Horizontal field of view · Local Calculator

Camera Field of View Calculator

Camera Field of View Calculator calculates horizontal field of view from the supplied parameters, with live validation, a readable formula note, and local browser processing.

No uploadsMobile friendlyTheme aware

How Camera Field of View Calculator works

Camera Field of View Calculator calculates horizontal field of view from the supplied parameters, with live validation, a readable formula note, and local browser processing.

Calculation model

Calculates rectilinear horizontal FOV from sensor width and focal length.

Recommended workflow

  1. Confirm every field uses the displayed unit.
  2. Adjust the example values and review the live result and input summary.
  3. Copy the result, then document assumptions and verify requirements before use.

Use cases

Use it for planning, comparison, documentation, and quick checks involving sensor width, focal length.

Limits and verification

The calculation follows this stated model: Calculates rectilinear horizontal FOV from sensor width and focal length. Real projects may require additional coefficients, tolerances, taxes, codes, or professional review.

Frequently Asked Questions

Does Camera Field of View Calculator upload my values?
No. The calculation runs in the current browser tab and ToolHub does not receive or store the values you enter.
What does Camera Field of View Calculator calculate?
Horizontal field of view from sensor width, focal length.
Can I use the result in a real project?
The calculation follows this stated model: Calculates rectilinear horizontal FOV from sensor width and focal length. Real projects may require additional coefficients, tolerances, taxes, codes, or professional review.
Does it work on phones?
Yes. The input and result workspace adapts to mobile, tablet, and desktop screens.
Why can my result differ from another source?
Differences usually come from units, rounding, assumptions, local rules, or coefficients used by the other source.

Camera Field of View Calculator: inputs, output, and reproducible example

Camera Field of View Calculator calculates horizontal field of view from the supplied parameters, with live validation, a readable formula note, and local browser processing.

What this page actually processes

FieldControlDefault exampleValidation role
Sensor widthNumber36Sensor width is read by the browser as a number value before the tool runs.
Focal lengthNumber50Focal length is read by the browser as a number value before the tool runs.

Reproduce the built-in example

Start with Sensor width = 36; Focal length = 50, then run Camera Field of View Calculator. Change one input at a time so the effect on the result remains traceable.

After validating sensor width, focal length, the page displays its result in the output workspace and enables the relevant copy or download action.

Formula and variable relationship

Calculates rectilinear horizontal FOV from sensor width and focal length. The implemented expression is “2*Math.atan(sensor/(2*f))*180/Math.PI”. The page validates sensor width, focal length before formatting the result in °.

Sensitivity check: change only sensor width from 36 mm to 39.6 mm. With every other input unchanged, horizontal field of view moves from 39.6 to 43.21 °. This provides a reproducible input-to-result check.

When to use it and how to interpret the result

Camera Field of View Calculator is intended for workflows involving Sensor width, Focal length.

Limits and checks before use

Calculates rectilinear horizontal FOV from sensor width and focal length.

Page verification record

Controls inspected2 documented inputsResult pathValidate → process → review → copy/downloadLast content review2026-09-02