07.CALC // SIZER
Position Sizer
Risk-percent based contract sizing. Put in account size, risk tolerance, entry, and stop — get notional, contracts, and leverage.
INPUTS
Risk ($)
$10.00
Stop Distance
2.08%
Position Size
0.006250
Notional
$481.25
Implied Lev
0.48x
Usable Lev
0.48x
Margin Required
$1,000.00
Math: risk_$ = account · risk_%; size = risk_$ / |entry − stop|; notional = size · entry; lev = notional / account. Linear perps (USD-margined). Ignores fees + funding for sizing — keep risk_% modest to absorb them.