This quote: how many points is it off the real rate Exchange-rate spread calculator: spread percent plus the real difference per 10,000 units

The rates posted at exchange counters all look about the same, but the notch each one adds above the mid-market varies. This tool quantifies "how far the quote sits from the mid-market" as a percent, then converts it into the money you actually overpay or lose when you change 10,000 units. If you have both a buy and a sell price, enter both to see the full spread; if you only have one dealt price, switch to single-price mode to see how far that one deal drifted from the mid-market.

Bid + Ask Single dealt price

Mid-market rate M The reference mid-market rate you looked up, e.g. 1.08

Quoted bid The price the counter buys foreign currency from you at, e.g. 1.05

Quoted ask The price the counter sells foreign currency to you at, e.g. 1.11

How to read this With both a bid and ask, spread % = (ask − bid) ÷ mid × 100, showing how wide the total markup is on a full round trip in and out. With one dealt price, it shows how far that single deal drifted from the mid-market, in percent. The "difference per 10,000 units" turns the percent into a concrete amount: a 1% spread on 10,000 is 100. That tells you whether walking to two more counters and comparing is worth it. To learn where to find the mid-market and when exchanging is a better deal, read when to exchange.

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