Encountering a conversion of footpounds per inch to joules per meter is not entirely uncommon in the scientific community or in college coursework  particularly when dealing with physical sciences and the measuring of force. There is a quick and easy conversion method available to avoid too much headache.

Calculate the initial footpounds per inch value. Once you've measure the starting figure, you'll be able to convert with great ease.

Multiply your original amount by 53.38. There are 53.38 (rounded to the hundredth) joules per meter in each footpound per inch. This number should give you an approximation. If you need a more specific figure, multiply by 53.3786594.

Relabel the unit of measurement to joules per meter. Your resulting amount should be accurate to the nearest hundredth, unless you used the extended decimal places for increased accuracy.
References
 Photo Credit ULTRA.F/Photodisc/Getty Images