# GEODIST

> Get distance between two members.

Use `GEODIST` to get the distance between two members of a geospatial index.

The unit defaults to meters and can be set to `m`, `km`, `ft`, or `mi`. The distance is a great-circle distance computed from the stored positions assuming the Earth is a sphere, so it carries the small error of the geohash encoding and, of course, says nothing about the distance actually travelled on roads. If either member is missing from the index the reply is null.

## Syntax

```redis
GEODIST <key> <member1> <member2> [m | km | ft | mi]
```

## Arguments

| Argument | Required | Repeatable | Description |
| --- | --- | --- | --- |
| `<key>` | Yes | No | Redis key targeted by the command. |
| `<member1>` | Yes | No | First member. |
| `<member2>` | Yes | No | Second member. |
| `(m \| km \| ft \| mi)` | No | No | Distance unit: `m` (meters), `km` (kilometers), `ft` (feet), or `mi` (miles). Defaults to `m` when omitted. |

## Important points

- The distance is always returned as a bulk string, in both RESP2 and RESP3. Client libraries commonly decode it to a language number.

## Response

The reply reports the result of the operation. Error replies have the same shape in RESP2 and RESP3 and are surfaced as exceptions by the SDKs below.

| Protocol | Reply |
| --- | --- |
| RESP2 | Null bulk string or null array or Bulk string |
| RESP3 | Null or Bulk string |

<Note>
  Client libraries often decode bulk strings, maps, sets, and numeric strings into language-native values. The table describes the Redis wire reply.
</Note>

## Examples

TCP examples use the TLS `REDIS_URL` from the Upstash console. REST examples use `UPSTASH_REDIS_REST_URL` and `UPSTASH_REDIS_REST_TOKEN`.

<AccordionGroup>

<Accordion title="Redis CLI" icon="terminal">

```bash
GEODIST my-key member1 member2
```

</Accordion>

<Accordion title="@upstash/redis" icon="node-js" iconType="brands">

```ts
import { Redis } from "@upstash/redis";

const redis = Redis.fromEnv();
const result = await redis.geodist("my-key", "member1", "member2");
console.log(result);
```

</Accordion>

<Accordion title="upstash_redis" icon="python" iconType="brands">

```python
from upstash_redis import Redis

redis = Redis.from_env()
result = redis.geodist("my-key", "member1", "member2")
print(result)
```

</Accordion>

<Accordion title="ioredis" icon="node-js" iconType="brands">

```ts
import Redis from "ioredis";

const redis = new Redis(process.env.REDIS_URL!);
const result = await redis.geodist("my-key", "member1", "member2");
console.log(result);
```

</Accordion>

<Accordion title="node-redis" icon="node-js" iconType="brands">

```ts
import { createClient } from "redis";

const client = await createClient({ url: process.env.REDIS_URL })
  .on("error", console.error)
  .connect();
const result = await client.geoDist("my-key", "member1", "member2");
console.log(result);
```

</Accordion>

<Accordion title="redis-py" icon="python" iconType="brands">

```python
import os
import redis

client = redis.from_url(os.environ["REDIS_URL"])
result = client.geodist("my-key", "member1", "member2")
print(result)
```

</Accordion>

<Accordion title="go-redis" icon="golang" iconType="brands">

```go
package main

import (
    "context"
    "fmt"
    "os"

    "github.com/redis/go-redis/v9"
)

func main() {
    opts, err := redis.ParseURL(os.Getenv("REDIS_URL"))
    if err != nil {
        panic(err)
    }
    client := redis.NewClient(opts)
    result, err := client.GeoDist(context.Background(), "my-key", "member1", "member2", "m").Result()
    if err != nil {
        panic(err)
    }
    fmt.Println(result)
}
```

</Accordion>

<Accordion title="jedis" icon="java" iconType="brands">

```java
import java.net.URI;

import redis.clients.jedis.Jedis;

try (Jedis jedis = new Jedis(new URI(System.getenv("REDIS_URL")))) {
  Object result = jedis.geodist("my-key", "member1", "member2");
  System.out.println(result);
}
```

</Accordion>

<Accordion title="redis-rs" icon="rust" iconType="brands">

```rust
use redis::geo::Unit;
use redis::TypedCommands;

fn main() -> redis::RedisResult<()> {
    let url = std::env::var("REDIS_URL").expect("REDIS_URL is not set");
    let client = redis::Client::open(url)?;
    let mut connection = client.get_connection()?;

    let result = connection.geo_dist("my-key", "member1", "member2", Unit::Meters)?;
    println!("{result:?}");
    Ok(())
}
```

</Accordion>

</AccordionGroup>