---
title: "DocumentCalculator – API-Referenz · Quittio"
description: "Calculates documents with the invoice calculator. Optional and alternative lines get their line amounts but are excluded from the totals."
canonical_url: "https://quittio.dev/docs/api/Quittio/Core/Documents/DocumentCalculator"
locale: de
meta:
  "og:description": "Calculates documents with the invoice calculator. Optional and alternative lines get their line amounts but are excluded from the totals."
  "og:image": "https://quittio.dev/og/quittio-de.jpg"
  "og:image:alt": "Quittio: E-Rechnungen für PHP und Laravel. Rechtssicher, validiert, archiviert, mit geprüfter Beispielrechnung."
  "og:image:height": "630"
  "og:image:type": image/jpeg
  "og:image:width": "1200"
  "og:title": "DocumentCalculator – API-Referenz · Quittio"
  "twitter:image": "https://quittio.dev/og/quittio-de.jpg"
  "twitter:image:alt": "Quittio: E-Rechnungen für PHP und Laravel. Rechtssicher, validiert, archiviert, mit geprüfter Beispielrechnung."
---

> Index of every page on this site: [llms.txt](https://quittio.dev/llms.txt)

[API reference](https://quittio.dev/docs/api) / [Quittio](https://quittio.dev/docs/api/Quittio) \\ [Core](https://quittio.dev/docs/api/Quittio/Core) \\ [Documents](https://quittio.dev/docs/api/Quittio/Core/Documents)

# DocumentCalculator

final class in quittio/core

`Quittio\Core\Documents\DocumentCalculator` · [Source](https://github.com/Quittio/quittio/blob/v0.7.1/packages/core/src/Documents/DocumentCalculator.php#L14)

Calculates documents with the invoice calculator. Optional and alternative lines get their line amounts but are excluded from the totals.

## Methods \#

| Method | Description |
| --- | --- |
| `->__construct()` | |
| `->calculate()` | |

### `__construct()`#

```
public function __construct(
    TotalsCalculator $calculator = new \Quittio\Core\Calculation\En16931Calculator(),
)
```

| Parameter | Type | Description |
| --- | --- | --- |
| `$calculator` | `[TotalsCalculator](https://quittio.dev/docs/api/Quittio/Core/Calculation/TotalsCalculator)` = `new \Quittio\Core\Calculation\En16931Calculator()` | |

### `calculate()`#

```
public function calculate(DocumentData $document): DocumentData
```

| Parameter | Type | Description |
| --- | --- | --- |
| `$document` | `[DocumentData](https://quittio.dev/docs/api/Quittio/Core/Documents/DocumentData)` | |

<dl><dt>Returns</dt>
<dd><code><a href="https://quittio.dev/docs/api/Quittio/Core/Documents/DocumentData">DocumentData</a></code></dd>
</dl>

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