KoboFX

Position Sizing: Matching Lot Size to Your Risk

SchoolElementary01/01/2026
Portrait of Iriss Lee
By Founder & Editor3 years trading forex. Writes every KoboFX guide and review. Full profile →

Risk warning: Lot size controls risk more than entry does. This is education, not financial advice.

Position sizing means picking the right lot size so your risk fits your stop loss.

Two traders can use the same stop, but the one with a bigger lot loses more.

MICRO LOT−$2same 20-pip stopSTANDARD LOT−$200same 20-pip stop
Same chart, same 20-pip stop — different lots. Micro loses about $2. Standard loses about $200. The lot picks the loss, not the stop.

The simple formula

  1. Decide account risk — for example 1% of $10 = $0.10.
  2. Decide stop distance — for example 20 pips.
  3. Pick lot size so that 20 pips ≈ $0.10.
  • If 1 micro lot = $0.01 per pip → 20 pips = $0.20 (too big). Use smaller.
  • If 1 cent lot = $0.00 per pip → 20 pips = $0.02 (very small) — you can try a bit larger.

Most beginners use the wrong lot and the right stop. Flip it: use the right lot for your stop.

Learn pip values in Pips and Lots: The Two Numbers That Control Your Risk.

Why this matters for small accounts

A $10 account cannot afford standard lots. One 20-pip loss on a standard lot is about $20 — double your account.

Use a Cent account and micro/cent lots. See Account Types: Cent, Standard, and Which Fits a Beginner.

1. RISK$0.101% of $10÷2. STOP20 pipsyour distance=3. LOT≈ $0.01 / pipmicro too big, cent fits20 pips × $0.01 ≈ $0.10 riskstandard lot 20 pips ≈ $20 — double the account
Risk $0.10 across 20 pips means each pip may cost about $0.01. Micro gives $0.01 per pip — too big. Cent gives $0.00 — room to grow. Size to the stop, not hope.

For funding, see How to Deposit from GTBank and Access Bank and USDT via Binance P2P.

Bottom line: Match lot size so your 20-pip stop equals $0.10 (1% on $10), or you risk a small stop costing big money. Related guides: Forex Funding and Payments, Starting Forex as a Beginner.