The extra 10 mm in width is 5 mm on each side. So maybe 5mm in the radial direction, too.

However,

Sheldon Brown has a computer calibration chart, showing
700x32 at 2155mm circumference,
700x44 at 2224. (Computers count the distance of each revolution on the ground)

Circumference = Pi*radius*2, so the radius = C/2/Pi

2155 gives radius of 343 mm (googling "343*2 mm in inches" gives 27.008 inches. That sounds about right.)
2224 gives radius of 354 mm

That's interesting, 11 mm difference. More than I would expect. Tires do flatten out at the contact patch, so maybe that helps reduce the difference?

(Cateye says 32mm is 2155, 40mm is 2200. That's 7mm height difference.)