I completely understand your concern about accuracy. I've been using the Bitcoin calculator on Paybis for this exact purpose, and it's been very reliable. It pulls live market rates directly from major exchanges, so you get a real-time conversion that reflects the actual market value. The interface is straightforward—you just enter the amount of Bitcoin, select your preferred currency, and it instantly shows you the exact equivalent value. I particularly appreciate that it displays the total amount clearly, with no hidden costs or surprises. It's become my go-to tool for quick portfolio checks and planning future trades. You can access it directly on their website whenever you need an accurate conversion.