Paper and Its Uses/Weights

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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
187½ Pott 15 × 12½ .24 .48 .95 1.43 1.90 2.38 2.78 3.33 3.80 4.28 4.76 5.71 6.66 7.61 8.57 9.51 10.47 11.42
218⅝ Foolscap, writing 16½ × 13¼ .28 .56 1.11 1.66 2.22 2.78 3.33 3.88 4.44 5.00 5.55 6.66 7.77 8.88 9.99 11.10 12.21 13.32
229½ Foolscap, printing 17 × 13½ .29 .58 1.17 1.75 2.33 2.91 3.50 4.08 4.66 5.25 5.83 6.99 8.15 9.32 10.49 11.65 12.82 13.98
272⅞ Pinched post 18½ × 14¾ .35 .69 1.39 2.08 2.77 3.47 4.16 4.85 5.54 6.24 6.93 8.31 9.70 11.08 12.47 13.86 15.24 16.63
289⅜ Post, writing 19 × 15¼ .37 .74 1.47 2.21 2.94 3.68 4.42 5.15 5.89 6.62 7.36 8.83 10.30 11.77 13.24 15.15 16.66 18.18
298¾ Post, printing 19¼ × 15½ .38 .76 1.52 2.27 3.03 3.79 4.55 5.31 6.06 6.82 7.58 9.09 10.60 12.12 13.63 15.15 16.66 18.18
300 Crown 20 × 15 .38 .76 1.52 2.28 3.05 3.81 4.57 5.33 6.10 6.86 7.62 9.14 10.67 12.19 13.71 15.24 16.76 18.28
310 Demy, writing 20 × 15½ .39 .78 1.55 2.33 3.11 3.89 4.66 5.44 6.22 6.99 7.77 9.32 10.88 12.43 13.99 15.54 17.10 18.65
324⅝ Foolscap, sheet-and-a-half 24½ × 13¼ .41 .82 1.65 2.47 3.30 4.12 4.95 5.77 6.60 7.43 8.24 9.89 11.54 13.19 14.83 16.48 18.13 19.78
330 Copy 20 × 16½ .42 .84 1.68 2.51 3.35 4.19 5.03 5.87 6.70 7.54 8.38 10.05 11.73 13.40 15.08 16.76 18.43 20.11
346½ Large post 21 × 16½ .44 .88 1.76 2.64 3.52 4.40 5.28 6.16 7.04 7.92 8.80 10.56 12.32 14.08 15.84 17.60 19.36 21.12
375 Double pott 25 × 15 .48 .95 1.90 2.86 3.81 4.76 5.71 6.66 7.62 8.57 9.52 11.42 13.33 15.23 17.14 19.04 20.95 22.85
385 Medium, writing 22 × 17½ .49 .98 1.96 2.93 3.91 4.89 5.87 6.85 7.82 8.80 9.78 11.73 13.68 15.64 17.59 19.55 21.15 23.46
393¾ Demy, printing 23 × 18 .50 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00 24.00
414 Medium, printing 23 × 18 .53 1.05 2.10 3.15 4.20 5.26 6.31 7.36 8.41 9.46 10.51 12.61 14.71 16.82 18.92 21.02 23.13 25.23
437¼ Double foolscap, writing 26½ × 16½ .56 1.11 2.22 3.31 4.44 5.55 6.66 7.77 8.88 9.99 11.10 13.32 15.54 17.76 19.98 22.20 24.43 26.65
456 Royal, writing 24 × 19 .58 1.16 2.32 3.47 4.63 5.79 6.95 8.11 9.26 10.42 11.58 13.89 16.21 18.52 20.84 23.16 25.47 27.79
459 Double foolscap, printing 27 × 17 .58 1.16 2.32 3.47 4.66 5.83 6.99 8.16 9.33 10.49 11.66 13.98 16.31 18.65 20.98 23.31 25.64 27.97
500 Royal, printing 25 × 20 .63 1.27 2.54 3.81 5.08 6.35 7.62 8.89 10.16 11.43 12.70 15.23 17.77 20.31 22.85 25.39 27.93 30.47
519¾ Super-royal, writing 27 × 19¼ .66 1.32 2.64 3.96 5.28 6.60 7.92 9.24 10.56 11.88 13.20 15.84 18.48 21.12 23.76 26.40 29.04 31.68
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.