Coming soon

Math-first tools for bonuses, wagering & RTP.

We’re launching a small set of calculators and guides to help users understand bonus terms, wagering requirements, and basic probability—without hype, promises, or “secret systems”.

Wagering Calculator Bonus Value Calculator RTP & EV Basics Withdrawals & Fees

18+ only. Gambling involves financial risk. SpinMath does not guarantee outcomes and does not provide financial or legal advice.

Transparent calculators

Clear inputs, simple outputs, and explanations in plain language. The goal is understanding, not persuasion.

Guides for real terms

Wagering requirements, max bet rules, excluded games, time limits—written like a checklist, not marketing.

International versions

English first. RU/PT/ES versions will be added in sections (/ru, /pt, /es) with proper hreflang later.

Affiliate disclosure

If we use affiliate links, we clearly label them and explain how the site earns money.