SnapMarker® Spec Sheet

FRACTIONS TO MILLIMETERS TO DECIMALS
FRACTIONS	MILLIMETERS	DECIMAL-INCHES	DECIMAL-INCHES
		ROUNDED UP	NOT ROUNDED
	0.0100	0.0004	0.0003937
	0.0200	0.0008	0.0007874
	0.0300	0.0012	0.0011811
	0.0400	0.0016	0.0015748
	0.0500	0.0020	0.0019685
	0.0600	0.0024	0.0023622
	0.0700	0.0028	0.0027559
	0.0800	0.0032	0.0031496
	0.0900	0.0035	0.0035433
	0.1000	0.0040	0.003937
	0.2000	0.0080	0.007874
	0.3000	0.0120	0.011811
1/64"	0.3969	0.0156	0.015625953
	0.4000	0.0158	0.015748
	0.5000	0.0197	0.019685
	0.6000	0.0236	0.023622
	0.7000	0.0276	0.027559
1/32"	0.7937	0.0312	0.031247969
	0.8000	0.0315	0.031496
	0.9000	0.0354	0.035433
	1.0000	0.0394	0.03937
3/64"	1.1906	0.0469	0.046873922
1/16"	1.5875	0.0625	0.062499875
5/64"	1.9844	0.0781	0.078125828
	2.0000	0.0787	0.07874
3/32"	2.3812	0.0937	0.093747844
7/64"	2.7781	0.1094	0.109373797
	3.0000	0.1181	0.11811
1/8"	3.1750	0.1250	0.12499975
9/64"	3.5719	0.1406	0.140625703
5/32"	3.9687	0.1562	0.156247719
	4.0000	0.1575	0.15748
11/64"	4.3656	0.1719	0.171873672
3/16"	4.7625	0.1875	0.187499625
	5.0000	0.1969	0.19685
13/64"	5.1594	0.2031	0.203125578
7/32"	5.5562	0.2187	0.218747594
15/64"	5.9531	0.2344	0.234373547
	6.0000	0.2362	0.23622
1/4"	6.3500	0.2500	0.2499995
17/64"	6.7469	0.2656	0.265625453
	7.0000	0.2756	0.27559
9/32"	7.1437	0.2812	0.281247469
19/64"	7.5406	0.2969	0.296873422
5/16"	7.9375	0.3125	0.312499375
	8.0000	0.3150	0.31496
21/64"	8.3344	0.3281	0.328125328
11/32"	8.7312	0.3437	0.343747344
	9.0000	0.3543	0.35433
23/64"	9.1281	0.3594	0.359373297
3/8"	9.5250	0.3750	0.37499925
25/64"	9.9219	0.3906	0.390625203
	10.0000	0.3937	0.3937
13/32"	10.3187	0.4062	0.406247219
27/64"	10.7156	0.4219	0.421873172
	11.0000	0.4331	0.43307
7/16"	11.1125	0.4375	0.437499125
29/64"	11.5094	0.4531	0.453125078
15/32"	11.9062	0.4687	0.468747094
	12.0000	0.4724	0.47244
3-1/64"	12.3031	0.4844	0.484373047
1/2"	12.7000	0.5000	0.499999
	13.0000	0.5118	0.51181
33/64"	13.0968	0.5156	0.515621016
17/32"	13.4937	0.5312	0.531246969
35/64"	13.8906	0.5469	0.546872922
	14.0000	0.5512	0.55118
9/16"	14.2875	0.5625	0.562498875
37/64"	14.6844	0.5781	0.578124828
	15.0000	0.5906	0.59055
19/32"	15.0312	0.5937	0.591778344
39/64"	15.4781	0.6094	0.609372797
5/8"	15.8750	0.6250	0.62499875
	16.0000	0.6299	0.62992
41/64"	16.2719	0.6406	0.640624703
21/32"	16.6687	0.6562	0.656246719
	17.0000	0.6693	0.66929
43/64"	17.0656	0.6719	0.671872672
11/16"	17.4625	0.6875	0.687498625
45/64"	17.8594	0.7031	0.703124578
	18.0000	0.7087	0.70866
23/32"	18.2562	0.7187	0.718746594
47/64"	18.6532	0.7344	0.734376484
	19.0000	0.7480	0.74803
3/4"	19.0500	0.7500	0.7499985
49/64"	19.4469	0.7656	0.765624453
25/32"	19.8433	0.7812	0.781230721
	20.0000	0.7874	0.7874
51/64"	20.2402	0.7969	0.796856674
13/16"	20.6375	0.8125	0.812498375
	21.0000	0.8268	0.82677
53/64"	21.0344	0.8281	0.828124328
27/32"	21.4312	0.8437	0.843746344
55/64"	21.8281	0.8594	0.859372297
	22.0000	0.8661	0.86614
7/8"	22.2250	0.8750	0.87499825
57/64"	22.6219	0.8906	0.890624203
	23.0000	0.9055	0.90551
29/32"	23.0187	0.9062	0.906246219
59/64"	23.4156	0.9219	0.921872172
15/16"	23.8125	0.9375	0.937498125
	24.0000	0.9449	0.94488
61/64"	24.2094	0.9531	0.953124078
31 /32"	24.6062	0.9687	0.968746094
	25.0000	0.9843	0.98425
63/64"	25.0031	0.9844	0.984372047
1"	25.4000	1.0000	0.999998
	26.0000	1.0240	1.02362
1-1/16"	27.0000	1.0630	1.06299
	28.0000	1.1020	1.10236
	29.0000	1.1420	1.14173
	30.0000	1.1810	1.1811
	31.0000	1.2205	1.22047
1-1/4"	31.7500	1.2500	1.2499975
	32.0000	1.2600	1.25984
	33.0000	1.2990	1.29921
	34.0000	1.3390	1.33858
	35.0000	1.3780	1.37795
	36.0000	1.4170	1.41732
	37.0000	1.4570	1.45669
	38.0000	1.4960	1.49606
1-1/2"	38.1000	1.5000	1.499997
	39.0000	1.5350	1.53543
	40.0000	1.5750	1.5748
	41.0000	1.6140	1.61417
	42.0000	1.6540	1.65354
	43.0000	1.6930	1.69291
	44.0000	1.7320	1.73228
	45.0000	1.7720	1.77165
	46.0000	1.8110	1.81102
	47.0000	1.8500	1.85039
1-57/64"	48.0000	1.8900	1.88976
	49.0000	1.9290	1.92913
	50.0000	1.9690	1.96850
2"	50.8000	2.0000	1.999996
	51.0000	2.0080	2.00787
	52.0000	2.0470	2.04724
	53.0000	2.0870	2.08661
	54.0000	2.1260	2.12598
	55.0000	2.1650	2.16535
	56.0000	2.2050	2.20472
	57.0000	2.2440	2.24409
2-1/4"	57.1500	2.2500	2.2499955
	58.0000	2.2835	2.28346
	59.0000	2.3230	2.32283
	60.0000	2.3620	2.3622
	61.0000	2.4020	2.40157
	62.0000	2.4410	2.44094
	63.0000	2.4800	2.48031
2-1/2"	63.5000	2.5000	2.499995
	64.0000	2.5200	2.51968
	65.0000	2.5590	2.55905
	66.0000	2.5980	2.59842
	67.0000	2.6380	2.63779
	68.0000	2.6770	2.67716
	69.0000	2.7170	2.71653
	70.0000	2.7560	2.7559
	71.0000	2.7950	2.79527
	72.0000	2.8350	2.83464
	73.0000	2.8740	2.87401
	74.0000	2.9130	2.91338
2-61/64"	75.0000	2.9530	2.95275
	76.0000	2.9920	2.99212
3"	76.2000	3.0000	2.999994
3-1/32"	77.0000	3.0310	3.03149
	78.0000	3.0710	3.07086
	79.0000	3.1100	3.11023
	80.0000	3.1500	3.1496
	81.0000	3.1890	3.18897
	82.0000	3.2280	3.22834
	83.0000	3.2680	3.26771
	84.0000	3.3070	3.30708
	85.0000	3.3460	3.34645
	86.0000	3.3860	3.38582
	87.0000	3.4250	3.42519
	88.0000	3.4650	3.46456
3-1/2"	88.9000	3.5000	3.499993
	89.0000	3.5040	3.50393
	90.0000	3.5430	3.5433
	91.0000	3.5830	3.58267
	92.0000	3.6220	3.62204
	93.0000	3.6610	3.66141
	94.0000	3.7010	3.70078
	95.0000	3.7400	3.74015
	96.0000	3.7800	3.77952
	97.0000	3.8190	3.81889
	98.0000	3.8580	3.85826
	99.0000	3.8980	3.89763
3-15/16"	100.0000	3.9370	3.93700
4"	101.6000	4.0000	3.999992
5"	127.0000	5.0000	4.99999
6"	152.4000	6.0000	5.999988
8"	203.2000	8.0000	7.999984
10"	254.0000	10.0000	9.99998
12"	304.8000	12.0000	11.999976
14"	355.6000	14.0000	13.999972
16"	406.4000	16.0000	15.999968
18"	457.2000	18.0000	17.999964
20"	508.0000	20.0000	19.999960
24"	609.6000	24.0000	23.999952

The fractions used herein are pure fractions, not "nominal pipe sizes" indicated by fractions in other tables on this Site. As discussed in those other tables, the fractions used in common terminology to refer to nominal pipe sizes do not accurately reflect the true outside diameter of pipes, and the outside diameters further differ between PVC, copper, and other pipe material types.

This table was compiled using a multiplier of 25.4 to convert from inches to millimeters, and a multiplier of 0.03937 to convert from millimeters to inches.

SnapMark, Inc. strives to maintain accuracy on our website. SnapMark, Inc. has attempted to cross-reference data and investigate the validity of the data. However, errors may occur in base data and in its processing by computers, HTML, and the Internet. The user assumes all risk and liability from the use of the information set forth in these tables. SnapMark, Inc. makes no warranty, either expressed or implied, as to the accuracy of these tables. SnapMark, Inc. shall not be held liable for any type of damages resulting from the use of these tables. These tables are presented with the understanding that they will be used for preliminary results which the user will independently verify for themselves using sources such as the CRC STANDARD MATHEMATICAL TABLES book.