Scorefio · free tools · no accountbeta

Three calculators
we needed ourselves.

Each one is a piece of the cost report on its own page. They run the same arithmetic the reports do, so a number here and a number in a report cannot disagree.

01

The tools

Units
Basis point calculator
bps to per cent to dollars at your size, both sides. Every cost in trading is quoted in the unit fewest people are fluent in.
Perpetuals
Funding cost calculator
Funding over a holding period at the settlement interval your symbol actually uses — which is not eight hours everywhere, whatever your backtest assumed.
Viability
Breakeven fee calculator
The cost level an edge survives at, per round trip and per side. The number to check before funding an account.
02

Or do the whole thing

A calculator answers one question about one number. Upload a trade list and every trade is costed against real fees, funding and fill drift, with a verdict and the levers that change it. Free, no account. See the worked examples first if you would rather read one than make one.