Most beginners should start with a micro lot (0.01) or smaller, and only after practicing on a demo account. The right size depends less on the lot itself and more on how much you can lose on a single trade, which is commonly kept to around 1% of your account or less. Treat that as a cautious guideline, not a rule that guarantees safety.
Pick the risk first, then the lot size
Lot size is the output of a calculation, not a starting choice. The steps are:
- Decide the maximum amount you are willing to lose on the trade (for example, 1% of your account).
- Decide where your stop-loss goes, measured in pips.
- Divide your risk amount by the stop distance times the value per pip for your lot size.
If you need a refresher on pip value, see What is a pip in forex and how much is it worth?
Common lot sizes
| Lot type | Units of currency |
|---|---|
| Standard | 100,000 |
| Mini | 10,000 |
| Micro | 1,000 |
Pip value varies by currency pair and by your account currency, so check your platform's calculator rather than relying on a rule of thumb. Brokers also differ in which lot sizes and minimums they allow, so confirm the details on the official site of any broker you consider.
Recommended for youHow Forex Trading Works: Currency Pairs, Pips, Lots, Spreads and Orders ExplainedA worked example
Say you have an account of 1,000 units of your currency and risk 1%, which is 10. If your stop is 20 pips away, you want each pip to be worth about 0.50. Your platform's pip value tells you which lot size gets you there. The numbers are illustrative only; your own pair, account currency and broker will change them.
Practical cautions
- Leverage lets you open positions far larger than your account can safely handle. Being able to trade a size does not mean you should.
- Small accounts tempt people to oversize. Slow, small losses are easier to recover from than one large one.
- Use a demo account first to see how swings feel at your size. Compare options in Best Forex Demo Accounts Compared.
- Forex trading carries a high risk of loss, and many retail traders lose money. Only trade money you can afford to lose, and consider speaking with a licensed financial professional if you are unsure.
Related
- How to Start Forex Trading with Little Money, for micro accounts and position sizing
- How Forex Trading Works, for lots, pips and spreads explained
- How to Open a Forex Trading Account
- Forex Trading for Beginners
Keep reading
What to Learn First in Forex: A Step-by-Step Beginner RoadmapMost people who struggle early in forex don't fail because they picked the wrong indicator. They fa…
Best Free Forex Courses, Books and PDFs for BeginnersFree forex education is plentiful, but quality varies widely. Some of it is solid and neutral. Some…
Best Forex Demo Accounts Compared: Where to Practice Before Risking Real MoneyA demo account lets you place trades with virtual money in live market conditions. It is the safest…