[Home](./index.md) > [bitburner](./bitburner.md) > [Bladeburner](./bitburner.bladeburner.md) > [getSkillUpgradeCost](./bitburner.bladeburner.getskillupgradecost.md) ## Bladeburner.getSkillUpgradeCost() method Get cost to upgrade skill. **Signature:** ```typescript getSkillUpgradeCost(skillName: BladeburnerSkillName | `${BladeburnerSkillName}`, count?: number): number; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | skillName | [BladeburnerSkillName](./bitburner.bladeburnerskillname.md) \| \`${[BladeburnerSkillName](./bitburner.bladeburnerskillname.md)}\` | 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 Infinity if the sum of the current level and count exceeds the maximum level.