To accurately calculate PayPal fees, you can use a PayPal Gebühren Rechner (https://paypalgebuhrenrechner.de/). This tool helps you quickly determine how much PayPal will deduct from a transaction, whether you're sending or receiving money. Just enter the amount, and the calculator shows the fees and the final amount you'll get or need to send. It's especially useful for freelancers, online sellers, and businesses.