A micro lot is 1,000 units of currency, and the actual cost for a micro-lot trade will depend on the currency pair you are trading, as well on the spread and any per-trade commissions you’ll be paying when opening the trade. Let’s look at an example of how this works. A micro lot for the EUR/USD pair would be 1,000 units of euros. A one-pip move on the price of the EUR/USD would come to roughly 10 cents. You’d then need to factor in any per-trade commissions charged by your broker.