Terms of Use
Last updated 1 August 2026
Not financial advice
Options & Futures Calculator is a calculator. It computes what a strategy would be worth under the inputs you give it. It does not know your circumstances, it does not recommend positions, and nothing it displays is advice, a solicitation, or an offer to trade.
Options and futures carry substantial risk, including loss exceeding your initial outlay on short and leveraged positions. Decide with a qualified adviser, not with a payoff chart.
About the numbers
- Market data is supplied by third parties and may be delayed, incomplete or wrong. We show what we receive; we do not independently verify it.
- Model outputs — Greeks, implied volatility, probabilities — depend on assumptions that do not hold exactly in real markets. They are estimates, not measurements.
- Prices shown are indicative. They do not include commissions, fees, financing, assignment risk, or the spread you would actually pay.
We make no warranty that the figures are accurate or fit for any purpose, and we are not liable for losses arising from their use.
Accounts
You are responsible for keeping your credentials secure and for activity under your account. Tell us promptly if you believe it has been compromised.
Subscriptions
- Single-leg calls and puts are free. Multi-leg strategies require a Pro subscription.
- Subscriptions renew automatically until cancelled. Cancel any time; access continues to the end of the period you have paid for.
- Payment is handled by Stripe under their terms.
Acceptable use
Do not attempt to disrupt the service, circumvent its limits, or scrape it at a volume that degrades it for others. Programmatic access is available under a separate API agreement.
Changes
We may update these terms; the date above reflects the last change. Continued use after a change means you accept it. This site is operated by Knobugsoft LLC.
Contact
hello@optionsandfuturescalculator.com