Direct answer
Pip value is the monetary change in your account caused by a one-pip move in the quoted currency pair. To calculate it, you (1) convert the pip size into the base-currency amount per pip using the contract’s lot size, then (2) express that amount in your account currency using the appropriate currency conversion. “Economic Growth” matters only insofar as it can influence exchange rates; pip value itself is a market-structure calculation.
Mechanism and definition
A “pip” is the smallest commonly quoted price increment for a forex pair (for most major pairs it is 0.0001, but the exact pip size can differ by pair). For a pair such as A/B, the quote format means:
- A is the base currency.
- B is the quote (counter) currency.
- A price move changes how much of A you effectively hold for the same nominal exposure.
Step 1: Convert one pip into base-currency exposure
Let:
- L be the lot size in base-currency units (e.g., 1 standard lot is a commonly used convention, but contract specifications can vary).
- P be the pip size in price terms (e.g., 0.0001 for many pairs).
For a move of +1 pip, the quoted price changes by P. The change in base-currency notional terms implied by a standard pip move is often represented by:
- base_change_per_pip = L × P
This converts “price movement” into “base-currency movement,” under the assumption that the contract uses L units as its notional base.
Step 2: Convert base-currency movement into quote-currency value
If base_change_per_pip is expressed in units of base currency, its value in quote currency is:
- quote_value_per_pip = (base_change_per_pip) × (price)
An equivalent way that many traders use avoids this intermediate: compute pip value directly using the contract direction and the pair price. The key is consistency: you must use the same definition of base, quote, and pip size.
Step 3: Convert into the account currency (cross-currency routing)
If your account currency equals the quote currency, the quote_value_per_pip is already in account currency.
If not, you convert using an additional FX rate. For example, suppose the quote currency of the trading pair is X, but your account currency is Y. You need a conversion that expresses X in terms of Y:
- pip_value_in_account = pip_value_in_quote × rate(X/Y)
This requires choosing the correct direction of the conversion rate. If you have rate(X/Y) available, multiply. If you only have rate(Y/X), then invert:
- rate(X/Y) = 1 / rate(Y/X)
Canonical calculator routing (how to check yourself)
A self-check is to build a single chain of currency conversions that takes you from:
- “one pip of the traded pair” expressed in its most natural value currency, to
- your account currency.
In practice, you pick the conversion rate(s) so the units cancel correctly. The units-cancellation check is often more reliable than memorizing a specific formula.
Evidence or example (with explicit assumptions)
Assumptions for this example (you can replace them with your own broker’s contract specifications):
- Pip size P = 0.0001.
- Contract uses L = 100,000 base units for 1 standard lot.
- You trade a pair where A is base and B is quote.
Example A: Account currency equals the quote currency
Pair A/B, account currency = B.
- base_change_per_pip = L × P = 100,000 × 0.0001 = 10 base-currency units per pip.
- quote_value_per_pip = base_change_per_pip × price. If price is 1.2345, then:
- quote_value_per_pip = 10 × 1.2345 = 12.345 quote-currency units per pip. That is also your pip value in account currency.
Example B: Account currency differs from the quote currency
Now assume the pip value computed in quote currency is V (e.g., 12.345 units in currency B), but your account is currency Y.
- pip_value_in_account = V × rate(B/Y) If instead you only have rate(Y/B), then:
- pip_value_in_account = V / rate(Y/B)
This routing is the “account currency bridge.” It is the same mechanism whether the economic reason for the move is “economic growth,” inflation, jobs data, or something else.
Limitations and risks (what can fail)
- **Pip definition varies. ** Some pairs use different pip sizes than 0. 0001. If you assume the wrong P, the pip value will be systematically wrong. 2) **Contract specifications can differ.