International Mailing Costs For Coins Sold On Ebay

I do not know how much it costs from the US to Europe but I ship coins the other way around and feel quite lucky that I can offer sending coins to the US for 4.95 USD via registered mail. I use air cushion envelopes and pay about 4 € if they are not too heavy.
Sometimes I buy coins from the US and the costs for shippin and handling vary between 3 USD and 20 USD. Most expensive is the global shipping program that ebay offers.

Do you print your own postage through ebay's shipping program online?

If so, most of the cheaper international shipping options aren't available for purchase online, you must purchase in person at your post office.

If you have a smartphone or a tablet, you can download the USPS app and it allows you to compare the current postal rates of all their shipping options from specific US cities to anywhere in the world, by simply entering the size (deminsions) and weight of the package, after which, you will see live, realtime pricing info for every shipping option they can offer you.
I have used this app on a regular basis for the last few years, and it has always been the most accurate way for me to know the most reliable and economical way to ship items internationally. But even the app doesn't include all the shipping options sometimes, but it does tell you that they are available, but only in person at your local Post Office.
I mostly ship USPS First Class Mail Large (padded) envelope for around $7.00 worldwide.

I thought I'd bump this thread as I've been watching a coin (a 5-centime piece I need to complete a date set) being offered by a French seller on ebay. It's not rare or expensive - the price was about $7. The dealer's charge for shipping to the UK (only priority mail was shown) was over $10! I put an identical coin (different date) in a flip, then between two pieces of card in an envelope so that it was secure, and weighed it - it came to 17 grams. I checked the French Post Office website and the cost of sending an envelope this size and weight via airmail to the UK would have been only about $1.20. I e-mailed the dealer to ask if he could send it to me via normal airmail rather than by priority mail, but he refused, so has done himself out of a sale. Yet I regularly send and receive coins to and from France using ordinary mail and have never had any problem. My French pen-friend used to post me coins back in the mid-1970s! Obviously I'd pay for registered or recorded delivery if it was something valuable like a gold coin, but I refuse to pay more for postage than the coin is worth!

There is another reason why I prefer receiving low-value items via 'normal' mail. Since the British Post Office closed my local branch a few years ago, I now have to drive to the main sorting office in a nearby town to collect registered or recorded delivery items, if I am away from home when the postman calls. The opening hours roughly coincide with my normal working hours, and there is nowhere to park nearby. So I have to spend my lunch hour driving round in circles trying to get a parking place and then joining a queue to pick up my item... and in the past two years, the sorting office has once lost my package (an 1895-O Morgan dollar, which fortunately turned up back with the sender a few weeks later) and has once given me an item of mail that turned out to be addressed to a completely different person in another part of town...