GBPUSD Pip Value & Lot Size Calculator
Find the lot size that keeps a GBPUSD loss at your risk, with the pip value, margin and spread cost for a USD account. Cable usually needs wider stops, and the page shows what that does to your size.
- Lot size from risk
- Spread cost in dollars
- Margin by leverage
- Wider-stop table
- Contract (typical)
- 100,000 GBP
- Pip used here
- 0.0001
- Pip value, 1 lot
- $10.00
- Margin formula
- see section 1
Broker specification (change if yours differs)
Educational calculator for USD accounts. Results are estimates; check contract size, margin rules and rounding with your broker. See the risk disclaimer.
GBPUSD contract specification
Typical values; confirm them on your platform before you size a trade.
| Item | Value |
|---|---|
| Symbol | GBPUSD |
| Base / quote | GBP / USD |
| Contract size, 1 lot | 100,000 GBP (typical, verify) |
| Pip used on this page | 0.0001 |
| Pip value per lot, USD account | $10.00 |
| Margin formula | lots × 100,000 × price ÷ leverage |
| Smallest lot step | 0.01 at most brokers (verify) |
| Where to confirm | MetaTrader: Market Watch, right-click the symbol, Specification |
| Nickname | Cable |
Lot size for a fixed dollar risk
GBPUSD has a $10 pip per lot like EURUSD, but it usually moves further in a day, so stops tend to be wider. Wider stops shrink the lot size you can use for the same dollar risk. This table lets you read the answer without typing anything:
| Stop (pips) | $50 risk | $100 risk | $250 risk | $500 risk |
|---|---|---|---|---|
| 10 | 0.50 lots | 1.00 lots | 2.50 lots | 5.00 lots |
| 15 | 0.33 lots | 0.66 lots | 1.66 lots | 3.33 lots |
| 20 | 0.25 lots | 0.50 lots | 1.25 lots | 2.50 lots |
| 30 | 0.16 lots | 0.33 lots | 0.83 lots | 1.66 lots |
| 40 | 0.12 lots | 0.25 lots | 0.62 lots | 1.25 lots |
| 60 | 0.08 lots | 0.16 lots | 0.41 lots | 0.83 lots |
| 80 | 0.06 lots | 0.12 lots | 0.31 lots | 0.62 lots |
| 100 | 0.05 lots | 0.10 lots | 0.25 lots | 0.50 lots |
Read across: a 40-pip stop at a $100 risk allows 0.25 lots. Stretch the stop to 80 pips and the same risk allows 0.12. Same account, same risk, half the position.
What the spread costs you
The spread is paid the moment you enter, before price has moved. On GBPUSD it is usually wider than on EURUSD, and it widens around news and at the daily rollover. In dollars on a USD account:
| Spread (pips) | 0.10 lots | 0.50 lots | 1.00 lots |
|---|---|---|---|
| 0.5 | $0.50 | $2.50 | $5.00 |
| 1 | $1.00 | $5.00 | $10.00 |
| 1.5 | $1.50 | $7.50 | $15.00 |
| 2 | $2.00 | $10.00 | $20.00 |
| 3 | $3.00 | $15.00 | $30.00 |
A 2-pip spread on one lot is $20 you must recover before the trade is even. On a 20-pip stop, that is a tenth of your risk spent on entry.
Margin at the 1.3000 example price
Because the pound is worth more than the euro, one GBPUSD lot has a larger position value: $130,000 at 1.3000. Margin is higher than on EURUSD at the same leverage.
| Lot size | 1:30 | 1:100 | 1:200 | 1:500 |
|---|---|---|---|---|
| 0.10 lots | $433.33 | $130.00 | $65.00 | $26.00 |
| 0.50 lots | $2,166.67 | $650.00 | $325.00 | $130.00 |
| 1.00 lots | $4,333.33 | $1,300.00 | $650.00 | $260.00 |
| 2.00 lots | $8,666.67 | $2,600.00 | $1,300.00 | $520.00 |
Three tickets at 1.3000
Example prices, not live quotes.
Cautious
Small balance, low leverage.
Standard
A normal intraday stop.
Swing trade
A wider stop on a larger account.
Why Cable asks for more room
The nickname “Cable” comes from the transatlantic telegraph cable that once carried the sterling-dollar rate. Today the pair is known for sharper moves than EURUSD, especially around UK data and Bank of England decisions, so plan for a wider stop and a smaller lot rather than squeezing the same lot into a tighter plan.
If you hold through news, remember that a stop is not a guarantee. Fast markets can fill you beyond your price, so keep the risk percentage low enough to survive an unlucky fill.
A wider stop, sized in advance
On a pair that asks for wider stops, the lot size matters more. Lot Architect shows the size, margin and risk on your MetaTrader chart while you drag the stop, so a wider stop does not turn into a bigger loss.
- Size by risk %, risk in USD or fixed lots
- Drag Entry, SL and TP lines on the chart
- Shows size, margin, risk, reward and R:R
- MT5 and MT4 versions
Lot Architect is our own product, so we earn money if you buy it. It reads your broker’s specification from the platform. It does not guarantee profits.
Need a live account to read the specification from? Contract size, leverage and spread differ by broker and account type. This is our referral link to Exness; we earn a commission if you open an account through it, at no extra cost to you. It is not a recommendation to use high leverage, and availability depends on your country. See our affiliate disclosure.
GBPUSD calculator FAQ
What is the pip value of GBPUSD?
$10 per standard lot on a USD account, because the dollar is the quote currency. It does not change with the price.
Why is my lot size smaller than on EURUSD?
Usually because the stop is wider. The pip value is the same, so a wider stop at the same dollar risk means fewer lots.
How much margin does 1 lot of GBPUSD need?
Position value divided by leverage. At 1.3000 and 1:100, one lot needs $1,300. Check your broker’s margin rules, which can differ.
Is the spread included in my stop?
No. The spread is paid on entry. On a long, your stop is hit on the bid, so the spread can make a stop trigger earlier than the chart suggests.
Can I use this for a GBP account?
The numbers on this page are for USD accounts. For a GBP account, divide the dollar pip value by the GBPUSD rate.
Does it include commission?
No. If your account charges commission per lot, add it to the spread cost by hand.
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