Make math effortless
No more spreadsheets or manual calculations. We handle wagering, profit and arbitrage math so you can focus on strategy.
About BTK – BetToolKit
BTK (BetToolKit) is a small, independent team of gambling, machine learning, big data and AI enthusiasts. We build precise, transparent calculators for casino and sports betting – without paywalls, fluff or dark patterns.
Who we are
BTK (BetToolKit) started as a side project by people who love both gambling math and clean UX. We have experience in online casinos, sports betting, odds modeling and software engineering, and we wanted a single place with trustworthy betting tools that actually explain what's going on under the hood.
Instead of flashy promises, we focus on clear numbers: wagering requirements, EV, arbitrage percentages and realistic risk. Every calculator is built with a data-first mindset so that recreational players, semi-pro bettors and pure math geeks can all benefit.
Gambling enthusiasts
We actually play – casino, sports and live betting – so we know which tools matter in real sessions.
Machine learning & AI
We use ML, big data pipelines and modern AI to validate assumptions, simulate sessions and improve UX.
Independent & transparent
No hidden agendas. We prefer simple explanations, open formulas and clear limitations of each tool.
Responsible by design
Our calculators highlight expected loss, not only potential wins, so you see both sides of every bet.
Our mission
We believe every player should understand the numbers behind casino bonuses and sports bets. BTK exists to turn complex formulas into fast, mobile-first tools – so you can make informed decisions in seconds.
Promote data-driven betting
From RTP-based expectations to surebet percentages, our tools are built to show real edge instead of marketing hype.
Support responsible play
Seeing expected loss in your own currency is a powerful reminder that gambling always carries risk.
How we build BTK
Behind the simple UI, BTK is powered by a modern stack: production-grade code, automated tests and data pipelines that simulate real betting behaviour.
Data, big data & simulations
We run large batches of simulated bets and casino sessions to sanity-check the outputs of our calculators.
- Monte Carlo style simulations for slot and bonus play.
- Expected value and variance tracking for different stake plans.
- Validation against historical odds and real-world bookmaker margins.
Machine learning & AI UX
AI helps us design better flows, spot edge cases and suggest presets that match how real bettors behave.
- Smart defaults based on common bonus and odds ranges.
- Contextual tips that explain why certain bets are +EV or –EV.
- Continuous improvements driven by anonymised usage patterns.
Why BTK exists
We created BTK after getting tired of slow, ad-heavy betting sites and calculators that hide how results are calculated.
Clarity over hype
You see the formulas, assumptions and limitations. No magic “win buttons”, only math.
Speed & mobile-first
BTK is optimized for quick checks during live betting or casino sessions on your phone.
No paywalls
Our core calculators are free to use. You don't even need an account to get value from BTK.
Who BTK is for
BTK is designed for anyone who wants to look at bets through a mathematical lens – from bonus hunters to casual players.
Casino & slots players
Use wagering calculators and RTP-based expectations to understand how demanding a bonus really is and how much you are likely to lose while clearing it.
Sports bettors & arbitrage hunters
Check bet profit, compare odds and quickly verify if a two-way surebet exists before you place stakes across bookmakers.
FAQ about BTK
No. BTK is an independent project. We may mention operators or markets when relevant, but our calculators are designed to work with any brand, as long as you enter correct odds and bonus terms.
Absolutely not. Gambling always includes risk. Our tools help you understand math and expected value, but outcomes are never guaranteed and you should only bet what you can afford to lose.
Yes. Our core calculators are free and available without sign-up. In the future we may add optional premium features, but the fundamental wagering and bet profit tools will remain accessible.