How can I compare total trading costs between two forex brokers?

To compare total trading costs, look beyond headline spreads or marketing slogans. First, check average spreads for the pairs you trade most, not just minimums, and convert them into a cash value per lot or per typical position size. Then include any explicit commissions, adding spread cost and commission together for a full round trip. Factor in other elements like typical slippage, swap rates for positions you hold overnight, and any deposit, withdrawal, or inactivity fees relevant to your style. Testing both brokers on demo or small live accounts during similar market conditions can reveal real‑world differences. Ultimately, choose the broker that offers the best overall combination of cost, execution quality, regulation, and service rather than focusing on a single fee component.