Trading without doing the maths first is one of the fastest ways to lose money. Our calculator suite is built to take the guesswork out of the numbers that actually matter before you click buy or sell — how much to risk, how big the position should be, what each pip is worth, what the trade is likely to earn or lose, and how much margin it will tie up.
Each tool is designed around a single, focused question. Pick the one that matches what you’re trying to work out, plug in your numbers, and get an answer in your account currency in seconds.
Lot Size Calculator
The lot size calculator sizes a trade from your account balance, risk percentage (or fixed cash amount), and a stop-loss distance measured in pips. It returns the exact lot size that keeps your worst-case loss inside your risk rule, with the pip value conversion handled automatically regardless of your account currency. A trader with a £10,000 GBP account running a 1% rule on a EUR/USD long with a 25-pip stop would get a precise lot size rather than having to work backwards from pip values manually.
Position Size Calculator
The position size calculator does the same job as the lot size calculator but accepts a stop-loss price rather than a pip distance. Enter your entry and stop-loss levels on the chart and the calculator measures the distance for you. It suits traders who anchor stops to structure — a swing high, a moving average, a key level — particularly on indices, commodities and stock CFDs where thinking in prices is more natural than counting pips.
Pip Value Calculator
The pip value calculator shows what a single pip is worth on any instrument, at any lot size, in your account currency. Because pip values shift with the instrument, contract size, and the live exchange rate, the same 50-pip move produces very different cash results on EUR/USD versus GBP/JPY or USD/JPY. A trader with a GBP account sizing a 0.1-lot USD/JPY position with a 30-pip stop can use it to confirm the exact cash risk before placing the order.
Profit / Loss Calculator
The profit/loss calculator projects the cash result of a trade given an entry price, an exit price, a direction, and a lot size. Use it before a trade to check the risk-to-reward ratio in real cash terms, or after a trade to reconcile a closed position against a broker statement. A 0.5-lot long EUR/USD from 1.0800 to 1.0875 returns $375 in gross profit — the calculator gives that answer instantly for any instrument.
Margin Calculator
The margin calculator shows how much of your account balance a leveraged position will lock up as collateral. Enter the instrument, lot size, entry price and leverage, and it returns the required margin in your account currency alongside the notional position value. Before placing a 1-lot EUR/USD trade on a 5,000 EUR account at 1:30 leverage, for example, it would surface that the margin requirement is roughly 3,333 EUR — about 67% of the account, a useful warning before clicking.
What they all share
- Account-currency results. All outputs convert into the account currency you select — no more mental gymnastics for JPY pairs or non-USD accounts.
- Live FX rates. Currency conversions use up-to-date exchange rates so the numbers reflect real market conditions.
- Broad instrument coverage. Forex majors, minors and crosses, plus indices, commodities and popular stock CFDs.
- Mobile-friendly. Designed to work on a phone at the desk, on the train, or wherever you check your charts.
- No sign-up. Free to use, no account required.
Which one should I use?
The two questions traders ask most often are “how big should this trade be?” and “what is this trade worth?” Use this quick guide to pick the right tool:
- I know my stop in pips → Lot Size Calculator
- I know my stop as a price level → Position Size Calculator
- I want to know what a pip is worth → Pip Value Calculator
- I want to see the cash result of a trade → Profit / Loss Calculator
- I want to know how much margin a trade needs → Margin Calculator
Most traders end up using two or three of them together: size the trade first with the lot size or position size calculator, then double-check the margin and the pip value before placing the order.
Who they’re for
These tools are aimed at retail traders who already understand the basic terminology — pips, lots, leverage, stops — but want a fast, accurate way to do the maths without firing up a spreadsheet. They suit anyone trading forex, indices, commodities or CFDs, and they work just as well for someone running a strict 1% risk rule as they do for a swing trader sizing positions around chart structure.
These calculators are for educational purposes only. Trading leveraged products carries a high level of risk and may not be suitable for all investors.