Spread and Commission Calculator
Estimate the spread and commission cost of a completed trade, in account currency and pips.
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How it works
Spread cost = effective spread × pip value per lot × lots. Round-trip commission = commission per lot per side × lots × 2. Add them for the total, then divide by pip value for the full position to express the total in pips.
Worked example
At 0.50 lots and 10 per pip per lot, a 1.2-pip spread costs 6. Commission of 3.50 per lot per side adds 3.50 round trip. The total of 9.50 is equivalent to 1.90 pips.
What the result assumes
With a constant quoted spread and a stable mid-price, the entry and exit together cost one spread. Enter your effective combined spread when it varies. For a fee already quoted round trip, divide it by two before entering it. This model excludes minimum ticket fees, swaps, conversion fees and slippage.
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Find the win rate needed to cover an average loss and round-trip trading costs. Enter a gross average win and loss in the same units.