The exchange rate between USD Coin (USDC) and Tether (USDT) is typically very close to 1:1, as both are fiat-backed stablecoins pegged to the U.S. dollar. However, slight variations can occur due to factors like liquidity, platform fees, and market conditions.

These minor discrepancies are generally negligible for most users. If you're planning to convert USDC to USDT, it's advisable to check the current rates and fees on your chosen platform to ensure the best value.