Calculator

Crop factor calculator

Full-frame equivalent focal length, aperture and field of view for any sensor.

Full-frame equivalent focal length—
Equivalent aperture (depth of field)—
Diagonal field of view—

How it works#

Equivalent focal length = focal × crop; equivalent aperture (for depth of field and total light) = N × crop. Exposure itself does not change with sensor size.

Last updated October 03, 2026 · How we calculate · Sources