---
title: "Field of View calculator — AperiOptic"
description: "Angular and linear FoV from sensor and focal length. Free online optics calculator, with the formula and code snippets."
url: "https://aperioptic.com/calculators/field-of-view"
---

# Field of View calculator

Angular and linear FoV from sensor and focal length.

Category: [Imaging](https://aperioptic.com/calculators)

Formula: `FoV = 2·atan(d / 2f)`

## Inputs

| Input | Parameter | Unit | Default |
| --- | --- | --- | --- |
| Sensor dim | `d` | mm | 36 |
| Focal length | `f` | mm | 50 |
| Distance | `u` | m | 10 |

## Result with the default inputs

- Angular FoV: 39.5978 °
- Linear FoV: 7.2 m

Open it with your own values: put each input in the address as a parameter, for example [`/calculators/field-of-view?d=36`](https://aperioptic.com/calculators/field-of-view?d=36). A unit other than the listed one goes in `<parameter>_unit`.

Read more: [Wikipedia: Field of view](https://en.wikipedia.org/wiki/Field_of_view)

[All optics calculators](https://aperioptic.com/calculators)

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The interactive page: https://aperioptic.com/calculators/field-of-view (AperiOptic runs in the browser; free, no account). Every page of the site as Markdown: https://aperioptic.com/llms.txt