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Account & costs

Swap Calculator

Overnight financing on a held position, per night and over the expected hold.

Inputs it asks for
Account balance currency
Position size lots / units
Leverage ratio
Hold period nights
Formula shown · assumptions disclosed

What it computes

Overnight financing on a held position, per night and over the expected hold. The page states the equation, the units it expects and the rounding it applies, so the result can be reproduced by hand.

Where it sits in the chain

A calculator gives you a number. This one feeds the next: account to risk, risk to position size, position size to the trade, and the trade to expectancy, drawdown and risk of ruin.

See the performance tools →

Not live yet

This calculator is specified but not wired up in this build. The Position Size Calculator is the working template it will follow: inputs, live result, formula, worked example, assumptions and FAQs on one page.

Open the working example →

Method

Costs, slippage and non-USD conversion are handled by their own calculators rather than folded in silently here.

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Margin Calculator

Required margin for a position, and the effective leverage it puts on the account.

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Leverage Calculator

Exposure relative to equity, and why an affordable margin can still be reckless risk.

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Spread Calculator

The spread in currency terms, and as a percentage of the risk on the trade.

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Quantify the trade, then keep the record.