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[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [HacknetServersFormulas](./bitburner.hacknetserversformulas.md) &gt; [hashUpgradeCost](./bitburner.hacknetserversformulas.hashupgradecost.md)

## HacknetServersFormulas.hashUpgradeCost() method

Calculate hash cost of an upgrade.

**Signature:**

```typescript
hashUpgradeCost(upgName: number, level: number): number;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  upgName | number | name of the upgrade |
|  level | number | level of the upgrade |

**Returns:**

number

The calculated hash cost.