Crop Factor Calculator
Calculate Focal Length Equivalents
Calculate crop factor, full-frame equivalent focal length, depth of field changes, and angle of view for different camera sensors.
Camera & Lens Parameters
Actual focal length of your lens
For depth of field equivalent calculation
What is Crop Factor?
Crop factor compares sensor size to full-frame (35mm). A 50mm lens on APS-C (1.6x) gives the same field of view as an 80mm lens on full-frame.
Note
Crop factor affects field of view and depth of field, but not the actual focal length or aperture of the lens.
Understanding Crop Factor
Crop factor is the ratio of a sensor's diagonal to that of a full-frame (35mm) sensor. It affects field of view and depth of field.
- Smaller sensors = higher crop factor
- Higher crop factor = narrower field of view
- Affects depth of field appearance
Common Sensor Sizes
36 × 24mm - Professional cameras
~23 × 15mm - Enthusiast cameras
17.3 × 13mm - Compact systems
13.2 × 8.8mm - Premium compacts
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