Length 3048 width 4800

Scale 1:100

So what is the measure in sqf?

The square footage is always the length times the width. The measurement can be inches, feet, meters, etc. 3048 feet would be .58 of a mile; 3048 inches would be 254 ft. Both of those are awfully large for a room. Are these pixels? If 100 pixels equal 1 ft., then 3048 divided by 100 equals 30.48 ft. 4800 pixels would equal 48 ft. The square footage would be 30.48 times 48, equaling 1,463.04 sq. ft.

You take the length multiplied by the width. You didn't tell us what measurement your original numbers are in.

Length 3048 width 4800

Scale 1:100

So what is the measure in sqf?