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Jewelry Wire Gauge Calculator — Length, Weight & Cost

Get precise wire lengths, weights, and cost estimates for jewelry making projects

Total Wire

2.9 ft

Weight

0.19 oz

Spools

1

Est. Cost

$3.48

0.812 mm diameter

Wire Requirements

2.9 ft
34.8 inches total
Weight
0.19 oz
5.3 g
Est. Cost
$3.48
1 spool(s)

Per Piece

Wire per Piece1.74" (0.145 ft)
Wire Diameter0.812 mm (20 AWG)
Weight per Foot0.064 oz
Cost per Foot$1.2

Cost by Material (20 ga, 2.9 ft)

Copper$0.38
Brass$0.44
Sterling Silver$3.48
Gold-Filled$5.37

Gauge Reference

AWGmmBest For
14 ga1.628 mmHeavy bangles, clasps
16 ga1.291 mmBangles, ear wires
18 ga1.024 mmEar wires, jump rings
20 ga0.812 mmJump rings, wrapping
22 ga0.644 mmWrapping, chain mail
24 ga0.511 mmFine wrapping, crochet
26 ga0.405 mmWeaving, coiling
28 ga0.321 mmDelicate weaving

Tips

Half-hard vs dead-soft: Use half-hard wire for structural elements (clasps, ear wires) and dead-soft for wrapping and weaving.
Buy extra: Order 15–20% more wire than calculated to account for practice, mistakes, and design adjustments.
Work hardening: Wire hardens as you bend it. Tumble finished pieces in a rotary tumbler for 30–60 minutes to harden and polish.

Example Calculations

120 Sterling Silver Jump Rings (6mm, 20 AWG)

Inputs

Wire Gauge20 AWG
MaterialSterling Silver
ProjectJump Rings
Quantity20
Ring Diameter6 mm

Result

Total Wire2.9 ft (34.8 in)
Wire per Ring1.74 inches
Weight0.19 oz (5.3 g)
Spools1
Estimated Cost$3.48

Wire per ring = π × 6mm / 25.4 + 1" = 0.74 + 1.0 = 1.74". Total = 1.74 × 20 = 34.8" = 2.9 ft. At $1.20/ft for 20 AWG sterling: $3.48. Weight = 2.9 × 0.064 = 0.19 oz.

250 Copper Chain Links (8mm, 18 AWG)

Inputs

Wire Gauge18 AWG
MaterialCopper
ProjectChain Links
Quantity50
Link Diameter8 mm

Result

Total Wire6.5 ft (78.0 in)
Wire per Link1.98 inches
Weight0.44 oz (12.5 g)
Spools1
Estimated Cost$1.30

Wire per link = (π × 8mm / 25.4) × 1.5 + 0.5" = 1.48 + 0.5 = 1.98". Total = 1.98 × 50 = 99.1" = 8.3 ft. At $0.20/ft for 18 AWG copper: $1.65.

Frequently Asked Questions

Q

What gauge wire should I use for jewelry making?

The most versatile gauges for jewelry are 20 and 22 AWG. Use 18–20 gauge for structural components like jump rings, ear wires, and clasps. Use 22–26 gauge for wire wrapping, weaving, and decorative coiling. Heavier 14–16 gauge works for bangles and thick statement pieces.

  • 14–16 AWG (1.3–1.6 mm): heavy bangles, cuff bracelets, structural clasps
  • 18 AWG (1.0 mm): ear wires, large jump rings, hook clasps
  • 20 AWG (0.8 mm): jump rings, headpins, general-purpose structural wire
  • 22 AWG (0.6 mm): wire wrapping, chain mail, lighter jump rings
  • 24–28 AWG (0.3–0.5 mm): fine wrapping, weaving, wire crochet
AWGDiameterBest Uses
14 ga1.63 mmBangles, heavy clasps
18 ga1.02 mmEar wires, jump rings
20 ga0.81 mmJump rings, headpins
22 ga0.64 mmWrapping, chain mail
26 ga0.41 mmFine weaving, coiling
Q

How much wire do I need for jump rings?

Wire per jump ring = circumference (π × diameter) + 1 inch for overlap. For 6mm jump rings, each ring needs about 0.74 + 1 = 1.74 inches of wire. For 100 rings, you need about 174 inches (14.5 feet) of wire.

  • 4 mm jump rings: ~1.49" wire each (100 rings = 12.4 ft)
  • 6 mm jump rings: ~1.74" wire each (100 rings = 14.5 ft)
  • 8 mm jump rings: ~1.99" wire each (100 rings = 16.6 ft)
  • 10 mm jump rings: ~2.24" wire each (100 rings = 18.6 ft)
  • Add 15–20% extra for practice and waste
Q

How much does jewelry wire cost per foot?

Costs vary dramatically by material. Copper wire costs $0.03–$0.45/ft depending on gauge. Sterling silver runs $0.28–$4.20/ft. Gold-filled is the most expensive at $0.42–$6.50/ft. Practice with copper before cutting into precious metals.

  • Copper (cheapest): $0.03–$0.45/ft by gauge
  • Brass: $0.04–$0.55/ft by gauge
  • Sterling silver: $0.28–$4.20/ft by gauge
  • Gold-filled: $0.42–$6.50/ft by gauge
  • Thicker gauges (14–16) cost more per foot due to material volume
Material20 ga/ft18 ga/ft14 ga/ft
Copper$0.13$0.20$0.45
Brass$0.15$0.24$0.55
Sterling Silver$1.20$1.90$4.20
Gold-Filled$1.85$2.90$6.50
Q

What is the difference between half-hard and dead-soft wire?

Dead-soft wire bends easily with fingers and is best for wrapping, weaving, and intricate designs. Half-hard wire has more spring and holds its shape, making it ideal for ear wires, clasps, and structural elements that need to resist bending.

  • Dead-soft: bends easily, great for wrapping and weaving, no spring
  • Half-hard: moderate resistance, holds shape, best for ear wires and clasps
  • Full-hard: very stiff, used for tension pieces and springs (rare in jewelry)
  • Wire work-hardens as you manipulate it — dead-soft becomes half-hard with bending
  • Tumbling finished pieces for 30–60 minutes work-hardens and polishes simultaneously
Q

How do I convert between AWG and millimeters?

AWG (American Wire Gauge) and millimeters have an inverse relationship: higher gauge numbers mean thinner wire. Common conversions: 14 AWG = 1.63 mm, 18 AWG = 1.02 mm, 20 AWG = 0.81 mm, 22 AWG = 0.64 mm, 26 AWG = 0.41 mm.

  • 14 AWG = 1.628 mm (thickest common jewelry wire)
  • 16 AWG = 1.291 mm
  • 18 AWG = 1.024 mm
  • 20 AWG = 0.812 mm (most popular for jewelry)
  • 22 AWG = 0.644 mm, 24 AWG = 0.511 mm, 26 AWG = 0.405 mm, 28 AWG = 0.321 mm
Q

How many spools of wire do I need?

Standard spools hold 25 feet of wire. Calculate total wire needed and divide by 25 to get spool count. For 100 jump rings at 6mm, you need about 14.5 feet (1 spool). Buying larger spools (100 ft) saves 20–30% per foot.

  • Standard spool: 25 feet — most common retail size
  • Half spool: 12.5 feet — available for precious metals
  • Bulk spool: 100 feet — 20–30% savings per foot
  • 100 jump rings (6 mm, 20 ga): ~14.5 ft = 1 standard spool
  • A basic bracelet uses 3–6 feet; a necklace uses 8–15 feet of chain wire

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Last Updated: Mar 9, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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