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Size a USD/CHF Trade Where the Dollar Is the Base Currency

Scenario: a 3,000-dollar account, 1 percent risk, USD/CHF at 0.9000, stop 20 pips.

Work it out. The risk amount is 30 dollars. For USD/CHF, profit is generated in Swiss francs, because the franc is the quote currency. One pip on a standard lot is 0.0001 times 100,000, which is 10 francs. To convert francs to dollars, divide by the exchange rate: 10 divided by 0.9000 gives 11.11 dollars per pip.

Risk per standard lot at a 20-pip stop: 20 times 11.11 is 222.2 dollars. Lot size: 30 divided by 222.2 is 0.135 lots, which rounds down to 0.13.

Actual risk at 0.13 lots: 0.13 times 222.2 is about 28.9 dollars.

Answer: 0.13 lots.

Notice that the dollar pip value here is higher than 10, because the franc is worth more than a dollar. For USD/CAD at 1.3500, the pip value goes the other way, about 7.41 dollars. Pairs with the dollar as the base currency need the division step, and the direction of the adjustment depends on whether the quote currency is stronger or weaker than the dollar.

A shortcut: pip value in dollars equals 10 divided by the pair's price, for pairs where the dollar is the base and the pip is the fourth decimal.

Practical step: compute the pip value of one standard lot of USD/CAD at 1.3500 and USD/CHF at 0.8800.

Correct, and this is a good one for people who mostly trade dollar-quoted pairs. The same logic applies to USDJPY, where one pip on a standard lot is 1,000 yen, so at 150.00 it is about 6.67 dollars.

One practical note: the pip value changes as the rate moves. If USDCHF goes from 0.9000 to 0.8500, the dollar value per pip rises from 11.11 to about 11.76. For short holding times it does not matter, but on a swing trade it is worth recalculating.

This tripped me up when I first started trading USDCHF alongside EURUSD. I used the same lot size on both, assuming a pip was worth about ten dollars everywhere, and couldn't understand why my losses on the franc were consistently a bit larger than planned. At the time the pair was near 0.92, so I was risking roughly 9% more per pip than I thought.

Answering the practical step, at USDCAD 1.3500 the pip on a standard lot works out to about 7.41 dollars, and at USDCHF 0.8800 it's about 11.36 dollars. The difference between those two is over 50%, which is a lot if you size by habit.

What fixed it for me was building a small sheet that takes the current price and gives the lot size for my fixed dollar risk and stop, rather than doing it in my head. On USDJPY it matters even more because the price level swings so much over a year, and I'd rather let the sheet do the division than trust myself at the open.

The sizing checks out, and it's a good example of why pip values differ from 10 dollars. With the franc as the quote currency, one pip on a standard lot is 10 francs, and converting at 0.9000 gives 11.11 dollars. So 30 dollars of risk with a 20 pip stop allows 0.135 lots, rounded down to 0.13, which risks about 28.90 dollars. A trader who assumed 10 dollars per pip would calculate 0.15 lots, risking about 33 dollars, 11 percent more than planned. Small differences like that add up over many trades, especially when the pip value assumption is never checked.

The practical step's answers: USD/CAD at 1.3500 gives 10 divided by 1.35, about 7.41 dollars per pip. USD/CHF at 0.8800 gives 10 divided by 0.88, about 11.36 dollars. As the franc strengthens, meaning USD/CHF falls, the pip value in dollars rises. As the Canadian dollar weakens, meaning USD/CAD rises, the pip value falls. So for pairs with the dollar as the base, the pip value changes with the exchange rate itself, which means the lot size for a given risk shifts over time. Recalculating with the current rate keeps sizing accurate.

The shortcut of 10 divided by the price is handy for USD based pairs, but it only works when the account is in dollars. For a euro account, the pip value in francs would need converting to euros using EUR/CHF instead. The general rule is always the same: compute the pip value in the quote currency, then convert to the account currency using the relevant exchange rate. Most platforms do this automatically in their position calculators, but understanding the steps makes it easier to catch errors and to size trades quickly when a calculator isn't available.

For yen pairs, the same logic applies with a different pip size. One pip on USD/JPY is 0.01, so a standard lot pip is 1,000 yen, and the dollar value is 1,000 divided by USD/JPY. At 150, that's about 6.67 dollars. The pip value thread with the self updating converter covers these formulas in a spreadsheet. Has anyone here made a sizing error because they assumed 10 dollars per pip on a non dollar quoted pair? It's a very common mistake, and hearing how others noticed it can help newer traders catch it before it costs them.