Bankroll & Budget Calculator

Setting a budget is the single most important thing you can do before you play, and this calculator helps you set one with your eyes open. Tell it your bankroll, your bet per round and the game, and it simulates thousands of sessions to show how long the money is likely to last, how often it disappears entirely, and what an average session costs you.

Treat the numbers as the price of entertainment, not an investment forecast. The house edge means that, played long enough, a bankroll trends toward zero — the question this tool answers is how quickly, and how bumpy the ride is likely to be.

Expected session length is the typical number of rounds before your bankroll runs out or you hit a limit — half of sessions will run shorter, half longer. Chance of losing it all (risk of ruin) is how often the simulated sessions end with nothing left; the bigger your bet relative to your bankroll, the higher this climbs. Expected loss is the average you walk away down across all runs, and typical end balance shows where a middle-of-the-road session finishes. If the risk of ruin looks high, lower your stake or shorten your session — both move the numbers in your favour.

The bet-to-bankroll ratio is everything

The fastest way to lose a bankroll is to bet too big relative to its size. Stake C$10 a spin on a C$100 budget and a single cold streak wipes you out in minutes; drop to C$1 a spin and the same budget gives you ten times the playtime and a far lower risk of ruin. As a rough guide, keeping each bet to 1–2% of your bankroll stretches a session and smooths out the swings.

This calculator makes the trade-off concrete. Nudge the bet size up and down and watch the expected session length and risk of ruin move in opposite directions. There's no 'correct' answer — only the level of risk you're comfortable paying for your entertainment.

Use stop-loss and win goals — and actually stick to them

A stop-loss is a line you draw in advance: when your bankroll falls to this point, you walk away. A win goal does the same on the upside — bank the profit and stop. Setting both in the calculator shows how they shorten sessions and cap the damage, which is exactly the point. Limits only work if you decide them while you're calm, not mid-session when emotions are running.

If you ever feel you can't stop, or you're chasing losses, that's the signal to step away for good. In Ontario you can reach ConnexOntario free, 24/7 at 1-866-531-2600, and the Responsible Gambling Council (responsiblegambling.org) offers help and tools across Canada. There's no shame in using them — the smartest players know when to fold.

Worked example: C$100 budget at C$1 a spin

You bring a C$100 bankroll to a 96% RTP slot and bet C$1 per spin. The house edge is 4%, so each spin costs about 4 cents on average. Spread across C$100, the expected drift means your money lasts a good while — the simulations might show a typical session of roughly 250–300 spins before the budget is gone or you stop.

The expected loss over a long session lands near the house edge applied to your total turnover, but variance dominates the short run: plenty of simulated sessions end up, some end flat, and the unlucky tail busts early. Set a stop-loss at C$60 and a win goal at C$150 and the picture tightens — sessions get shorter, the worst-case loss is capped at C$40, and you lock in profit on the good runs. That's a budget working as designed.

Glossary

RTP

Return to Player — the percentage of total stakes a game pays back on average over the very long run; 96% RTP means a 4% house edge.

House edge

The casino's built-in mathematical advantage on every bet, equal to 100% minus the RTP.

Volatility

How much results swing around the average — low volatility pays small and often, high volatility pays rarely but big.

Wagering requirement

The total turnover you must bet before bonus funds (and sometimes winnings) can be withdrawn, usually written as a multiplier like 35×.

Expected value (EV)

The average outcome of a bet or bonus if it were repeated many times — positive favours you, negative favours the house.