Crop Factor Tool

Translate focal length and optional aperture equivalence across sensor formats.

Source sensor

Target sensor

Custom source crop factor

Custom target crop factor

Focal length (mm)

Aperture (optional)

Equivalent focal length —

DoF-equivalent aperture —

Assumptions

Equivalent focal length matches field of view: focal × (target crop ÷ source crop). Aperture equivalence is labeled as depth-of-field equivalence.

Related tools

Field of View · Hyperfocal