"Pip" is one of the first words every new forex trader learns — and one of the most misunderstood. It's the unit that turns a price move on a chart into an actual dollar figure in your account, which makes it the foundation for position sizing, stop losses, and risk management. Here's exactly what it means and how to calculate it.
What is a pip?
A pip (short for "percentage in point") is the standard unit of price movement in forex. For most currency pairs, a pip is the fourth decimal place — so if EUR/USD moves from 1.0850 to 1.0851, that's a one-pip move. The exception is any pair quoted in Japanese yen (like USD/JPY or EUR/JPY), where a pip is the second decimal place instead, because yen pairs are quoted with fewer decimal digits to begin with.
Some brokers quote prices to one extra decimal place beyond the standard pip — a 5th decimal for most pairs, or a 3rd decimal for yen pairs. That extra digit is called a "pipette" or fractional pip, and it's worth a tenth of a full pip. It gives slightly finer pricing, but position sizing and risk are still generally calculated in whole pips.
How to calculate pip value
Pip value is the actual money one pip is worth, and it depends on three things: the pip size for that pair, your position size (in units or lots), and the current exchange rate. The formula is:
Pip value = pip size × contract size × exchange rate
A standard lot is 100,000 units of the base currency, a mini lot is 10,000 units, a micro lot is 1,000 units, and a nano lot is 100 units. Multiplying pip value per standard lot by 0.1, 0.01, or 0.001 gives you the mini, micro, and nano lot value respectively.
Worked example: EUR/USD
EUR/USD has a pip size of 0.0001 and a standard lot of 100,000 units. Since the pair is quoted directly in USD, the calculation is straightforward:
0.0001 × 100,000 = $10 per pip, for one standard lot.
That scales down cleanly: $1 per pip for a mini lot, $0.10 per pip for a micro lot, and $0.01 per pip for a nano lot — which is why EUR/USD's $10-per-pip-per-lot figure is one of the first numbers most forex traders memorize.
Worked example: USD/JPY
Yen pairs work a little differently because the pip size is 0.01 instead of 0.0001, and the quote currency is JPY rather than USD, so there's a currency conversion step. At a USD/JPY rate of 151.50:
0.01 × 100,000 = ¥1,000 per pip, then ¥1,000 ÷ 151.50 ≈ $6.60 per pip, for one standard lot in a USD-denominated account.
That conversion step is exactly why pip value isn't a fixed number across all pairs — it moves with the exchange rate, which is also why traders recalculate it rather than relying on memory once real money and real stop-loss distances are involved.
Why pip value actually matters
Pip value is the bridge between a chart pattern and your account balance. Once you know what one pip is worth on your position size, you can work out exactly how much a given stop-loss distance will cost you in dollars — which is the entire basis of proper position sizing. Risking a fixed percentage of your account (commonly 1%) on a trade means solving for a lot size where (stop-loss distance in pips × pip value) equals that risk amount, not just picking a lot size that feels right.
This is also where prop firm traders need to be precise — daily loss and max drawdown limits are usually defined in dollars or account percentage, and both ultimately trace back to pip value times position size.
Skip the manual math
The formula above is simple, but doing it by hand for every trade — especially on cross pairs and yen pairs where a conversion step is involved — is where manual errors creep in. PipDesk's Pip Value Calculator runs this calculation live for any pair and lot size, using current exchange rates, so you get the exact per-pip dollar figure instantly instead of re-deriving it every time.