Dimensions
12½ Paper Size
12½
Sizes
mm :
318 × 241 mm
cm :
31.8 × 24.1 cm
inches :
12.5 × 9.5 inches
Measurements
Aspect ratio :
Area :
Perimeter :
Diagonal :
Other US Envelope Sizes
6¼
152 × 89 mm
6¾
165 × 92 mm
7
172 × 95 mm
7¾ Monarch
191 × 98 mm
8⅝
219 × 92 mm
9
225 × 98 mm
10
241 × 104 mm
11
264 × 114 mm
12
279 × 121 mm
14
292 × 127 mm
A1
92 × 130 mm
16
305 × 152 mm
A2 Lady Grey
146 × 111 mm
A4
159 × 108 mm
A6 Thompson's Standard
165 × 121 mm
A7 Besselheim
184 × 133 mm
A8 Carr's
206 × 140 mm
A9 Diplomat
222 × 146 mm
A10 Willow
241 × 152 mm
A Long
225 × 98 mm