[**@acamarata/qibla v1.1.1**](../README.md)

***

[@acamarata/qibla](../README.md) / distanceKm

# Function: distanceKm()

> **distanceKm**(`lat1`, `lng1`, `lat2`, `lng2`): `number`

Defined in: [index.ts:142](https://github.com/acamarata/qibla/blob/a59756bd074a18a3c9cea4311d135cfb23a5ec7d/src/index.ts#L142)

Haversine distance between two coordinate pairs.

## Parameters

### lat1

`number`

First point latitude in decimal degrees.

### lng1

`number`

First point longitude in decimal degrees.

### lat2

`number`

Second point latitude in decimal degrees.

### lng2

`number`

Second point longitude in decimal degrees.

## Returns

`number`

Distance in kilometers (spherical Earth approximation).