http://www.apple.com/ipad/specs/

Height: 9.56 inches (242.8 mm)
Width:7.47 inches (189.7 mm)
Depth:0.5 inch (13.4 mm)
Weight:
1.5 pounds (.68 kg) Wi-Fi model;
1.6 pounds (.73 kg) Wi-Fi + 3G model
Entre l'A4 et l'A5, en gros.