Description

This section is from the book "The Building Trades Pocketbook", by International Correspondence Schools. Also available from Amazon: Building Trades Pocketbook: a Handy Manual of reference on Building Construction.

Calculating The Weight Of Castings, Etc. Part 2

Circumferences And Areas Of Circles From 1-64 To 100

Diam.	Circum.	Area.
1/64	.0491	.0002
1/32	.0862	.0008
1/16	.1963	.0031
1/8	.3927	.0123
3/16	.5890	.0276
1/4	.7854	.0491
5/16	.9817	.0767
3/8	1.1781	.1104
7/16	1.3744	.1503
1/2	1.6708	.1963
9/16	1.7671	.2185
5/8	1.9635	.3068
11/16	2.1598	.3712
3/4	2.3562	.4418
13/16	2.5525	.5185
7/8	2.7489	.6013
15/16	2.9452	.6903
1	8.1416	.7854
1 1/8	3.5343	.9940
1 1/4	3.9270	1.2272
1 3/8	4.3197	1.4849
1 1/2	4.7124	1.7671
1 5/8	5.1051	2.0739
1 3/4	5.4978	2.4053
1 7/8	5.8905	2.7612
2	6.2832	3.1416
2 1/8	6.6759	3.5466
2 1/4	7.0686	3.9761
2 3/8	7.4618	4.4301
2 1/2	7.8540	4.9087
2 5/8	8.2467	5.4119
2 3/4	8.6394	5.9396
2 7/8	9.0321	6.4918
3	9.4248	7.0686
3 1/8	9.8175
3 1/4	10.2102	8.2958
3 3/8	10.6029	8.9462
3 1/2	10.9956	9.6211
3 5/8	11.3883	10.3206
3 3/4	11.7810	11.0447
3 7/8	12.1737	11.7933
4	12.5664	12.5664
4 1/8	12.9591	13.3641
4/14	13.3518	11.1863

Diam	Circum.	Area.
4 3/8	13.7445	15.0330
4 1/2	14.1372	15.9043
4 5/8	14.5299	16.8002
4 3/4	14.9226	17.7206
4 7/8	15.3153	18.6555
5	15.7080	19.6350
5 1/2	16.1007	20.6290
5 1/4	16.4934	21.6476
5 3/8	16.8861	22.6907
5 1/2	17.2788	23.7583
5 5/8	17.6715	24.8505
5 3/4	18.0642	25.9673
5 7/8	18.4569	27.1086
6	18.8496	28.2714
6 1/8	19.2423	29.4648
6 1/4	19.6350	30.6797
6 3/8	20.0277	31.9191
6 1/2	20.4204	33.1831
6 5/8	20.8131	1717
6 3/4	21.2058	35.7848
6 7/8	21.5985	37.1224
7	21.9912	38.4846
7 1/8	22.3839	39.8713
7 1/4	22.7766	41.2826
7 3/8	23.1693	42.7184
7 1/2	23.5620	44.1787
7 5/8	23.9547	45.6636
7 3/4	24.8474	47.1781
7 7/8	24.7401	48.7071
8	25.1328	50.2656
8 1/8	25.5255	51.8487
8 1/4	25.9182	53.4563
8 3/8	26.3109	55.0884
8 1/2	26.7036	66.7451
8 5/8	27.0963	58.4264
8 3/4	27.4890	60.1322
8 7/8	27.8817	61.8625
9	28.2744	63.6174
9 1/8	28.6671	65.3968
9 1/4	29.0598	67.2008
9 3/8	29.4525	69.0293
9 1/2	29.8452	70.8823
9 5/8	30.2379	72.7599
9 3/4	30.6306	74.6621

Table - (Continued).

Diam.	Circum.	Area.
9 7/8	31.0233	76.589
10	31.4160	78.540
10 1/8	31.8087	80.516
10 1/4	32.2014	82.516
10 3/8	32.5941	84.541
10 1/2	32.9868	86.590
10 5/8	33.3795	88.664
10 3/4	33.7722	90.763
10 7/8	34.1649	92.886
11	34.5576	95.033
11 1/8	34.9503	97.205
11 1/4	35.3430	99.402
11 3/8	35.7357	101.623
11 1/2	36.1284	103.869
11 5/8	36.5211	106.139
11 3/4	36.9138	108.434
11 7/8	37.3065	110.754
12	37.6992	113.098
12 1/8	38.0919	115.466
12 1/4	38.4846	117.859
12 3/8	38.8773	120.277
12 1/2	39.2700	122.719
12 5/8	39.6627	125.185
12 3/4	40.0554	127.677
12 7/8	40.4481	130.192
13	40.8408	132.733
13 1/8	41.2335	135.297
13 1/4	41.6262	137.887
13 3/8	42.0189	140.501
13 1/2	42.4116	143.139
13 5/8	42.8043	145.802
13 3/4	43.1970	148.490
13 7/8	43.5897	151.202
14	43.9824	153.938
14 1/8	44.3751	156.700
14 1/4	44.7678	159.485
14 3/8	45.1605	162.296
14 1/2	45.5532	165.130
14 5/8	45.9459	167.990
14 3/4	46.3386	170.874
14 7/8	46.7313	173.782
15	47.1240	176.715
15 1/8	47.5167	179.673
15 1/4	47.9094	182.655
15 3/8	48.3021	185.661
15 1/2	48.6948	188.692

Diam.	Circum.	Area.
15 5/8	49.0875	191.748
15 3/4	49.4802	194.828
15 7/8	49.8729	197.933
16	50.2656	201.062
16 1/8	50.6583	204.216
16 1/4	51.0510	207.395
16 3/8	51.4437	210.598
16 1/2	51.8364	213.825
16 5/8	52.2291	217.077
16 3/4	52.6218	220.354
16 7/8	53.0145	223.655
17	53.4072	226.981
17 1/8	53.7999	230.331
17 1/4	54.1926	233.706
17 3/8	54.5853	237.105
17 1/2	54.9780	240.529
17 5/8	55.3707	243.977
17 3/4	55.7634	247.450
17 7/8	56.1561	250.948
18	56.5488	254.470
18 1/8	56.9415	258.016
18 1/4	57.3342	261.587
18 3/8	57.7269	265.183
18 1/2	58.1196	268.803
18 5/8	58.5123	272.448
18 3/4	58.9050	276.117
18 7/8	59.2977	279.811
19	59.6904	283.529
19 1/8	60.0831	287.272
19 1/4	60.4758	291.040
19 3/8	60.8685	294.832
19 1/2	61.2612	298.648
19 5/8	61.6539	302.489
19 3/4	62.0466	306.355
19 7/8	62.4393	310.245
20	62.8320	314.160
20 1/8	63.2247	318.099
20 1/4	63.6174	322.063
20 3/8	64.0101	326.051
20 1/2	64.4028	330.064
20 5/8	64.7955	334.102
20 3/4	65.1882	338.164
20 7/8	65.5809	342.250
21	65.9736	346.361
21 1/8	66.3663	350.497
21 1/4	66.7590	354.657

Table - (Continued)

Diam.	Circum.	Area.
21 3/8	67.1517	358.842
21 1/2	67.5444	363.051
21 5/8	67.9371	367.285
21 3/4	68.3298	371.543
21 7/8	68.7225	375.826
22	69.1152	380.134
22 1/8	69.5079	384.466
22 1/4	69.9006	388.822
22 3/8	70.2933	393.203
22 1/2	70.6860	397.609
22 5/8	71.0787	402.038
22 3/4	71,4714	406.494
22 7/8	71.8641	410.978
23	72.2568	415,177
23 1/8	72.6495	420.004
23 1/4	73.0422	424.558
23 3/8	73.4349	429.135
23 1/2	73.8276	433.737
23 3/8	74.2203	438.364
23 3/4	74.6130	443.015
23 7/8	75.0057	447.690
24	75.3984	452.390
24 1/8	75.7911	457.115
24 1/4	76.1838	461.864
24 3/8	76.5765	466.638
24 1/2	76.9692	471.486
24 5/8	77.3619	476.259
24 3/4	77.7546	481.107
24 7/8	78.1473	485.979
25	78.5400	490.875
25 1/8	78.9327	495.796
25 1/4	79.3254	500.742
25 3/8	79.7181	505.712
25 1/2	80.1108	510.706
25 5/8	80.5035	515.726
25 3/4	80.8962	520.769
25 7/8	81.2889	525.838
26	81.6816	530.930
26 1/8	82.0743	536.048
26 1/4	82.4670	54l.190
26 3/8	82.8597	546.356
26 1/2	83.2524	551.547
26 5/8	83.6451	556.763
26 3/4	84.0378	562.003
26 7/8	84.4305	567.267
27	84.8232	572.557

Diam.	Circum.	Area.
27 1/8	85.2159	577.870
27 1/4	85.6086	583.209
27 3/8	86.0013	588.571
271	86.3940	593.959
27 5/8	86.7867	599.371
27 3/4	87.1794	604.807
27 7/8	87.5721	610.268
28	87.9648	615.754
28 1/8	88.3575	621.264
28 1/4	88.7502	626.798
28 3/8	89.1429	632.357
28 1/2	89.5356	637.941
28 5/8	89.9283	643.549
28 3/4	90.3210	649.182
28 7/8	90.7137	654.840
29	91.1064	660.521
29 1/8	91.4991	666.228
29 1/4	91.8918	671.959
29 3/84	92.2845	677.714
29 1/2	92.6772	683.494
29 5/8	93.0699	689.299
29 3/4	93.4626	695.128
29 7/8	93.8553	700.982
30	94.2480	706.860
30 1/8	94.6407	712.763
30 1/4	95.0334	718.690
30 3/8	95.4261	724.642
30 1/2	95.8188	730.618
30 5/8	96.2115	736.619
30 3/4	96.6042	742.645
30 7/8	96.9969	748.695
31	97.3896	754.769
31 1/8	97.7823	760.869
31 1/4	98.1750	766.992
31 3/8	98.5677	773.140
31 1/2	98.9604	779.313
31 5/8	99.3531	785.510
31 3/4	99.7458	791.732
31 7/8	100.1385	797.979
32	100.5312	8042250
32 1/8	100.9239	810.545
32 1/4	101.3166	816.865
32 3/8	101.7093	823.210
32 1/2	102.1020	829.579
32 5/8	102.4947	835.972
32 3/4	102.8874	842.391

Table - (Continued).

Diam.	Circum.	Area.
32 7/8	103.280	848.833
33	103.673	855.301
33 1/8	104.065	861.792
33 1/4	104.458	868.309
33 3/8	104.851	874.850
33 1/2	105.244	881.415
33 5/8	105.636	888.005
33 3/4	106.029	894.620
33 7/8	106.422	901.259
34	106.814	907.922
34 1/8	107.207	914.611
34 1/4	107.600	921.323
34 3/8	107.992	928.061
34 1/2	108.385	934.822
34 5/8	108.778	941.609
34 3/4	109.171	948.420
34 7/8	109.563	955.255
35	109.956	962.115
35 1/8	110.349	969.000
35 1/4	110.741	975.909
35 3/8	111.134	982.842
35 1/2	111.527	989.800
35 5/8	111.919	996.783
35 3/4	112.312	1,003.790
35 7/8	112.705	1,010.822
36	113.098	1,017.878
36 1/8	113.490	1,024.960
36 1/4	113.883	1,032.065
36 3/8	114.276	1,039.195
36 1/2	114.668	1,046.349
36 5/8	115.061	1,053.528
36 3/4	115.454	1,060.732
36 7/8	115.846	1,067.960
37	116.239	1,075.213
37 1/8	116.632	1,082.490
37 1/4	117.025	1,089.792
37 3/8	117.417	1,097.118
37 1/2	117.810	1,104.469
37 5/8	118.203	1,111.844
37 3/4	118.595	1,119.244
37 7/8	118.988	1,126.669
38	119.381	1,134.118
38 1/8	119.773	1,141.591
38 1/4	120.166	1,149.089
38 3/8	120.559	1,156.612
38 1/2	120.952	1,164.159

Diam.	Circum.	Area.
38 5/8	121.344	1,171.731
38 3/4	121.737	1,179.327
38 7/8	122.130	1,186.948
39	122.522	1,194.593
39 1/8	122.915	1,202.263
39 1/4	123.308	1,209.958
39 3/8	123.700	1,217.677
39 1/2	124.093	1,225.420
39 5/8	124.486	1,233.188
39 3/4	124.879	1,240.981
39 7/8	125.271	1.248.798
40	125.664	1,256.640
40 1/8	126.057	1,264.510
40 1/4	126.449	1,272.400
40 3/8	126.842	1,280.310
40 1/2	127.235	1,288.250
40 5/8	127.627	1,296.220
40 3/4	128.020	1,304.210
40 7/8	128.413	1,312.220
41	128.806	1,320.260
41 1/8	129.198	1,328.320
41 1/4	129.591	1,336.410
41 3/8	129.984	1,344.520
41 1/2	130.376	1,352.660
41 5/8	130.769	1,360.820
41 3/4	131.162	1,369.000
41 7/8	131.554	1,377.210
42	131.947	1,385.450
42 1/8	132.340	1,393.700
42 1/4	132.733	1,401.990
42 3/8	133.125	1,410.300
42 1/2	133.518	1,418.630
42 5/8	133.911	1,426.990
42 3/4	134.303	1,435.370
42 7/8	134.696	1,443.770
43	135.089	1,452.200
43 1/8	135.481	1,460.660
43 1/4	135.874	1,469.140
43 3/8	136.267	1,477.640
43 1/2	136.660	1,486.170
43 5/8	137.052	1.494.730
43 3/4	137.445	1,503.300
43 7/8	137.838	1,511.910
44	138.230	1,520.530
44 1/8	138.623	1,529.190
44 1/4	139.016	1,537.860

Table - (Continued).

Diam.	Circum.	Area.
44 3/8	139.408	1,546.56
44 1/2	139.801	1,555.29
44 5/8	140.194	1,564.04
44 3/4	140.587	1,572.81
44 7/8	140.979	1,581.61
45	141.372	1,590.43
45 1/2	141.765	1,599.28
45 1/4	142.157	1,608.16
45 3/8	142.550	1,617.05
45 1/2	142.943	1,625.97
45 5/8	143.335	1,634.92
45 3/4	143.728	1,643.89
45 7/8	144.121	1,652.89
46	144.514	1,661.91
46 1/8	144.906	1,670.95
46 1/4	145.299	1,680.02
46 3/8	145.692	1,689.11
46 1/2	146.084	1,698.23
46 5/8	146.477	1,707.37
46 3/4	146.870	1,716.54
46 7/8	147.262	1,725.73
47	147.655	1,734.95
47 1/8	148.048	1,744.19
47 1/4	148.441	1,753.45
47 3/8	148.833	1,762.74
47 1/2	149.226	1.772.06
47 5/8	149.619	1,781.40
47 3/4	150.011	1,780.76
47 7/8	150.404	1,800.15
48	150.797	1.809.56
48 1/8	151.189	1,819.00
48 1/4	151.582	1,828.46
48 3/8	l51.975	1,837.95
48 1/2	152.368	1,847.46
48 5/8	152.760	1,856.99
48 3/4	153.153	1.866.55
48 7/8	153.546	1876.14
49	153.938	1,885.75
49 1/8	154.331	1,895.38
49 1/4	154.724	1,905.04
49 3/8	155.116	1,914.72
49 1/2	155.509	1,924.43
49 5/8	155.902	1,934.16
49 3/4	156.295	1,948.91
49 7/8	156.687	1.953.69
50	157.080	1963.50

Diam.	Circum.	Area.
50 1/8	157.473	1,973.33
50 1/4	157.865	1,983.18
50 3/8	158.258	1,993.06
50 1/2	158.651	2,002.97
50 5/8	159.043	2,012.89
50 3/4	159.436	2,022.85
50 7/8	159.829	2,032.82
51	160.222	2,042.83
51 1/8	160.614	2,052.85
51 1/4	161.007	2,062.90
51 3/8	161.400	2,072.98
51 1/2	161.792	2,083.08
51 5/8	162.185	2,093.20
51 3/4	162.578	2,103.35
51 7/8	162.970	2,113.52
52	163.363	2,123.72
52 1/8	163.756	2.133.94
52 1/4	164.149	2.144.19
52 3/8	164.541	2,154.46
52 1/2	164.934	2,164.76
52 5/8	165.327	2,175.08
52 3/4	165.719	2,185.42
52 7/8	166.112	2,195.79
53	166.505	2.206.19
53 1/8	166.897	2216.61
53 1/4	167.290	2,227.05
53 3/8	167.683	2,237.52
53 1/2	168.076	2248.01
53 5/8	168.468	2258.53
53 3/4	168.861	2,269.07
53 7/8	169.254	2,279.64
54	169.646	2290.23
54 1/8	170.039	2,300.84
54 1/4	170.432	2311.48
54 3/8	170.824	2322.15
54 1/2	171.217	2332.83
54 5/8	171.610	2343.55
54 3/4	172.003	2354.29
54 7/8	172.395	2,365.05
55	172.788	2,375.83
55 1/8	173.181	2,386.65
55 1/4	173.573	2,397.48
55 3/8	173.966	2,408.34
55 1/2	171.359	2419.23
55 5/8	174.751	2430.14
55 3/4	175.144	2441.07

Table - (Continued).

Diam.	Circum.	Area.
55 7/8	175.537	2,452.03
56	175.930	2,463.01
56 1/8	176.322	2,474.02
56 1/4	176.715	2,485.05
56 3/8	177.108	2,496.11
56 1/2	177.500	2,507.19
56 5/8	177.893	2,518.30
56 3/4	178.286	2,529.43
56 7/8	178.678	2,540.58
57	179.071	2,551.76
57 1/8	179.464	2,562.97
57 1/4	179.857	2,574.20
57 3/8	180.249	2,585.45
57 1/2	180.642	2,596.73
57 5/8	181.035	2,608.03
57 3/4	181.427	2,619.36
57 7/8	181.820	2,630.71
58	182.213	2,642.09
58 1/8	182.605	2,653.49
58 1/4	182.998	2,664.91
58 3/8	183.391	2,676.36
58 1/2	183.784	2,687.84
58 5/8	184.176	2,699.33
58 3/4	184.569	2,710.86
58 7/8	184.962	2,722.41
59	185.354	2,733.98
59 1/8	185.747	2,745.57
59 1/4	186.140	2,757.20
59 3/8	186.532	2,768.84
59 1/2	186.925	2,780.51
59 5/8	187.318	2,792.21
59 3/4	187.711	2,803.93
59 7/8	188.103	2,815.67
60	188.496	2,827.44
60 1/8	188.889	2,839.23
60 1/4	189.281	2,851.05
60 3/8	189.674	2,862.89
60 1/2	190.067	2,874.76
60 5/8	190.459	2,886.65
60 3/4	190.852	2,898.57
60 7/8	191.245	2,910.51
61	191.638	2,922.47
61 1/8	192.030	2,934.46
6l 1/4	192.423	2,946.48
61 3/8	192.816	2,958.52
61 1/2	193.208	2,970.58

Diam.	Circum.	Area.
61 5/8	193.601	2,982.67
61 3/4	193.994	2,994.78
61 7/8	194.386	3,006.92
62	194.779	3,019.08
62 1/8	195.172	3,031.26
62 1/4	195.565	3,043.47
62 3/8	195.957	3,055.71
62 1/2	196.350	3,067.97
62 5/8	196.743	3,080.25
62 3/4	197.135	3,092.56
62 7/8	197.528	3,104.89
63	197.921	3,117.25
63 1/8	198.313	3,129.64
63 1/4	198.706	3,142.04
63 3/8	199.099	3,154.47
63 1/2	199.492	3,166.93
63 5/8	199.884	3,179.41
63 3/4	200.277	3,191.91
63 7/8	200.670	3,204.44
64	201.062	3,217.00
64 1/8	201.455	3,229.58
64 1/4	201.848	3,242.18
64 3/8	202.240	3,254.81
64 1/2	202.633	3,267.46
64 5/8	203.026	3,280.14
64 3/4	203.419	3,292.84
64 7/8	203.811	3,305.56
65	204.204	3,318.31
65 1/8	204.597	3,331.09
65 1/4	204.989	3,343.89
65 3/8	205.382	3,356.71
65 1/2	205.775	3,369.56
65 5/8	206.167	3,382.44
65 3/4	206.560	3,395.33
65 7/8	206.953	3,408.26
66	207.346	3,421.20
66 1/8	207.738	3,434.17
66 1/4	208.131	3.447.17
66 3/8	208.524	3,460.19
66 1/2	208.916	3,473.24
66 5/8	209.309	3,486.30
66 3/4	209.702	3.499.40
66 7/8	210.094	3,512.52
67	210.487	3,525.66
67 1/8	210.880	3,538.83
67 1/4	211.273	3,552.02

Table - (Continued).

Diam.	Circum.	Area.
67 3/8	211.665	3,565.24
67 1/2	212.058	3,578.48
67 5/8	212.451	3,591.74
67 3/4	212.843	3,605.04
67 7/8	213.236	3,618.35
68	213.629	3,631.69
68 1/2	214.021	3,645.05
68 1/4	214.414	3,658.44
68 3/8	214.807	3,671.86
68 1/2	215.200	3,685.29
68 5/8	215.592	3,698.76
68 3/4	215.985	3,712.24
68 7/8	216.378	3,725.75
69	216.770	3,739.29
69 1/8	217.163	3,752.85
69 1/4	217.556	3,766.43
69 3/8	217.948	3,780.04
69 1/2	218.341	3,793.68
69 5/8	218.734	3,807.34
69 3/4	219.127	3,821.02
69 7/8	219.519	3,834.73
70	219.912	3,848.46
70 1/2	220.305	3,862.22
70 1/4	220.697	3,876.00
70 3/8	221.090	3,889.80
70 1/2	221.483	3,903.63
70 5/8	221.875	3,917.49
70 3/4	222.268	3,931.37
70 7/8	222.661	3,945.27
71	223.054	3,959.20
71 1/8	223.446	3,973.15
71 1/4	223.839	3,987.13
71 3/8	224.232	4,001.13
7l 1/2	224.624	4,015.16
71 5/8	225.017	4,029.21
71 3/4	225.410	4,043.29
71 7/8	225.802	4,057.39
72	226.195	4,071.51
72 1/8	226.588	4,085.66
72 1/4	226.981	4.099.84
72 3/8	227.373	4,114.04
72 1/2	227.766	4,128.26
72 5/8	228.159	4,142.51
72 3/4	228.551	4,156.78
72 7/8	228.944	4,171.08
73	229.337	4185.40

Diam.	Circum.	Area.
73 1/8	229.729	4,199.74
73 1/4	230.122	4,214.11
73 3/8	230.515	4,228.51
73 1/2	230.908	4,242.93
73 5/8	231.300	4,257.37
73 3/4	231.693	4271.84
73 7/8	232.086	4,286.33
74	232.478	4,300.85
74 1/8	232.871	4,315.39
74 1/4	2382264	4,329.96
74 3/8	233.656	4,344.55
74 1/2	234.049	4,359.17
74 5/8	234.442	4,373.81
74 3/4	234.835	4,388.47
74 7/8	235.227	4,403.16
75	285.620	4,417.87
75 1/8	236.013	4,432.61
75 1/4	236.405	4.447.38
75 3/8	236.798	2.16
75 1/2	237.191	76.98
75 5/8	237.583	4491.81
75 3/4	237.976	4,506.67
75 7/8	288.860	4,521.56
76	238.762	4,536.47
76 1/8	239.154	4.551.41
76 1/4	239.547	4,566.36
76 3/8	239.940	4,581.35
76 1/2	240.332	4596.36
76 5/8	240.725	4,611.39
76 3/4	241.118	4626.45
76 7/8	241.510	4,641.53
77	241.903	4656.64
77 1/8	242.296	4671.77
77 1/4	242.689	4.686.92
77 3/8	243.081	4702.10
77 1/2	243.474	4717.31
77 5/8	248.867	4732.54
77 3/4	244.259	4747.79
77 7/8	244.652	4763.07
78	245.045	4,778.37
78 1/8	245.437	4793.70
78 1/4	245.830	4,809.05
78 3/8	246.223	4824.43
78 1/2	246.616	4839.83
78 5/8	247.008	4855.26
78 3/4	247.401	4870.71

Table - (Continued).

Diam.	Circum.	Area.
78 7/8	247.794	4,886.18
79	248.186	4,901.68
79 1/8	248.579	4,917.21
79 1/4	248.972	4,932.75
79 3/8	249.364	4,948.33
79 1/2	249.757	4,963.92
79 5/8	250.150	4,979.55
79 3/4	250.543	4,995.19
79 7/8	250.935	5,010.86
80	251.328	5,026.56
80 1/8	251.721	5,042.28
80 1/4	252.113	5,058.03
80 3/8	252.506	5,073.79
80 1/2	252.899	5,089.59
80 5/8	253.291	5,105.41
80 3/4	253.684	5,121.25
80 7/8	254.077	5,137.12
81	254.470	5,153.01
81 1/8	254.862	5,168.93
81 1/4	255.255	5,184.87
81 3/8	255.648	5,200.83
81 1/2	256.040	5,216.82
81 5/8	256.433	5,232.84
81 3/4	256.826	5,248.88
81 7/8	257.218	5,264.94
82	257.611	5,281.03
82 1/8	258.004	5,297.14
82 1/4	258.397	5,313.28
82 3/8	258.789	5,329.44
82 1/2	259.182	5,345.63
82 5/8	259.575	5,361.84
82 3/4	259.967	5,378.08
82 7/8	260.360	5,394.34
83	250.753	5.410.62
83 1/8	261.145	5,426.93
83 1/4	261.538	5,443.26
83 3/8	261.931	5,459.62
83 1/2	262.324	5.476.01
83 5/8	262.716	5.492.41
83 3/4	263.109	5,508.84
83 7/8	263.502	5,525.30
84	263.894	5,541.78
84 1/8	264.287	5,558.29
84 1/4	264.680	5,574.82
84 3/8	265.072	5,591.37
84 1/2	265.465	5,607.95

Diam.	Circum.	Area.
84 5/8	265.858	5,624.56
84 3/4	266.251	5,641.18
84 7/8	266.643	5,657.84
85	267.036	5,674.51
85 1/8	267.429	5,691.22
85 1/4	267.821	5,707.94
85 3/8	268.214	5,724.69
85 1/2	268.607	5,741.47
85 5/8	268.999	5,758.27
85 3/4	269.392	5.775.10
85 7/8	269.785	5,791.94
86	270.178	5,808.82
86 1/8	270.570	5,825.72
86 1/4	270.963	5,842.64
86 3/8	271.356	5,859.59
86 1/2	271.748	5,876.56
86 5/8	272.141	5,893.55
86 3/4	272.534	5,910.58
86 7/8	272.926	5,927.62
87	273.319	5,944.69
87 1/8	273.712	5,961.79
87 1/4	274.105	5,978.91
87 3/8	274.497	5,996.05
87 1/2	274.890	6,013.22
87 5/8	275.283	6,030.41
87 3/4	275.675	6,047.63
87 7/8	276.068	6,064.87
88	276.461	6,082.14
88 1/8	276.853	6,099.43
88 1/4	277.246	6,116.74
88 3/8	277.629	6,134.08
88 1/2	278.032	6,151.45
88 5/8	278.424	6,168.84
88 3/4	278.817	6,186.25
88 7/8	279.210	6,203.69
89	279.602	6.221.15
89 1/8	279.995	6,238.64
89 1/4	280.388	6,256.15
89 3/8	280.780	6,273.69
89 1/2	281.173	6,291.25
89 5/8	281.566	6,308.84
89 3/4	281.959	6,326.45
89 7/8	282.351	6,344.08
90	282.744	6,361.74
90 1/8	283.137	6,379.42
90 1/4	283.529	6,397.13

Table - (Continued).

Diam.	Circum.	Area.
90 3/8	283.922	6.414.86
90 1/2	284.315	6,432.62
90 5/8	284.707	6450.40
90 3/4	285.100	6,468.21
90 7/8	285.493	6,486.04
91	285.886	6,503.90
91 1/8	286.278	6,521.78
91 1/4	286.671	6,539.68
91 3/8	287.064	6,557.61
91 1/2	287.456	6,575.56
91 5/8	287.849	6,593.54
91 3/4	288.242	6,611.55
91 7/8	288.634	6,629.57
92	289.027	6,647.63
92 1/8	289.420	6,665.70
92 1/4	289.813	6,683.80
92 3/8	290.205	6,701.93
92 1/2	290.598	6720.08
92 5/8	290.991	6,738.25
92 3/4	291.383	6,756.45
92 7/8	291.776	6,774.68
93	292.169	6,792.92
93 1/8	292.562	6,811.20
93 1/4	292.954	6,829.49
93 3/8	293.347	6847.82
93 1/2	293.740	6,866.16
93 5/8	294.132	6884.53
93 3/4	294.525	6.902.93
93 7/8	294.918	6,921.35
94	295.310	6,939.79
94 1/8	295.703	6958.26
94 1/4	296.096	6976.76
94 3/8	296.488	6995.28
94 1/2	296..881	7,013.82
94 5/8	297.274	7.032.39
94 3/4	297.667	7050.98
94 7/8	298.059	7.069.59
95	298.452	7,088.24
95 1/8	298.845	7.106.90

Diam.	Circum.	Area.
95 1/4	299.237	7.125.59
95 3/8	299.680	7.144.31
95 1/2	800.028	7.163.04
95 5/8	300.415	7,181.81
95 3/4	300.808	7200.60
95 7/8	301.201	7,219.41
96	301.594	7.238.25
96 1/8	301.986	7,257.11
96 1/4	302.379	7275.99
96 3/8	302.772	7.294.91
96 1/2	303.164	7313.84
96 5/8	303.557	7332.80
96 3/4	303.950	7351.79
96 7/8	304.342	7,370.79
97	304.735	7,389.83
97 1/8	305.128	7,408.89
97 1/4	305.521	7.427.97
97 3/8	305.913	7,447.08
97 1/2	306.306	7,466.21
97 5/8	306.699	7,485.37
97 3/4	307.091	7504.55
97 7/8	307.484	7,523.75
98	307.877	7542.98
98 1/8	308.270	7562.24
98 1/4	308.662	7,581.52
98 3/8	309.055	7.600.82
98 1/2	309.448	7620.15
98 5/8	309.840	7639.50
98 3/4	310.233	7,658.88
98 7/8	310.626	7,678.28
99	311.018	7,697.71
99 1/8	311.411	7,717.16
99 1/4	311.804	7.736.63
99 3/8	312.196	7.756.13
99 1/2	312.589	7.775.66
99 5/8	312.982	7.795.21
99 3/4	313.375	7814.78
99 7/8	313.767	7834.38
100	314.160	7,854.00

The preceding table may be used to determine the diameter when the circumference or area is known. Thus, the diameter of a circle having an area of 7,200 sq. in. is, approximately, 95 3/4 in.

Continue to:

		Free Books / Architecture / The Building Trades Pocketbook /







		Calculating The Weight Of Castings, Etc. Part 2

Calculating The Weight Of Castings, Etc. Part 2

Description

Calculating The Weight Of Castings, Etc. Part 2

Circumferences And Areas Of Circles From 1-64 To 100

Tags