About

Who makes this

Lixbud is an independent project that publishes free trading calculators. It is run by one person, it has no office, no support desk and no relationship with any broker. Everything on this site is published under the project name rather than a personal name, which is why you will not find an individual's name anywhere on these pages.

If you want to reach the project, use the contact page.

What this site does

The home page is a lot size calculator — also called a position size calculator, a forex lot size calculator or a trading position size calculator. You give it four things you already know:

• your account currency and account balance,
• the percentage of that balance you are willing to risk on one trade,
• the instrument you are trading,
• your entry price and your stop loss price,

and it returns the position size in standard, mini and micro lots, the raw unit count, the money at risk, the value of one pip and the margin the position needs.

It recognises 594 instruments across six groups — currency pairs, metals, energies, indices, crypto and US stocks. That number is generated from the lists embedded in the page each time it loads, not a rounded claim, and the table on the home page shows where each group's symbol list comes from.

Why the three defaults are editable

If you have ever entered the same trade into two different lot size calculators and got two different answers, it is almost always one of three hidden defaults:

• Units per lot — the contract size. 100,000 for most currency pairs, but 100 oz for gold, 1,000 barrels for energies, 1 share for a US stock.
• Pip size — 0.0001 for most pairs, 0.01 for JPY-quoted pairs and many CFDs, 1 index point for indices.
• The currency rate — if the instrument is quoted in a currency that is not your account currency, the answer depends on a rate that most calculators pick for you without telling you.

Most calculators bury these three numbers. This one puts them on screen, under "Advanced", so you can match your broker's contract specifications exactly instead of trusting somebody else's default. That is the single thing this page tries to do better.

How it is built

The whole site is static files: one HTML page, one stylesheet and one script. There is no backend, no database, no user account and no build step. The arithmetic runs in your own browser.

Concretely, the calculator itself makes no network requests, sets no cookies of its own and writes nothing to your browser's storage: the numbers you type never leave your device to be calculated, because there is nowhere for them to go. Separately, these pages load one third-party script — Google Analytics, which counts visits and sets its own cookies. See the privacy policy for exactly what that does and does not cover.

What it deliberately does not do

• No live prices. There is no market data feed and no fake ticker. You type the entry, the stop and, if you need one, the currency rate.
• No signup, no login, no email gate, no popups.
• No batch mode, no export file, no saved history. One trade at a time. Use "Copy results" if you want to keep it.
• No advice. The page tells you how big a position is, never whether to take it.

Accuracy and your broker

The calculation is correct for the numbers you enter, but the defaults for contract size and pip size are industry conventions, not universal rules. Brokers differ. Before you trade, compare the contract specification shown on this page with the one in your trading platform, and change it under "Advanced" if they disagree. Required margin here is notional value divided by leverage and ignores commission, swap and your broker's own margin rules.

Nothing on this site is financial advice. Leveraged products can lose more than your deposit.

This page was last updated on 17 September 2026.