[Home](./index.md) > [bitburner](./bitburner.md) > [SkillsFormulas](./bitburner.skillsformulas.md) > [calculateExp](./bitburner.skillsformulas.calculateexp.md)
## SkillsFormulas.calculateExp() method
Calculate exp for skill level.
Signature:
```typescript
calculateExp(skill: number, skillMult?: number): number;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| skill | number | target skill level |
| skillMult | number | Multiplier for that skill, defaults to 1. |
Returns:
number
The calculated exp required.