Sensor Crop Factor Calculator
Calculate equivalent focal length and field of view based on your camera sensor size and crop factor.
Equivalent Focal Length
Crop factor describes how much smaller a sensor is compared to full-frame (35mm).
Equivalent Focal Length = Actual Focal Length × Crop Factor
Common sensor sizes and crop factors:
| Sensor | Crop Factor | Sensor Size |
|---|---|---|
| Full Frame | 1.0× | 36 × 24mm |
| APS-C (Canon) | 1.6× | 22.3 × 14.9mm |
| APS-C (Nikon/Sony) | 1.5× | 23.5 × 15.6mm |
| Micro Four Thirds | 2.0× | 17.3 × 13mm |
| 1-inch | 2.7× | 13.2 × 8.8mm |
| Smartphone | ~5–7× | ~6 × 4.5mm |
Example: A 50mm lens on APS-C (1.5×) gives the same field of view as a 75mm lens on full frame.