I've seen some excel sheets on the web that will give you the answer in a jiffy. Hunt around for them or ask a good welders forum - there are pros who crunch the numbers for you and spew out the answers online!

i remember this formula: P= WL / E where:
P is the Pounds of electrode or wire that is required
W is the Weight per foot of weld metal
L is the Length of weld in feet and
E is the Deposition efficiency

Reply by
icyblue (236):
The weight per foot of the weld metal depends of 4 things
1. Area of the cross-section of the weld. 2. Length of the weld. 3. Volume of the weld in cubic inches. 4. Weight of the weld metal per cubic inch. Hope that helps! add a comment