# \$1ceil
<a name="ceil"></a>

New from version 4.0

The `$ceil` operator in Amazon DocumentDB, as in MongoDB, rounds a number up to the nearest integer. This is useful when you need to perform mathematical operations on numeric fields and ensure the result is a whole number.

**Parameters**
+ `expression`: The numeric expression to round up.

## Example (MongoDB Shell)
<a name="ceil-examples"></a>

This example demonstrates how to use the `$ceil` operator to round up a numeric field.

**Create sample documents**

```
db.numbers.insertMany([
  { "_id": 1, "value": 3.14 },
  { "_id": 2, "value": -2.7 },
  { "_id": 3, "value": 0 }
])
```

**Query example**

```
db.numbers.aggregate([
  { $project: {
    "roundedUp": { $ceil: "$value" }
  }}
])
```

**Output**

```
{ "_id": 1, "roundedUp": 4 }
{ "_id": 2, "roundedUp": -2 }
{ "_id": 3, "roundedUp": 0 }
```

## Code examples
<a name="ceil-code"></a>

To view a code example for using the `$ceil` command, choose the tab for the language that you want to use:

------
#### [ Node.js ]

```
const { MongoClient } = require('mongodb');

async function example() {
  const client = await MongoClient.connect('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false');
  const db = client.db('test');
  const collection = db.collection('numbers');

  const result = await collection.aggregate([
    { $project: {
      "roundedUp": { $ceil: "$value" }
    }}
  ]).toArray();

  console.log(result);
  client.close();
}

example();
```

------
#### [ Python ]

```
from pymongo import MongoClient

def example():
    client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false')
    db = client.test
    collection = db.numbers

    result = list(collection.aggregate([
        { '$project': {
            "roundedUp": { '$ceil': "$value" }
        }}
    ]))

    print(result)
    client.close()

example()
```

------