---
title: uint() function
description: >
  `uint()` converts a value to an unsigned integer type.
menu:
  flux_v0_ref:
    name: uint
    parent: universe
    identifier: universe/uint
weight: 101
flux/v0/tags: [type-conversions]
introduced: 0.7.0
---

<!------------------------------------------------------------------------------

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`uint()` converts a value to an unsigned integer type.

`uint()` behavior depends on the input data type:

| Input type | Returned value                                                  |
| :--------- | :-------------------------------------------------------------- |
| bool       | 1 (true) or 0 (false)                                           |
| duration   | Number of nanoseconds in the specified duration                 |
| float      | UInteger equivalent of the float value truncated at the decimal |
| int        | UInteger equivalent of the integer                              |
| string     | UInteger equivalent of the numeric string                       |
| time       | Equivalent nanosecond epoch timestamp                           |

##### Function type signature

```js
(v: A) => uint
```

{{% caption %}}
For more information, see [Function type signatures](/flux/v0/function-type-signatures/).
{{% /caption %}}

## Parameters

### v
({{< req >}})
Value to convert.




## Examples

- [Convert basic types to unsigned integers](#convert-basic-types-to-unsigned-integers)
- [Convert all values in a column to unsigned integers](#convert-all-values-in-a-column-to-unsigned-integers)

### Convert basic types to unsigned integers

```js
uint(v: "3")

// Returns 3
uint(v: 1m)

// Returns 160000000000
uint(v: 2022-01-01T00:00:00Z)

// Returns 1640995200000000000
uint(v: 10.12)

// Returns 10
uint(v: -100)// Returns 18446744073709551516


```


### Convert all values in a column to unsigned integers

If converting the `_value` column to uint types, use `toUInt()`.
If converting columns other than `_value`, use `map()` to iterate over each
row and `uint()` to convert a column value to a uint type.

```js
data
    |> map(fn: (r) => ({r with exampleCol: uint(v: r.exampleCol)}))

```

{{< expand-wrapper >}}
{{% expand "View example input and output" %}}

#### Input data

| _time                | exampleCol  | *tag |
| -------------------- | ----------- | ---- |
| 2021-01-01T00:00:00Z | -2          | t1   |
| 2021-01-01T00:00:10Z | 10          | t1   |
| 2021-01-01T00:00:20Z | 7           | t1   |
| 2021-01-01T00:00:30Z | 17          | t1   |
| 2021-01-01T00:00:40Z | 15          | t1   |
| 2021-01-01T00:00:50Z | 4           | t1   |

| _time                | exampleCol  | *tag |
| -------------------- | ----------- | ---- |
| 2021-01-01T00:00:00Z | 19          | t2   |
| 2021-01-01T00:00:10Z | 4           | t2   |
| 2021-01-01T00:00:20Z | -3          | t2   |
| 2021-01-01T00:00:30Z | 19          | t2   |
| 2021-01-01T00:00:40Z | 13          | t2   |
| 2021-01-01T00:00:50Z | 1           | t2   |


#### Output data

| _time                | exampleCol           | *tag |
| -------------------- | -------------------- | ---- |
| 2021-01-01T00:00:00Z | 18446744073709551614 | t1   |
| 2021-01-01T00:00:10Z | 10                   | t1   |
| 2021-01-01T00:00:20Z | 7                    | t1   |
| 2021-01-01T00:00:30Z | 17                   | t1   |
| 2021-01-01T00:00:40Z | 15                   | t1   |
| 2021-01-01T00:00:50Z | 4                    | t1   |

| _time                | exampleCol           | *tag |
| -------------------- | -------------------- | ---- |
| 2021-01-01T00:00:00Z | 19                   | t2   |
| 2021-01-01T00:00:10Z | 4                    | t2   |
| 2021-01-01T00:00:20Z | 18446744073709551613 | t2   |
| 2021-01-01T00:00:30Z | 19                   | t2   |
| 2021-01-01T00:00:40Z | 13                   | t2   |
| 2021-01-01T00:00:50Z | 1                    | t2   |

{{% /expand %}}
{{< /expand-wrapper >}}