ForexFin
ForexFin
Nine tools, no signup. Pick the trading calculator for the job.
One form for the whole trade: position size, R:R, margin and risk — with the pair charted and your entry, stop and target drawn on it.
How many lots to trade so a stop-out costs only your planned risk.
What one pip is worth in your account currency, for any pair and lot size.
Capital required to open a position at a given leverage.
Estimated overnight financing cost from interest-rate differential.
R-multiple, pips at risk, pips at reward — from entry, stop, and target.
The largest risk per trade your win rate and average R can support, with half- and quarter-Kelly.
How much your broker's bid–ask spread really costs you per trade, day, and year.
One form, one plan: position size + R:R + Kelly check. Copy the summary or share via URL.
| Your question | Calculator |
|---|---|
| How many lots can I trade for my planned risk? | Position size |
| What is one pip worth on this pair, in my currency? | Pip value |
| How much margin will the broker hold? | Margin |
| What does holding overnight cost or pay? | Swap / rollover |
| What does the spread cost me per day and per year? | Spread cost |
| Is the target worth the stop? | Risk : reward |
| Is my risk per trade too high for my win rate? | Kelly |
| All of it at once, with the chart | Trade Architect |
| All of it at once, as a plan I can share | Trade Plan Builder |
Every calculator starts from the same few inputs: the currency pair, your account currency, and either a position size in lots or the risk you want to take. Some add leverage (margin), interest rates (swap), or entry, stop and target prices (risk : reward). Results are converted into your account currency at the latest ECB daily rate, so they are close estimates rather than tick-precise quotes. None of them include commission or slippage; add those from your broker's price list.
A $10,000 dollar account, risking 1% ($100) on a EUR/USD long with a 20-pip stop:
The Trade Architect does all three in one form and draws the levels on the chart.
Profit or loss = pips moved × pip value per lot × lots. A 30-pip win on 0.50 lots of EUR/USD in a dollar account is 30 × $10 × 0.50 = $150. For pairs whose quote currency isn't your account currency, the pip value changes with the exchange rate; the pip value calculator gives the current figure.
They don't tell you which trades to take. They answer the arithmetic that's easy to get wrong under time pressure: a lot size for the wrong account currency, a JPY pip taken as 0.0001, a margin figure at the wrong leverage. Running the numbers before each trade keeps risk at the level you chose, not the level the last trade left you at.
The currency pair, your account currency, and a position size or a risk amount. Margin needs leverage; swap needs the two interest rates; risk : reward needs entry, stop and target.
Pips × pip value per lot × lots. On EUR/USD in a dollar account, 30 pips at 0.50 lots is $150.
Margin rises in step with size: double the lots and the margin doubles. Higher leverage lowers the margin but not the risk.
Close estimates. Rates are the ECB daily reference rates, and commission, slippage and your broker's own swap rates aren't included.
No. All nine calculators work without signing up.
ForexFin's analytics work on your trade history: import MT4/MT5 by CSV, score every trade that has a stop in R, and see which setups, pairs and sessions carry your results. The journal is free; Trader adds behaviour flags and written retrospectives.