[Home](./index.md) > [bitburner](./bitburner.md) > [HacknetServersFormulas](./bitburner.hacknetserversformulas.md) > [hashGainRate](./bitburner.hacknetserversformulas.hashgainrate.md) ## HacknetServersFormulas.hashGainRate() method Calculate hash gain rate. **Signature:** ```typescript hashGainRate(level: number, ramUsed: number, maxRam: number, cores: number, mult?: number): number; ``` ## Parameters

Parameter	Type	Description
level	number	level of the server.
ramUsed	number	ramUsed of the server.
maxRam	number	maxRam of the server.
cores	number	cores of the server.
mult	number	_(Optional)_ player production mult (default to 1)

**Returns:** number The calculated hash gain rate.