Data-driven utilities to help you manage your budget and visualize mathematical risk. Every tool runs in your browser; no personal data is uploaded.
Calculate the real Expected Value (EV) of any casino bonus. See if the wagering requirements make a promotion worth accepting.
Work out what a loyalty points balance is actually worth: redemptions available, value per point, and the reward returned per unit wagered.
Work out what a jackpot is actually worth per spin, and what it would have to reach to be worth playing.
Pick your payment method and what you are seeing, and get the specific check to run and who actually fixes it.
Eight questions on RTP, hit frequency, maximum win odds and bonus buys, using the real published figures from our game reviews.
Five hands, one decision each, graded against the published basic strategy chart for a stated ruleset, with a shareable score.
Simulate 2,500 attempts to clear a wagering requirement. See how often the balance is lost before the bonus is cleared.
Play hands and see every decision graded against the published basic strategy chart for your ruleset, with the expected value cost of each mistake.
Does a bad player at your table cost you money? Run thousands of shoes with optimal and typical seats and compare your own win rate, house edge, hands per hour and variance.
Convert between decimal, fractional, and American odds formats. Calculate implied probability and potential payouts instantly.
Run Monte Carlo simulations to visualize bankroll survival, EV, and the impact of volatility on your session.
Free self-assessment quiz to help identify potential gambling risk factors. Links to European support services.
A privacy-first dashboard to track your deposits, withdrawals, and net position across online and land-based venues.
Yes, every tool on GamblersGPT is 100% free with no registration required. We don't charge for access and never will.
All calculations run entirely in your browser. No financial data, bet amounts, or personal information is ever sent to our servers. Your privacy is guaranteed by design.
Our Odds Converter uses standard mathematical formulas used across the betting industry. Decimal, fractional, and American odds are converted using exact arithmetic — no rounding or estimation.
These tools are designed for educational and analytical purposes. They help you understand the mathematics behind gambling — expected value, probability, and volatility — so you can make more informed decisions. Always gamble responsibly.
In-depth guides on regulation, strategy, and betting analytics.
Plain-language definitions of key betting and regulatory terms.
Browse verified regulated operators with active licences.