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Equivalent Weights of Papers of Various Sizes based on the Weight of Demy, 22½ in. × 17½ in.
| Area in Square Inches. | Size of Paper. | Size in Inches. | ½ | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 563¾ | Super-royal printing | 27½ × 20½ | .72 | 1.43 | 2.86 | 4.30 | 5.32 | 7.16 | 8.59 | 10.02 | 11.46 | 12.89 | 14.32 | 17.18 | 20.05 | 22.91 | 25.78 | 28.64 | 31.50 | 34.37 |
| 579½ | Double post, wtg. | 30½ × 19 | .74 | 1.47 | 2,94 | 4.42 | 5.89 | 7.36 | 8.83 | 10.30 | 11.77 | 13.25 | 14.72 | 17.66 | 20.60 | 23.54 | 26.49 | 29.43 | 32.37 | 35.32 |
| 600 | Double crown | 30 × 20 | .76 | 1.52 | 3.05 | 4.57 | 6.10 | 7.62 | 9.14 | 10.69 | 12.19 | 13.72 | 15.24 | 18.28 | 21.33 | 24.38 | 27.42 | 30.47 | 33.52 | 36.57 |
| 606⅜ | Double post, printing | 31½ × 19¼ | .77 | 1.54 | 3.08 | 4.62 | 6.16 | 7.70 | 9.24 | 10.78 | 12.32 | 13.86 | 15.40 | 18.48 | 21.56 | 24.64 | 27.72 | 30.80 | 33.88 | 36.96 |
| 620 | Double demy, writing | 31 × 20 | .79 | 1.57 | 3.15 | 4.72 | 6.30 | 7.87 | 9.44 | 11.02 | 12.59 | 14.17 | 15.74 | 18.89 | 22.04 | 25.18 | 28.34 | 31.48 | 34.64 | 37.78 |
| 644 | Elephant | 28 × 23 | .82 | 1.64 | 3.27 | 4.91 | 6.54 | 8.18 | 9.81 | 11.45 | 13.08 | 14.72 | 16.36 | 19.62 | 22.89 | 26.16 | 29.43 | 32.71 | 35.98 | 39.25 |
| 660 | Imperial | 30 × 22 | .84 | 1.68 | 3.35 | 5.03 | 6.70 | 8.38 | 10.06 | 11.73 | 13.41 | 15.08 | 16.76 | 20.11 | 23.46 | 26.81 | 30.17 | 33.52 | 36.87 | 40.22 |
| 693 | Double large post | 33 × 21 | .88 | 1.76 | 3.52 | 5.28 | 7.04 | 8.80 | 10.56 | 12.32 | 14.08 | 15.84 | 17.60 | 21.12 | 24.64 | 28.16 | 31.68 | 35.20 | 38.72 | 42.24 |
| 750 | Quad pott | 30 × 25 | .95 | 1.90 | 3.81 | 5.71 | 7.62 | 9.52 | 11.42 | 13.33 | 15.23 | 17.14 | 19.04 | 22.85 | 26.66 | 30.46 | 34.28 | 38.09 | 41.90 | 45.70 |
| 787½ | Double demy | 35 × 22½ | 1.00 | 2.00 | 4.00 | 6.00 | 8.00 | 10.00 | 12.00 | 14.00 | 16.00 | 18.00 | 20.00 | 24.00 | 28.00 | 32.00 | 36.00 | 40.00 | 44.00 | 48.00 |
| 828 | Double„ medium, printing | 36 × 23 | 1.05 | 2.10 | 4.20 | 6.31 | 8.41 | 10.51 | 12.62 | 14.72 | 16.82 | 18.93 | 21.03 | 25.23 | 29.43 | 33.64 | 37.85 | 42.05 | 46.26 | 50.46 |
| 884 | Atlas | 34 × 26 | 1.12 | 2.25 | 4.49 | 6.74 | 8.98 | 11.23 | 13.47 | 17.96 | 15.72 | 20.21 | 22.45 | 26.94 | 31.43 | 35.92 | 40.41 | 44.90 | 49.39 | 53.88 |
| 912 | Double royal, writing | 38 × 24 | 1.16 | 2.32 | 4.63 | 6.95 | 9.26 | 11.58 | 13.89 | 16.21 | 18.52 | 20.84 | 23.16 | 27.79 | 32.42 | 37.04 | 41.68 | 46.32 | 50.94 | 55.58 |
| 1,000 | Double royal, printing | 40 × 25 | 1.27 | 2.54 | 5.08 | 7.62 | 10.16 | 12.70 | 15.24 | 17.78 | 20.32 | 22.86 | 25.40 | 30.47 | 35.55 | 40.63 | 45.71 | 50.79 | 55.87 | 60.95 |
| 1,064 | Double globe | 38 × 28 | 1.35 | 2.70 | 5.40 | 8.11 | 10.81 | 13.51 | 16.21 | 18.91 | 21.62 | 24.32 | 27.02 | 32.42 | 37.83 | 43.23 | 48.64 | 54.04 | 59.44 | 64.84 |
| 1,080 | Double„ elephant | 40 × 27 | 1.37 | 2.74 | 5.49 | 8.23 | 10.97 | 13.71 | 16.46 | 19.20 | 21.94 | 24.69 | 27.43 | 32.91 | 38.39 | 43.88 | 49.37 | 54.85 | 60.34 | 65.82 |
| 1,200 | Quad crown | 40 × 30 | 1.52 | 3.05 | 6.10 | 9.14 | 12.19 | 15.24 | 18.28 | 21.33 | 24.38 | 27.42 | 30.47 | 36.57 | 42.66 | 48.76 | 54.84 | 60.95 | 67.04 | 73.14 |
| 1,320 | Double imperial | 44 × 30 | 1.68 | 3.35 | 6.70 | 10.06 | 13.41 | 16.76 | 20.11 | 23.46 | 26.82 | 30.17 | 33.52 | 40.22 | 46.93 | 53.63 | 60.34 | 67.04 | 73.75 | 80.45 |
| 1,575 | Quad demy | 45 × 35 | 2.00 | 4.00 | 8.00 | 12.00 | 16.00 | 20.00 | 24.00 | 28.00 | 32.00 | 36.00 | 40.00 | 48.00 | 56.00 | 64.00 | 72.00 | 80.00 | 88.00 | 96.00 |
| 2,000 | Quad„ royal | 50 × 40 | 2.54 | 5.08 | 10.16 | 15.24 | 20.32 | 25.40 | 30.48 | 35.56 | 40.64 | 45.72 | 50.80 | 61.94 | 71.10 | 81.26 | 91.42 | 101.60 | 111.74 | 121.90 |
| 2,128 | Quad„ globe | 56 × 38 | 2.70 | 5.40 | 10.81 | 16.21 | 21.62 | 27.02 | 32.42 | 37.83 | 43.23 | 48.64 | 54.04 | 64.34 | 75.66 | 86.46 | 97.28 | 108.03 | 111.33 | 129.68 |
To obtain equivalent weights of heavier papers, take the column which is a multiple of the weight, and multiply, e.g., 72 lb. demy, equivalent in atlas required; 24 lb. demy: 53.88; 72=53.88 × 3 = 161.64 = 162 lb. Or take the unit column from table, multiply and add, e.g., demy 65 lb., equivalent weight required in super-royal printing; 6 lb. demy=8.59 super-royal. 60 lb.=85.9; 5 lb. =7.16=93.06=93 lb. super-royal. The table may, of course, be used to obtain all equivalents, such as imperial, 40 lb.; required weight of demy=24 lb. demy. The nearest whole number should be taken, except when ordering regular stock weights.
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