What is 20 60mm on aps c in full frame?

20-60mm on APS-C gives the view of 30-90mm on full frame.

The same view on every common format:

• Medium format (44 x 33): 38-114mm
• Full frame: 30-90mm
• APS-C (yours): 20-60mm
• APS-C (Canon): 19-56mm
• Micro Four Thirds: 15-45mm
• 1-inch: 11-33mm
• 1/1.3-inch: 8.3-25mm
• 1/1.7-inch: 6.5-20mm
• 1/2.3-inch: 5.4-16mm

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.