Paper and Its Uses/Weights

by Edward A. Dawe

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.