# Guide: V3 Pools and Positions

Use `SushiSwapV3Pool` and `Position` from `sushi/evm` for local SushiSwap V3 pool and position math.

These classes do not fetch pool state, tick data, or liquidity. You must supply current state from RPC, a subgraph, or your own indexer.

## Construct a pool

```ts twoslash
import { EvmToken, SushiSwapV3Pool } from 'sushi/evm'

const tokenA = new EvmToken({
  chainId: 1,
  address: '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48',
  symbol: 'USDC',
  name: 'USD Coin',
  decimals: 6,
})

const tokenB = new EvmToken({
  chainId: 1,
  address: '0x6B3595068778DD592e39A122f4f5a5cF09C90fE2',
  symbol: 'SUSHI',
  name: 'SushiToken',
  decimals: 18,
})

const pool = new SushiSwapV3Pool(
  tokenA,
  tokenB,
  3000,
  79228162514264337593543950336n,
  1_000_000n,
  0,
)

const price = pool.token0Price
```

## Required pool state

| Value | Meaning |
|---|---|
| `fee` | Pool fee amount. |
| `sqrtRatioX96` | Current square-root price in Q64.96 form. |
| `liquidity` | Current in-range liquidity. |
| `tickCurrent` | Current tick. |
| `ticks` | Optional tick data provider or initialized ticks. |

Some swap and position operations require tick data. Without tick data, only operations that do not cross initialized ticks are available.

See [V3 Pool Reference](/sdk/reference/evm/pool-v3).