FREE TOOLS / CONTRACT RISK
Futures position-size calculator.
Choose a futures contract, define a stop distance, and calculate theoretical risk before a trade. Uses standard CME contract specifications, not live prices or broker margin requirements.
Risk summary
LIVE CALCULATIONMaximum whole contracts within the stated theoretical risk budget:
contracts
Runs entirely in your browser; no account data is stored or sent.
How the math works
Risk budget = account balance × risk percentage. Stop exposure per contract = the stop distance rounded up to whole ticks × tick value. Planned cost per contract includes the round-trip fee and a chosen slippage allowance. The result is the number of whole contracts whose estimated total risk stays inside the specified budget.
Risk estimates are not guarantees. Stop orders can fill worse than their intended prices, and losses may exceed account deposits.
Contract specification sources
- CME Group — Micro E-mini FAQ
- CME Group — E-mini S&P 500 specifications
- CME Group — E-mini Nasdaq-100 specifications
These links are for verification. Figures should be reviewed against the current official contract specifications before reliance.