hi jerry!
if you think this way, you will not need a wire chart to find equivalents in other sizes.
take any wire gauge size (example #18) count up 3 sizes= using 2 #21 gauge
- #17 would be equal to 2#20
- #15 would be equal to 2#18
- # 20 would be equal to 2#23
- #15 would be equal to 4#18
to find equivalent in 1/2 size gauge wire (example #181/2) count up 3 sizes and 4 sizes.
so 1#181/2 would be equal to 1#21 and 1#22
- #151/2 would be equal to 1#18 and 1#19
- #171/2 would be equal to 1#20 and 1#21
- #221/2 would be equal to 1#25 and 1#26
hope this helps
zubbly