How much does it cost to send a letter from Ohio to South Korea in 2016?

In 2016, the cost to send a standard letter from Ohio to South Korea using the United States Postal Service (USPS) was typically around $1.20 for a First-Class International stamp. However, prices could vary based on the mailing service used, weight of the letter, and any additional services like tracking or insurance. It's always best to check with USPS or a similar service for the most accurate rates.