Forex Broker Cost Calculator: Compare 32 ASIC Brokers

How to use this calculator

Start by entering the standard lots traded in a typical month and picking the account style. Raw ranks brokers on our measured 8-pair average spread plus their published round-turn commission; Standard ranks commission-free accounts on their EUR/USD spread alone. Every broker name links to its full review, and brokers we cannot rank fairly appear beneath the table with the specific reason. The raw ranking is the starting point I would use because it captures the cost you actually pay on a like-for-like basis.

Volume is the input that changes the order, and I'd call it the lever that matters most. Commission is a fixed per-lot cost while spread cost scales with the spread itself, so a broker with a tight spread and higher commission overtakes a cheaper-commission rival as volume grows. Run your own number rather than accepting a ranking computed at someone else's, because the broker that wins at 5 lots a month is rarely the one that wins at 50.

How the costs are calculated

Monthly cost = (average spread in pips x pip value at the volume entered) + (round-turn commission per lot x lots). Spread figures come from our May to June 2026 8-pair measurement (rolling 24-hour captures, IceFX SpreadMonitor, London VPS); commissions come from each broker's published schedule, and USD-denominated commissions convert at current rates, marked with an asterisk in the table. The full capture method is on our methodology page, and I would read it before you rely on a single row of the table for a funding decision.

Pip value uses EUR/USD as the proxy for the 8-pair average, since the measurement basket is USD-quoted majors; that keeps the conversion honest without inventing a per-pair volume split, and it's the choice I'd make. Where a broker prices differently across platforms, the table footnotes it rather than averaging incomparable schedules, so you can compare like with like.

What the ranking does not include

Three real costs sit outside this table, and I'd be remiss not to mention them. Overnight financing (swap) varies by broker, direction and holding period, and matters only for positions you hold past rollover. Currency-conversion fees apply when funding an AUD account from elsewhere or trading products settled in other currencies, so the true cost of entry can shift before a single trade is placed. Inactivity and withdrawal fees vary by broker and usage pattern. Each is covered in the individual broker reviews rather than baked into a single number here.

The ranking also excludes execution quality, and it matters: slippage on a fast market can cost more than the spread itself, and I'd call that the hidden cost that catches traders out. Our lowest spread broker guide pairs the same measured spreads with execution-speed testing for the brokers where we have it, so you can see which brokers deliver on both fronts.

Raw vs standard accounts in this tool

Raw accounts quote near-interbank spreads and charge an explicit commission; standard accounts widen the spread and charge none. At A$13.90 per pip per standard lot, the crossover point is simple arithmetic: a commission of A$7.00 round-turn equals about half a pip, so a raw account wins whenever its spread advantage over the standard alternative exceeds that. High-volume traders almost always land on raw pricing, which is why it is the default view, and that's the calculation you should run for your own volume. The lowest commission broker guide covers the commission side of that trade-off, and the overall picks across all costs are in the best forex brokers in Australia guide.