Responsible gambling tools

Responsible gambling tools that put real numbers on your play: what it costs per hour and per year, how long a budget lasts, how likely a losing run is, and a private self-check. Free, and nothing you enter is saved.

Gambling Spend CalculatorGambling spend calculator: enter what you lose a day, week or month and see the total over a year, five years and ten years, plus the share of your pay.
Expected Loss CalculatorExpected loss calculator: enter your bet, spins per hour and the game's RTP to see what gambling costs you per hour, per session, per month and per year.
Session Budget CalculatorSession budget calculator: enter your budget, bet size, pace and RTP to see how long your money lasts on average, how much you will bet and when to stop.
Deposit Limit CalculatorDeposit limit calculator: enter your take-home pay, essentials and savings to get a sensible monthly, weekly and daily gambling deposit limit.
Gambling Play Time CalculatorPlay time calculator: enter how many hours a week you gamble to see the hours and days per year, your share of waking time and the expected yearly cost.
Gambling Session Reminder & TimerSession reminder: set a time and money limit before you gamble and get a check-in, a sound and a notification when either one is reached.
Losing Streak CalculatorLosing streak calculator: see the chance of losing several bets in a row on roulette, blackjack, baccarat or any bet, and how long your worst run is likely to be.
Gambler’s Fallacy SimulatorGambler's fallacy simulator: run a million roulette spins and see what really happens after five reds in a row. Black is no more likely than before.
Lottery Reality Check CalculatorLottery reality check calculator: how long would it take to win the lottery? Pick a game and how many lines you play to see the average wait and the cost.
Gambling Self-Assessment QuizGambling self-assessment quiz: ten private questions about the last 12 months, a score and a plain explanation, plus free support if you want it.

Responsible gambling tools: why numbers help

Most advice about gambling safely is sensible and easy to ignore. "Set a budget." "Don't chase losses." Everyone's heard it. What tends to change behaviour is seeing your own figures: that £20 a week is £10,400 over ten years, or that a £1 slot at full speed costs about £20 an hour on average.

Every tool here does one of those sums for you. None of them tells you to stop. They just make the price clear, so you can decide it.

Where to start

Before you play: the deposit limit calculator and the session budget planner.
While you play: the session reminder keeps an eye on time and money.
Looking back: the gambling spend calculator and the play time calculator.
Myths: the gambler's fallacy simulator and the losing streak calculator.
How am I doing? The self-assessment quiz takes two minutes.

Betting systems, tested

Doubling up after a loss feels clever until the streak that breaks it. The Martingale calculator shows how fast the bets grow, and the betting systems simulator runs Martingale, Fibonacci, D'Alembert and others over thousands of sessions. None of them beats the house edge. The RTP and house edge calculator shows what that edge is for each game.

The quick version

Gamble with money you've already decided you're fine losing. Set a time limit as well as a money limit. Don't top up when it's gone. Treat a win as luck, not proof. And if it stops being fun, that's the moment to take a break, not to play on until it's fun again.