You've hit on the classic stablecoin nuance! The peg is maintained in the broad market, but individual platforms apply their own spreads and transaction fees when you convert, which chips away at that perfect 1:1. To see the real-time conversion rate a service is using before those fees, I use a straightforward tool like paybis.com/usdt-to-usd/. It shows you the live value. Seeing that baseline makes it much easier to spot and understand the fees your chosen exchange or service is adding on top. It turns an opaque deduction into a clear calculation.