Crop Factor Calculator

Find the full-frame equivalent focal length.

Equivalent focal length 52.5

Formula: equivalent = focal length × crop factor

Step-by-step with your numbers:

1. Values used:

2. Focal length = 35

3. Crop factor = 1.5 x

5. Equivalent focal length = Focal length x Crop factor = 35 x 1.5 = 52.5

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Crop sensors 'zoom in' — find the full-frame equivalent of a lens.

The math behind it

equivalent focal length = focal length × crop factor (APS-C ≈ 1.5–1.6, MFT = 2.0).

35 mm × 1.5 → 52.5 mm equivalent.

Crop factors?

Canon APS-C 1.6, Nikon/Sony APS-C 1.5, Micro Four Thirds 2.0.