What is 600mm f11 on canon aps c in full frame?

600mm on APS-C (Canon) gives the view of 960mm on full frame. For the same depth of field, f/11 there behaves like about f/17.6 on full frame. Exposure doesn't change: f/11 gives the same brightness on any sensor.

The same view on every common format:

• Medium format (44 x 33): 1215mm at about f/22.3 for the same depth of field
• Full frame: 960mm at about f/17.6 for the same depth of field
• APS-C: 640mm at about f/11.7 for the same depth of field
• APS-C (Canon) (yours): 600mm at about f/11 for the same depth of field
• Micro Four Thirds: 480mm at about f/8.8 for the same depth of field
• 1-inch: 356mm at about f/6.5 for the same depth of field
• 1/1.3-inch: 267mm at about f/4.9 for the same depth of field
• 1/1.7-inch: 209mm at about f/3.8 for the same depth of field
• 1/2.3-inch: 171mm at about f/3.1 for the same depth of field

Crop factors are by the sensor diagonal, rounded as they're usually quoted; a format with a different shape (4:3 against 3:2) frames a little differently across the width. More in the focal length converter.

Computed from the sensor sizes, not written by a model.