# Function: bodyMassKg()

[**lifecycle-kit**](https://jonbogaty.com/lifecycle-kit/api/readme/index.md)

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[lifecycle-kit](https://jonbogaty.com/lifecycle-kit/api/readme/index.md) / [chem](https://jonbogaty.com/lifecycle-kit/api/chem/readme/index.md) / bodyMassKg


# Function: bodyMassKg() {#function-bodymasskg}


> **bodyMassKg**(`state`): `number`

Defined in: [chem/metabolism.ts:317](https://github.com/jbcom/lifecycle-kit/blob/074e4e7b8038d3e2de9eb44c4b5b5aee0ef02b48/src/chem/metabolism.ts#L317)

Body mass in kilograms, for the scaling laws.


## Parameters {#parameters}



### state {#state}


[`MetabolicState`](https://jonbogaty.com/lifecycle-kit/api/chem/interfaces/metabolicstate/index.md)


## Returns {#returns}


`number`