trying to figure out how much wire I need to buy to make a hauberk after I am done with this one.
I have done the math for the ring count at roughtly 11000rings.
5/16
what is the formula for figuring out lengh of wire I need to buy?
tehh rought count cam from the ringlords mail calculator
maile math help
The circumference of a circle is PI * Diam.
Keep in mind that you have two circumferences -- the inner-diameter one, and the outer-diameter one. The actual length will be somewhere in between, as the wire will stretch and compress as you coil it.
With a 5/16" ID, the inner circumference is about 1"
Assuming a wire diameter of 0.05" (somewhere around 16-18 gauge, depending on which standard you pick), the outer circumference is about 1.3"
Picking a number somewhere in the middle (and at the high end, because you'd rather have too much than too little, you need about 1-1/4" of wire per ring.
With 11,000 rings, you need 1146 ft, or a bit more than 1/5 of a mile.
My personal experience is to add 10% for error/waste, and another 40% for mistakes in calculation.

Keep in mind that you have two circumferences -- the inner-diameter one, and the outer-diameter one. The actual length will be somewhere in between, as the wire will stretch and compress as you coil it.
With a 5/16" ID, the inner circumference is about 1"
Assuming a wire diameter of 0.05" (somewhere around 16-18 gauge, depending on which standard you pick), the outer circumference is about 1.3"
Picking a number somewhere in the middle (and at the high end, because you'd rather have too much than too little, you need about 1-1/4" of wire per ring.
With 11,000 rings, you need 1146 ft, or a bit more than 1/5 of a mile.
My personal experience is to add 10% for error/waste, and another 40% for mistakes in calculation.
- sulla
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What are you making it out of? Wire type? You could just go to the local Farmers Co Op or Farm Supply store and buy 1/2 or 1/4 mile spools of 16 or 14 ga galvy steel wire. Either way you are golden.
I made a 1/2 sleeve, mid thigh, hauberk at 14 ga., 3/8" ID, butted, galvy steel fence wire. I bought a 1/2 mile spool and used maybe half of it. I estimate I used 30,000 rings. Maybe 35,000.
I made a 1/2 sleeve, mid thigh, hauberk at 14 ga., 3/8" ID, butted, galvy steel fence wire. I bought a 1/2 mile spool and used maybe half of it. I estimate I used 30,000 rings. Maybe 35,000.
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Konstantin the Red
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