Wire size

From Combat Robot

The following table provides conservative 'rule of thumb' estimates for copper wire amperage capacity in combat robotics applications. Peak amperage loading may safely excede value shown.

Always use multi-strand wire to wire your robot -- solid core wire can fatigue and break under repeated flexing and shock loading.

AWG gauge	Diameter Inches	Ohms per 1000 ft	Robotics amperage rating
8	0.1285	0.6282	73
9	0.1144	0.7921	64
10	0.1019	0.9989	55
11	0.0907	1.26	47
12	0.0808	1.588	41
13	0.0720	2.003	35
14	0.0641	2.525	32
15	0.0571	3.184	28
16	0.0508	4.016	22
17	0.0453	5.064	19
18	0.0403	6.385	16
19	0.0359	8.051	14
20	0.0320	10.15	11
21	0.0285	12.8	9
22	0.0254	16.14	7
23	0.0226	20.36	4.7
24	0.0201	25.67	3.5