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Free trader tools

Free Trading Calculators

8 calculators for forex, gold, indices and crypto. All of them run in your browser, none of them ask for an email, and nothing you type is stored or sent anywhere.

Before the trade

The three that decide what you're actually about to do. Size comes from your stop, not your habit; pip value turns pips into money; margin tells you whether the broker will even let you open it.

Position Size Calculator →
Work out the correct position size for a given account risk, stop distance and instrument.
Pip & Profit Calculator →
Pip value and profit or loss for any trade size on any supported instrument.
Margin & Leverage Calculator →
Required margin, free margin, effective leverage and the adverse move that triggers a broker stop-out, for any position size.

Judging an edge

Numbers you can't eyeball. A win rate means nothing without the reward:risk beside it, and a backtest result means nothing without knowing how much of it could be luck.

Risk / Reward Calculator →
Risk/reward ratio, risk and reward in pips and dollars, and the win rate a given ratio needs to break even.
Backtest Sample Size Calculator →
Whether a backtest result is statistically distinguishable from luck — the range your true expectancy could occupy, how often a no-edge strategy would score as well, and the number of trades needed for a verdict.
Prop Firm Challenge Calculator →
Probability of passing a prop firm evaluation, simulated across thousands of runs from the challenge rules and your own win rate, with the risk per trade that passes most often.

Planning and timing

What a fixed return actually compounds to, and when the markets you trade are genuinely active in your own timezone.

Compounding Calculator →
What a fixed percentage gain per period compounds to over time, with optional deposits.
Session & Kill Zone Times →
Live forex market hours and ICT kill zone times in New York, converted to the reader's own timezone, with countdowns to the next session.

Why these eight, and not forty

Most "free forex tools" pages are a wall of forty calculators, thirty-five of which are the same multiplication with a different label. These are the eight that answer a question a trader actually gets wrong.

Three of them cover the same trade from different angles, and it is worth being precise about the difference because conflating them is expensive. The position size calculator answers how big should this be — an output of your stop distance and your risk budget. The pip calculator answers what is this worth per pip — the conversion from price movement into money, which changes by instrument and is routinely got wrong on JPY pairs, gold and crypto. The margin calculator answers what does the broker hold, and how levered am I really — a question about the contract, not the risk. Margin is not risk. A trade risks what its stop costs, whatever the leverage.

A calculator is not a backtest

Every tool here operates on one trade, or on inputs you supply. None of them can tell you whether the setup you are sizing is worth taking — that answer only comes from a sample.

Which is the honest limit of a calculator page. You can compute a perfect position size for a strategy with no edge and lose money with excellent precision. The numbers that decide whether you make money — win rate, average R, worst losing streak, whether the result is distinguishable from luck — come from replaying real history and logging what happened. That is what the rest of this site is for, and how to backtest a trading strategy is the place to start.

Free, and free in the way that matters

No signup, no email capture, no usage limit, no trial. Each calculator runs entirely client-side, so nothing you enter — balance, position size, account details — leaves your browser. Every tool also has an embed snippet at the bottom of its page if you want to drop it into your own site or trading community.

The calculators size the trade. The backtest tells you to take it.

Replay real market history candle by candle and measure your edge across a proper sample — 38 markets, every timeframe. Free plan, no card.

Start backtesting free →
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Not financial advice. Backtesting does not guarantee future results.