Forex Calculators: Position Size, Pip Value & Grid Spacing

Three free, client-side calculators — nothing you type leaves your browser, and none of them fetches a live market rate. For pairs that need one (JPY crosses, USD/CAD, USD/CHF, EUR/GBP), you supply the current rate yourself, the same way the worked examples in our guides do.

Why build calculators around numbers you type in rather than a live feed? Two reasons. First, privacy: a calculator that phones home with your account balance and risk settings is collecting exactly the data a trading site should not collect. Second, understanding: when you look up the current rate yourself and watch how the result changes as you vary one input at a time, the arithmetic stops being a black box. Each tool page shows the full formula it applies and works through a numeric example by hand, so you can verify every output on paper before you trust it with real position sizing.

All three calculators run entirely as plain JavaScript on the page — no accounts, no cookies set by the tools, no data collection, and they work the same whether you trade with our EAs, another system, or manually. They deliberately leave the final decision to you: a position-size result is an upper bound derived from the risk percentage you chose, not a recommendation, and none of the outputs constitutes investment advice.

• Position-Size Calculator — turn account balance, risk %, and stop-loss distance into a lot size
• Pip-Value Calculator — check what a pip is actually worth for your pair and lot size before you size a trade
• Grid Spacing Calculator — turn an ATR reading into recommended grid spacing, plus a grid-levels guide sized to your equity

The position-size and pip-value tools are also embedded inline in the risk management guide and lot sizes explained; the grid-spacing tool applies the formulas from the rule-based grid blueprint and dynamic grid trading guide. These standalone pages carry the same calculators plus the full explanation of the formulas behind them.