Free for traders

Free Trading Tools

Every Orion RFX calculator in one place. Size a position, stress-test a strategy, plan a prop-firm run, project growth and see which sessions are live - all in your browser. No signup, no email wall, no data sent anywhere.

9 calculators & clocks · 24 pip-value tools · £0 forever

The calculators

Each tool has its own page with worked examples and a plain-English explainer. Pick one to get started.

Free

Position Size Calculator

Turn a risk percentage and stop-loss distance into the exact lot size for the trade. The first number every trader should run before clicking buy.

Open calculator Free

Risk-of-Ruin Calculator

Enter your win rate, reward-to-risk ratio and risk per trade to estimate the long-run probability of blowing the account. A reality check for any strategy.

Open calculator Free

Prop-Firm Pass Calculator

"Would you pass FTMO?" Map your account size, profit target and average daily gain against the published challenge rules to see how the maths stacks up.

Open calculator Free

Forex Compounding Calculator

Project how an account grows from a starting balance, a return rate per period and a time horizon. Watch the curve build with a period-by-period table.

Open calculator Free

Drawdown Recovery Calculator

See the gain it takes to climb back from a loss. A 20% drawdown needs a 25% gain; a 50% drawdown needs 100%. The clearest argument for protecting your downside.

Open calculator Free

Live Forex Sessions Clock

A real-time view of Sydney, Tokyo, London and New York - which sessions are open right now, when the next one starts, and where the high-volatility overlaps sit.

Open the clock Free

Forex Margin Calculator

See how much margin a position locks up from lots, leverage and contract size - and why margin is not the same thing as risk.

Open calculator Free

Prop-Firm Daily Loss Calculator

Know your remaining buffer today, how many losers you can absorb, and the risk per trade that survives a streak without breaching the daily limit.

Open calculator Free

Monte Carlo Drawdown Simulator

Reshuffle your strategy's trades 2,000 times to see the range of drawdowns a single backtest hides - the same idea Nebula applies to every champion.

Open simulator
24 pairs

Pip Value Calculators

Know exactly what a pip is worth in your account currency before you size up. We have a dedicated calculator for every major and cross - jump straight to your pair:

EUR/USDGBP/USDUSD/JPYAUD/USDUSD/CADEUR/JPY

Common questions

Are these trading tools really free?
Yes. Every calculator and the sessions clock run entirely in your browser. There is no signup, no payment and no account data sent anywhere - the numbers you type never leave your device.
Do I need an account or to install anything?
No. Open any tool's page and start typing. Nothing to download, no login, no email. They work on desktop and mobile.
How do I calculate forex position size?
Multiply your account size by your risk percentage to get the cash at risk, then divide that by your stop-loss distance in pips multiplied by the pip value per lot. The Position Size Calculator does it for you instantly.
What is risk of ruin?
Risk of ruin is the statistical probability that a string of losing trades wipes out your account, given your win rate, reward-to-risk ratio and how much you risk per trade. The Risk-of-Ruin Calculator estimates it from those inputs.
Does the prop-firm calculator guarantee I'll pass?
No tool can promise a challenge result. The Prop-Firm Pass Calculator simply maps your inputs against a firm's published rules - for example FTMO's 10% profit target, 5% daily loss limit, 10% maximum loss and minimum trading-day requirements - to show you what the maths implies. Your actual outcome depends on your trading.
Which forex session is the most active?
The London–New York overlap (roughly 13:00–17:00 UTC) typically sees the highest volume and tightest spreads on major pairs. The Live Sessions Clock highlights it in real time.
These tools are for education and planning only and are not financial advice. Trading carries a significant risk of loss. Please read our full risk disclosure before acting on any output.
From manual to automated

Done running the numbers by hand?

Nebula by Orion RFX is a no-code EA builder that evolves trading strategies with a genetic optimisation engine and deploys them as one-click Expert Advisors for MT4 and MT5. The same risk discipline these calculators teach you - built into the system.

Explore Nebula

Pip value calculators by pair

One page per pair, with the pip value worked for your lot size and account currency.

Get started

Put a tested system on your own MetaTrader.

Nebula searches, stress-tests and grades trading systems on your own machine - then deploys the survivors to MT4 or MT5. The free tier is the full engine, forever.

Start free - no card See pricing

Or browse the ready-made systems library →

  • Free tier, no card - build, test and make one real deploy before you pay anything
  • Runs on your own PC or Mac - your MT4/MT5 account stays with your broker
  • 14-day cooling-off on any purchase before activation, in line with UK consumer law
  • A real person answers - Ross, the founder, via contact or Discord
  • Real reviews - Nebula on Trustpilot

Reviews on Trustpilot: Nebula & tools (Orion RFX) · private mentoring (Pip Surfing Society) · Trading carries risk; past performance does not guarantee future results.