How pip value is calculated for commodity currencies

Direct answer

Pip value for commodity currency pairs is calculated from (1) the pair’s pip size in price terms, (2) the instrument’s contract size (units per lot), and (3) your account currency, which may require a conversion from the pair’s quote currency to your account currency.

Mechanics and definitions

A “pip” is a standardized price movement used to express changes in forex quotes. For most major FX quotes, a pip is often taken as 0.0001 of the quoted price; however, pip size can differ by instrument and by how a provider defines it. Treat pip size as an assumption you must confirm for the specific pair.

To compute pip value, start with a single pip price change:

• Let ΔP be the pip size in quote-price terms (example assumption: ΔP = 0.0001).
• Let Q be the trade size in units of the base currency (example: 1 standard lot is often 100,000 units; this is a convention—confirm your instrument specs).
• Let rate be the current market quote Base/Quote (for example, X/Y means base currency X quoted in quote currency Y).

If the pair is quoted as Base/Quote, then a one-pip move in price changes the position’s value in the quote currency by:

Pip value (in quote currency) = Q × ΔP

This is the most direct form: the pip value is “how much quote currency your position gains or loses for one pip of movement,” given the contract units.

Converting pip value into an account currency

Your account currency may differ from the quote currency. In that case, convert the pip value using an additional FX rate.

A common approach is:

• Compute Pip value in quote currency first.
• Then convert to Account currency using the exchange rate that expresses Quote/Account (or Account/Quote, depending on which side you need).

For example, if your account currency is A and the pip value is in Quote = C, then:

• If you have the market quote C/A, then Pip value (in A) = Pip value (in C) × (C/A).
• If you only have A/C, then Pip value (in A) = Pip value (in C) ÷ (A/C).

Commodity currencies do not change these mechanics. The difference is simply which currencies appear as base and quote, and therefore which conversion rate you need.

Evidence or example (with explicit assumptions)

Assume:

• Pair is Base/Quote = B/C.
• Pip size assumption: ΔP = 0.0001.
• Position size: Q = 100,000 base units (confirm for your exact instrument).

1. Pip value in quote currency C:

• Pip value (in C) = 100,000 × 0.0001 = 10 So one pip is worth 10 units of currency C for this trade size under these assumptions.

2. Convert to account currency A:

• If account currency is also C, then pip value stays 10 C.
• If account currency is A and you can obtain the rate C/A, then pip value becomes 10 × (C/A).
• If instead you only have A/C, then pip value becomes 10 ÷ (A/C).

Material limitation: pip convention and contract specs

Two adjustable inputs can materially change the result:

• Pip size (ΔP): Some instruments use pip definitions other than 0.0001 (for example, 0.01 or 0.00001). If ΔP is wrong, pip value scales linearly and your computed value will be wrong.
• Contract units (Q): If the provider’s lot size differs from 100,000 units, pip value changes proportionally.

Limitations and risks (what can fail)

1. Incorrect pip size: A frequent failure mode is using 0.0001 when the instrument’s pip definition is different.
2. Wrong base/quote orientation: Pip value formulas depend on whether the pair is Base/Quote and which currency is “quote.” Mixing up base and quote can invert your conversion logic.
3. Account conversion direction errors: If you use A/C where the formula expects C/A (or vice versa), the converted pip value can be off by a factor.
4. Rounding and decimal display: Pip value often involves decimals; providers may display values with rounding that can differ from your calculation.
5. Using mismatched rates: Converting pip value requires an exchange rate consistent with your measurement. Using stale or inconsistent rates creates mismatch between what you compute and what a platform shows.