Live-rate context
USDT to EUR conversion depends on the exchange, liquidity, EUR withdrawal method, stablecoin network and any spread or fee charged by the provider.
What affects the final price
Compare market price, spread, trading fees, withdrawal fees, network choice, liquidity and whether the platform uses app pricing or order-book pricing.
Next step
Use the live calculators, then verify the quote on the exchange before buying, selling or withdrawing funds.