Lot Size Calculator

A position size calculator for traders: plug in your account balance, the percent you're willing to risk, and your stop loss — get the right lot size for any forex pair, gold, silver, indices, or crypto. Free, no signup, and embeddable on your own site.

Inputs

Lot size

0.50

$ at risk

$100.00

SL in pips

20.0

Equivalent units: 50,000 · Pip value: $10/lot

Embed it on your site

Copy this and paste it anywhere. The widget is mobile-friendly and runs entirely in the browser.

<iframe
  src="https://tradejournalpro.net/embed/sizer"
  width="100%"
  height="540"
  style="border:0;background:transparent"
  loading="lazy"
  title="Position Size Calculator">
</iframe>

How it works

We compute pip value per standard lot for the pair you selected, then divide your $ risk by (SL pips × pip value). The result is the lot size that — if SL hits — costs exactly your risk %.

Why it matters

Wrong lot size is the #1 reason traders blow accounts. A 1% risk on EUR/USD ≠ 1% risk on XAUUSD — different pip values mean different lot sizes for the same dollar risk.

How lot size is calculated

Lot size = money at risk ÷ (stop loss in pips × pip value per lot). The money at risk is your balance times your risk percentage, so the only number that changes trade to trade is the stop.

EUR/USD example

$5,000 account, 1% risk = $50. Stop 25 pips, pip value $10 per lot. 50 ÷ (25 × 10) = 0.20 lots.

Gold (XAUUSD) example

$5,000 account, 1% risk = $50. Stop $10 away = 100 pips, pip value $10 per lot. 50 ÷ (100 × 10) = 0.05 lots.

Gold is where most sizing mistakes happen: a $10 stop on a 0.10 lot already risks $100. In our study of Telegram gold signals the typical stop was about $11, so size every trade to its stop. More on this in the pips and lots guide and the risk management docs. To check a whole signal at once, stop, targets and lot size, paste it into the signal checker.

Lot size questions

How do I calculate lot size?

Lot size = money at risk ÷ (stop loss in pips × pip value per lot). With a $5,000 account, 1% risk is $50; a 25-pip stop on EUR/USD, where one lot is worth $10 a pip, gives 50 ÷ (25 × 10) = 0.20 lots.

How big is a pip on gold (XAUUSD)?

This calculator uses $0.10 per pip on gold, the unit most gold signals use, so one standard lot (100 oz) moves $10 per pip. A $10 stop is 100 pips. If your broker counts gold in points ($0.01), divide its number by 10, or switch the calculator to entry and stop prices.

What lot size should I use for gold with a $5,000 account?

It depends on your stop, not the account alone. Risking 1% ($50) with a $10 gold stop gives 0.05 lots; with a $5 stop it gives 0.10 lots. Size to the stop each time rather than using a fixed lot.