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Millimeters to Inches Conversion Chart |
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1 inch = 25.4mm |
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Size in mm |
Closest equivalent in Inches |
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1mm |
just over 1/32 of an inch |
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2mm |
just over 1/16 of an inch |
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3mm |
1/8 of an inch |
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4mm |
5/32 of an inch |
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5mm |
3/16 of an inch |
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6mm |
1/4 of an inch |
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7mm |
9/32 of an inch |
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8mm |
5/16 of an inch |
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9mm |
11/32 of an inch |
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10mm |
3/8 of an inch |
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11mm |
7/16 of an inch |
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12mm |
15/32 of an inch |
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13mm |
1/2 of an inch |
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14mm |
9/16 of an inch |
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15mm |
19/32 of an inch |
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16mm |
10/16 of an inch |
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17mm |
11/16 of an inch |
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18mm |
23/32 of an inch |
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19mm |
3/4 of an inch |
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20mm |
13/16 of an inch | | | | |
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Beads Per Inch Chart |
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This chart shows you the approximate number of beads for various lengths.
(length of strand excludes clasp)
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Beads Per Inch Chart |
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Bead Size (mm) |
1" |
4" |
16" |
20" |
24" |
28" |
32" |
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3 |
8.46 |
33.8 |
136 |
170 |
204 |
237 |
271 |
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4 |
6.35 |
25.4 |
102 |
127 |
153 |
178 |
204 |
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5 |
5.08 |
20.32 |
82 |
102 |
125 |
143 |
164 |
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6 |
4.23 |
16.9 |
68 |
84 |
101 |
118 |
136 |
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7 |
3.62 |
14.4 |
58 |
70 |
86 |
101 |
116 |
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8 |
3.17 |
12.68 |
51 |
64 |
76 |
89 |
102 |
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10 |
2.54 |
10.16 |
41 |
51 |
61 |
71 |
81 |
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12 |
2.11 |
8.44 |
34 |
42 |
51 |
59 |
68 |
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14 |
1.81 |
7.24 |
29 |
36 |
43 |
50 |
58 |
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16 |
1.58 |
6.32 |
25 |
32 |
38 |
44 |
51 |
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18 |
1.41 |
5.64 |
23 |
28 |
34 |
39 |
45 | | | | |
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Necklace Lengths |
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Type |
Length |
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Choker |
16 inches |
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Princess |
18 inches |
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Matinee |
24 inches |
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Opera |
32 inches |
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Rope |
48 inches | |
But how many beads will I need?
Well, even without an Intel Inside Pentium Processor, you can calculate the number of beads needed for a strand using the following formula:
Just remember that 1 inch = 2.54cm = 25.4mm (1cm ~ 10mm). So, multiply the length of the necklace by 25.4, and divide by the size of the beads in milimeters.
Examples:
1)18 inch necklace made with 4mm beads:
Number of beads = 18x25.4/4 = 108
2)32 inch necklace made with 6mm beads:
Number of beads = 32x25.4/6 = 128
Remember: since beads may be irregular, this number is approximate. Also, if you are knotting between the beads, add 1 or 2mm for each knot, depending on the thickness.
In case you don't remember...
Conversion Chart
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1 kilo |
1000 grams |
2.2 pounds |
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1/2 kilo |
500 grams |
1.1 pounds |
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1 gram |
.035 ounces |
... |
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1 ounce |
28.35 grams |
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1 gross |
12 dozen |
144 |
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1/2 gross |
72 |
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1 mass |
100 dozen |
1,200 |
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1 inch |
2.4cm |
... |
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1cm |
10mm |
... |
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1m |
100cm |
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