Direct answer
Pip value in forex is the amount of money (in your account currency) you gain or lose when the market price moves by one pip. To calculate it, you combine (1) the pip size for the currency pair and (2) the position size (lot size). If your account currency is different from the pair’s quote currency, you also convert the result.
Mechanics: the inputs and the calculation
A pip is the smallest commonly quoted price step for many forex pairs. For most currency pairs quoted with 4 decimal places, 1 pip = 0.0001 of price movement; for pairs quoted with 2 decimal places, 1 pip = 0.01. The pip value turns that price movement into a currency value per pip for your trade size.
A practical way to reason about pip value is:
- Determine pip size (the price difference that equals 1 pip).
- Use your lot size to determine the size of the trade in base units.
- Compute the value of a one-pip move in the pair’s quote currency.
- Convert to your account currency if needed.
For many common pairs, a standard lot is often treated as 100,000 units of the base currency. With that assumption, the “quote-currency per pip” is commonly proportional to your lot size because a one-pip move scales the traded exposure.
Two-step comparison by whether your account matches the quote currency
Case A: account currency equals the pair’s quote currency.
- The pip value you compute can be used directly in account terms because one-pip profit/loss is already expressed in the quote currency.
Case B: account currency differs from the quote currency.
- You first compute pip value in the quote currency.
- Then convert that pip value into your account currency using an applicable exchange rate (the specific conversion rate depends on the conversion pair available in your pricing environment).
Example and independent checks
Consider a pair where 1 pip = 0.0001 and you trade a position with a known lot size.
- Start with the price movement: one pip means the price changes by 0.0001.
- Translate that into a money impact using the exposure implied by the lot size. The pip value increases linearly with position size: doubling the lot size doubles the pip value.
- If your account currency is not the pair’s quote currency, convert the result.
Independent checks you can apply:
- Linearity test: If you change lot size while keeping everything else the same, the pip value should scale proportionally.
- Pip-size test: If a broker quotes a pair with a different decimal structure (e.g., 2 decimals vs 4), the pip size changes, and so does pip value.
- Currency-match test: If your account currency matches the quote currency, no conversion is needed; otherwise, conversion is required.
Limitations and what can vary
Pip value calculations depend on conventions and instrument quoting:
- Pip size can vary by pair (decimal structure differs across instruments).
- Contract specifications can differ by broker/instrument (for example, how “standard,” “mini,” or “micro” are defined in units).
- Currency conversion for pip value depends on the rates available for converting from the pair’s quote currency to your account currency.
Because of these variables, the most reliable verification is to reproduce the calculation using the broker’s stated contract/lot definitions and the exact pip convention shown for the specific instrument, and confirm the outcome matches the broker’s pip value displayed for the same position size.