Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Photography
Crop Factor Calculator
Calculate the full-frame equivalent focal length of a lens on a crop-sensor camera by multiplying the actual focal length by the sensor's crop factor. Use it when comparing lenses across systems, predicting field of view, or planning gear purchases.
Fill in the required fields to see your result.
Photography
Lens Focal Length Crop Factor Calculator
Converts a lens's actual focal length to its equivalent focal length on a different sensor size using the crop factor. Use it when switching between full-frame and APS-C or Micro Four Thirds camera systems.
Fill in the required fields to see your result.
Key differences
| Crop Factor Calculator | Lens Focal Length Crop Factor Calculator | |
|---|---|---|
| Category | Photography | Photography |
| Inputs required | 2 | 3 |
| Result | Equivalent Focal Length (mm) | Equivalent Focal Length (mm) |
| What it does | Calculate the full-frame equivalent focal length of a lens on a crop-sensor camera by multiplying the actual focal length by the sensor's crop factor. Use it when comparing lenses across systems, predicting field of view, or planning gear purchases. | Converts a lens's actual focal length to its equivalent focal length on a different sensor size using the crop factor. Use it when switching between full-frame and APS-C or Micro Four Thirds camera systems. |