What is a Lot in Forex?

What’s a Lot in Forex Trading?

In forex, trades are made in specific amounts called lots—these represent how many units of currency you're buying or selling.

A lot is simply a standardized trading size. When you place a trade on your platform, it’s quoted in lots, much like buying eggs in a carton.

Think of it this way:

When you buy eggs, you don’t usually buy them one by one—you get a carton of 12. Similarly, in forex, you trade in batches called lots.

Types of Lot Sizes

Some brokers show position size in lots, while others show the exact number of currency units.

Why Lot Size Matters: Pips & Profits

As you might remember, currency price changes are measured in pips, which are very small movements in price. Because these changes are so tiny, trading larger lot sizes allows traders to see meaningful profits (or losses).

Let’s look at how pip values change based on lot size using a standard lot of 100,000 units.

Pip Value Examples (Standard Lot)

• USD/JPY at 119.80:
  (0.01 ÷ 119.80) × 100,000 = **$8.34 per pip**
• USD/CHF at 1.4555:
  (0.0001 ÷ 1.4555) × 100,000 = **$6.87 per pip**

For pairs where USD is the quote currency, a second step is needed:

• EUR/USD at 1.1930:
  (0.0001 ÷ 1.1930) × 100,000 = 8.38 → 8.38 × 1.1930 = **$10 per pip**
• GBP/USD at 1.8040:
  (0.0001 ÷ 1.8040) × 100,000 = 5.54 → 5.54 × 1.8040 = **$10 per pip**

Pip Value by Lot Size

Your broker may use slightly different methods, but they will usually calculate pip values for you based on real-time prices.

What Is Leverage in Forex?

You might be wondering: How can I trade $100,000 if I only have $1,000?

That’s where leverage comes in. Think of it like a loan from your broker that allows you to control a large position with a relatively small deposit.

Let’s break it down:

• If your broker offers 100:1 leverage, that means you only need 1% of the trade size as margin.
• To open a $100,000 trade, you only need $1,000 in your account.
• That $1,000 is called margin—it’s not a fee, just a deposit held while the trade is open.
• If your account equity falls below that required margin, your broker may automatically close your trade to prevent deeper losses (called a margin call or stop out).

Example

Say you want to buy 1 standard lot (100,000 units) of USD/JPY with 100:1 leverage.

• Margin required: $1,000
• As long as your account equity stays above $1,000, your trade remains open.
• If your trade loses too much and equity drops below $1,000, your broker may close it to protect you from a negative balance.

Leverage magnifies both profits and losses, so it’s crucial to understand how it works.

🔍 We’ll cover margin trading in-depth later. It’s essential reading if you want to avoid blowing up your account.

How to Calculate Profit and Loss

Now that you know pip values and leverage, let’s look at calculating profits and losses.

Example: Buying USD/CHF

• Entry price (Ask): 1.4530
• Exit price (Bid): 1.4550
• Pip gain: 1.4550 – 1.4530 = 20 pips
• Lot size: 1 standard lot (100,000 units)

Use the formula:
(0.0001 ÷ 1.4550) × 100,000 = $6.87 per pip
Then:
$6.87 × 20 pips = $137.40 profit

Quick Tip: Bid/Ask Spread

• When buying, you enter at the Ask price
• When selling, you exit at the Bid price
• The difference between the two is the spread, which is a cost you pay when opening and closing trades

Up Next: Forex Lingo Recap

Next, we’ll summarize all the forex jargon you’ve just learned to help you speak like a pro!