How much is 1 arb worth in dollars?

I'm just curious, how much is 1 arb worth in dollars exactly? I've been hearing a lot about cryptocurrencies and their fluctuating values, but I'm still not entirely sure how to convert them into real-world currency. Could you please explain to me how the conversion works and give me an accurate figure for 1 arb in dollars? I'd really appreciate it if you could break it down for me in a simple, understandable way.