Chart - How many beads I need?

Jewelry Discussion
1

Good morning,

Does anyone know where I can locate a chart which tells me if I want
a 16" necklace with all 3mm beads, how many beads I need?

I use to have one and I know RIO use to have one in their catalogue
but of course now that one is needed, I can not locate either.

Thank you,
Laurie

2

Hi Laurie,

Does anyone know where I can locate a chart which tells me if I
want a 16" necklace with all 3mm beads, how many beads I need?

Why worry about a chart, figure it out for yourself. One inch is
25.4 mm. A 16" necklace is 406.4 mm (25.4 x 16 = 406.4). 406.4 mm
divided by 3 = 135.46.

Assuming the necklace isn’t knotted & the beads are touching each
other the 135 number is correct If the necklace is knotted, then you
have to add the length of the knot to the equation. Probably about 1
mm per bead.

To determine the number of mm in an item measured in inches,
multiply the inches by 25.4. If you have an item quoted in mm & want
to convert to inches, multiply the mm by .03937 (1 divided by 25.4).
406.4 x …03937 = 16.

Dave

3 
Does anyone know where I can locate a chart which tells me if I
want a 16" necklace with all 3mm beads, how many beads I need?

No, but this is why you took arithmatic in school! 1 inch=25.4mm.
Multiply 25.4 by 16 to get 406.4 (the length of your necklace in mm).
Divide by 3 (the size of your bead) to get 135.47, and that’s the
number of beads you need. Come on, people, this isn’t rocket
surgery!!

Noel

4

Hello Orchidland,

When figuring out the number of beads necessary for a given length,
don’t forget that the inner diameter (ID) of the strung beads should
be taken into account. This is especially true for larger diameter
beads.

The original question dealt with 3mm beads - so the ID is not a
great concern. However, if using 8 or 10 mm beads for a 15 - 16 inch
choker, that ID might be too close-fitting… a true choker!

Judy in Kansas, who found the garden turtles chewing on the bean
seedlings. I wonder what else they’ll attack.

5 
Assuming the necklace isn't knotted & the beads are touching each
other the 135 number is correct

Don’t forget to allow for the catch, or you might get a 17"
neckace,

6

Hi, Laurie,

Or, you can just lay out a strand of 3mm beads and see how many are
in an inch. If it is a half bead, then 2, or 3 inches.

All the best,
Nanette Kroupa

7

Hi Laurie–Here is a chart I found somewhere-I think it was on a
beading site

'Number of round beads needed for common strand lengths (unknotted):

Bead Size 16" 20" 24" 36"

3mm 130 170 200 300
4mm 100 127 150 225
6mm 67 85 100 150
8mm 50 63 75 113
10mm 40 50 60 90

Hope it’s correct and hope it helps!
Sandra
Elegant Insects jewelry

8

Firemountiain Gems has a page called: Encyclobeadia that gives all
sorts of Check it out!!!