How much to send letter to Belgium?

The cost to send a letter to Belgium varies depending on the weight and the type of service you choose. In the United States, for example, a standard international letter (up to 1 ounce) typically costs around $1.40 with First-Class Mail International. It's advisable to check with your local postal service or their website for the most accurate and up-to-date rates, as they can change frequently.