Pips, Lots, and the Language of Forex
Before you can size a position or calculate risk, you need fluency in the basic units of forex: pips, lots, and the math that connects them.
What Is a Pip?
A pip (percentage in point) is the smallest standard price movement in a currency pair. For most pairs, this is the fourth decimal place — 0.0001. If EUR/USD moves from 1.0850 to 1.0851, it has moved 1 pip. Brokers often quote to five decimal places (pipettes), where the fifth decimal is one-tenth of a pip.
For JPY pairs (USD/JPY, EUR/JPY), a pip is the second decimal place — 0.01. If USD/JPY moves from 149.50 to 149.51, that is 1 pip.
What Is a Lot?
A lot is a standardized unit of currency volume in forex:
- Standard lot: 100,000 units of base currency
- Mini lot: 10,000 units
- Micro lot: 1,000 units
- Nano lot: 100 units (not all brokers support this)
Calculating Pip Value
For USD-quoted pairs (EUR/USD, GBP/USD), pip value per lot is straightforward:
- Standard lot: $10 per pip
- Mini lot: $1 per pip
- Micro lot: $0.10 per pip
For USD-base pairs (USD/JPY, USD/CHF), the calculation differs slightly. For USD/JPY at 150.00, one pip = $10 / 150 = $0.0667 per pip per mini lot. Your trading platform handles this automatically — but understanding the math ensures you catch calculation errors.
The Risk Calculation That Actually Matters
This is the foundational math for position sizing: Risk ($) = Stop Loss (pips) × Pip Value ($) × Lot Size
Example: 30-pip stop loss on 0.5 standard lots = 30 × $10 × 0.5 = $150 risk. If your account is $10,000, that is 1.5% risk per trade — within a sensible framework.
Spread: The Invisible Transaction Cost
Every forex transaction has a spread — the difference between the bid price (what the market will buy from you) and the ask price (what the market will sell to you). If EUR/USD shows 1.0850/1.0852, the spread is 2 pips.
For a standard lot, a 2-pip spread costs $20. That is the immediate loss on entry. Over 100 trades per month, spreads alone can cost $1,000–$2,000. Managing transaction costs is a real edge component — not a minor detail.
Points, Ticks, and Pips — Clearing Up the Confusion
Ticks (used in futures markets) and points (used in indices) are similar concepts but not identical to pips. In forex, pip is the standard unit. When someone says EUR/USD "moved 50 points," they typically mean 50 pips in retail forex context. Context matters — confirm the unit when discussing trade results.
Before you can manage risk, you must be able to calculate it instantly. Pip math should become second nature — the mental calculation you run before every entry.