For a 100,000 EUR standard lot, one EUR/USD pip represents USD 10. An advertised minimum spread is not a typical spread or a measured spread during your trading session. Separate these measures before calculating costs.
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Request the same account, platform, trade size and observation period from each firm. Add both sides of commission, financing, conversion and execution effects. Our calculator models an input scenario; incomplete records cannot establish the cheapest broker.
For the standard 100,000-EUR EUR/USD contract, 0.1 lots has a USD 1 pip value. With a 0.8-pip spread, the spread component is USD 0.80. Add both sides of commission and any minimum charge separately.
A 0.1-lot round trip with USD 3.50 commission per lot per side adds USD 0.70, giving USD 1.50 before financing and slippage. This hypothetical calculation makes spread-only and commission accounts comparable without treating a minimum advertised spread as a measured average.
