bitburner-src/markdown/bitburner.bladeburner.getskillupgradecost.md

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[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [Bladeburner](./bitburner.bladeburner.md) &gt; [getSkillUpgradeCost](./bitburner.bladeburner.getskillupgradecost.md)
## Bladeburner.getSkillUpgradeCost() method
Get cost to upgrade skill.
**Signature:**
```typescript
getSkillUpgradeCost(skillName: string, count?: number): number;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| skillName | string | Name of skill. Case-sensitive and must be an exact match. |
| count | number | _(Optional)_ Number of times to upgrade the skill. Defaults to 1 if not specified. |
**Returns:**
number
Number of skill points needed to upgrade the specified skill.
## Remarks
RAM cost: 4 GB
This function returns the number of skill points needed to upgrade the specified skill the specified number of times.
The function returns -1 if an invalid skill name is passed in, and Infinity if the count overflows the maximum level.