero to non-zero

##### SSTORE\_SET

> `readonly` **SSTORE\_SET**: `20000n` = `20000n`

SSTORE from zero to non-zero (most expensive)

##### TRANSACTION

> `readonly` **TRANSACTION**: `21000n` = `21000n`

Base transaction cost (21000 gas)

##### VERY\_LOW

> `readonly` **VERY\_LOW**: `3n` = `3n`

Very low cost operations (ADD, SUB, etc)

##### WARM\_STORAGE\_READ

> `readonly` **WARM\_STORAGE\_READ**: `100n` = `100n`

Warm storage access cost (EIP-2929)

#### See

* [https://ethereum.github.io/yellowpaper/paper.pdf](https://ethereum.github.io/yellowpaper/paper.pdf)
* EIP-2929 (Gas cost increases for state access)
* EIP-3529 (Refund reduction)

***

### TRANSACTION\_COSTS

> `const` **TRANSACTION\_COSTS**: `object`

Defined in: [src/primitives/GasCosts/constants.ts:124](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/GasCosts/constants.ts#L124)

Transaction type gas costs

#### Type Declaration

##### CONTRACT\_DEPLOY

> `readonly` **CONTRACT\_DEPLOY**: `32000n` = `32000n`

Contract deployment base

##### ERC20\_TRANSFER

> `readonly` **ERC20\_TRANSFER**: `65000n` = `65000n`

Typical ERC20 transfer cost

##### SIMPLE\_TRANSFER

> `readonly` **SIMPLE\_TRANSFER**: `21000n` = `21000n`

Minimum gas for simple ETH transfer

##### UNISWAP\_SWAP

> `readonly` **UNISWAP\_SWAP**: `150000n` = `150000n`

Typical Uniswap V2 swap cost