STRATINATOR

Futures Position Size Calculator

Size contracts so dollar risk stays within your budget.

Position size

Automatically calculated from your risk settings. Type a number to override; use the Auto button to resume automatic calculation.

Perfect fit — uses the full risk budget.

Enter a positive stop distance.

Contract too large for this risk budget.

Stop is not a whole multiple of the tick size ( pts).

Risk / contract
Actual risk
% of account
Unused budget
Stop ()
Instrument
$/point
Tick size
$/tick
Ticks/point

Account and risk settings

Risk input
Risk budget

Target and reward

R multiple
$ at target
Breakeven win

Stop size table

STOP LADDER ·

Range is invalid — check that From ≤ To and Step > 0.

Row count capped at 500.

Contracts and risk by stop distance
Stop (points) Stop (ticks) Contracts Risk / contract ($) Actual risk ($) % of account

About this calculator

What it does

Sizes futures positions so a trade's dollar risk stays inside your risk budget. Pick an instrument, set your account size and risk, enter a stop — it returns the number of contracts, or lets you set contracts and see the resulting risk. Built for quick use alongside your charts during the session. It ports (and fixes) a battle-tested spreadsheet; the math is verified by 1,814 automated checks on every page load.

Your data

Everything runs in your browser. Nothing you enter is sent, stored, or seen by any server — there are no accounts, no analytics, no cookies. So you don't have to re-enter your settings each time, the app saves them (account size, risk, instrument, stop) in your browser's local storage — a small store on your device that only this site can read and that never leaves your machine. Clear it anytime via your browser settings. The “Copy link to this setup” button builds a URL that encodes your current inputs (instrument, account size, risk, stop) — those values leave your device only if you choose to send that link to someone. Opening a shared link applies its settings and immediately removes them from the address bar.

Who built it

A Stratinator tool. Not financial advice — position sizing math only; trading futures involves substantial risk.