International shipping rates are determined using the USPS's cheapest rate. You can go to their website and get a calculation athttps://postcalc.usps.com/
Select "Calculate the price based on Shape and Size" and use 2 lbs for the weight and use the zip code 60462 for where you are mailing from.
After that, you will see all the different rates. We use the least expensive which is usually "First-Class Package International".
How to lookup USPS rates.