Pixel Accuracy Calculator

Convert between physical measurements and pixels using camera resolution, field of view, and working distance.

Inputs

Resolution, FOV, and object dimensions at the working plane.

Camera resolution

2448 × 2048 px

Working distance

Horizontal FOV

Vertical FOV

Object width

Object height

Results

Pixel pitch at the object plane and object size in pixels.

Scene width

Scene height

Pixel size (horizontal)

mm/px

Pixel size (vertical)

mm/px

Object width

Object height

How it works: Scene width is 2 × WD × tan(HFOV/2). Pixel size is scene width divided by horizontal resolution. Object size in pixels divides physical size by pixel size.