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.
Optics
Depth of Field Calculator
Compute the total depth of field for any camera and lens combination using focal length, f-number, focus distance, and circle of confusion. Use it to plan sharp focus zones before a shoot.
Fill in the required fields to see your result.
Key differences
| Crop Factor Calculator | Depth of Field Calculator | |
|---|---|---|
| Category | Photography | Optics |
| Inputs required | 2 | 4 |
| Result | Equivalent Focal Length (mm) | Depth of Field (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. | Compute the total depth of field for any camera and lens combination using focal length, f-number, focus distance, and circle of confusion. Use it to plan sharp focus zones before a shoot. |