Brass wire gauge and weight chart

Quick answer: Brass wire weight (kg/m) = diameter² (mm) × 0.00668, based on a density of about 8,500 kg/m³. A 2 mm brass wire weighs about 26.7 g per metre, so 1 kg is roughly 37 m. Gauges are usually given in SWG; 14 SWG is 2.03 mm.

Brass wire is a type of wire made from an alloy of copper and zinc. It is known for its yellow color and corrosion resistance, making it a popular choice for electrical and decorative applications. Brass wire can be used in a variety of industries including construction, automotive, and jewelry making. It is also often used in musical instruments such as saxophones and trumpet, and as a conductor in power transmission and distribution. Brass wire gauge and weight chart

SL	Description	Gauge	Size/Dia (mm)	Weight(KG/M)
1	Brass Wire	1	7.620	0.3904
2	Brass Wire	2	7.140	0.3427
3	Brass Wire	4	6.045	0.2457
4	Brass Wire	5	5.588	0.2099
5	Brass Wire	6	5.156	0.1787
6	Brass Wire	7	4.572	0.1405
7	Brass Wire	8	4.191	0.1181
8	Brass Wire	9	3.759	0.095
9	Brass Wire	10	3.404	0.0779
10	Brass Wire	11	3.048	0.0625
11	Brass Wire	12	2.769	0.0515
12	Brass Wire	13	2.413	0.0391
13	Brass Wire	14	2.108	0.0299
14	Brass Wire	15	1.829	0.0225
15	Brass Wire	16	1.651	0.0183
16	Brass Wire	17	1.473	0.0146
17	Brass Wire	18	1.245	0.0104
18	Brass Wire	19	1.067	0.0077
19	Brass Wire	20	0.889	0.0053
20	Brass Wire	21	0.813	0.0044
21	Brass Wire	22	0.711	0.0034
22	Brass Wire	23	0.635	0.0027
23	Brass Wire	24	0.559	0.0021
24	Brass Wire	25	0.508	0.0017
25	Brass Wire	26	0.457	0.0014
26	Brass Wire	28	0.356	0.0009
27	Brass Wire	29	0.330	0.0007

Brass Sheet Or Coil Weight Chart

Download PDF:Download Brass Wire Gauge and Weight Chart (PDF)

How to calculate brass wire weight

Brass is about 8.5 g/cm³. For round wire, weight per metre = π/4 × d² × 8.5 / 1000 = d² × 0.00668 kg/m (d in mm).

1 mm wire: 0.0067 kg/m (about 150 m per kg)
2 mm wire: 0.0267 kg/m (about 37 m per kg)
3 mm wire: 0.0601 kg/m (about 17 m per kg)

To find the length in a coil, divide the coil weight by the weight per metre.

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Frequently asked questions

How do I convert SWG to mm?

Use a gauge table: 10 SWG = 3.25 mm, 12 SWG = 2.64 mm, 14 SWG = 2.03 mm, 16 SWG = 1.63 mm, 18 SWG = 1.22 mm.

How many metres of brass wire are in 1 kg?

Divide 1 by the weight per metre. For 2 mm wire: 1 ÷ 0.0267 ≈ 37 m.

What is brass wire used for?

Electrical connectors, springs, jewellery, EDM machining, decorative work and mesh.

Weight Chart