What Is Your Gambling Habit Actually Costing You?
Enter your weekly gambling spend and how many years to project to see your total losses — and what that same money would be worth if invested at 7% instead.
The real cost of gambling isn't just what you lose — it's the wealth you give up by not investing that money instead.
5–10%
typical house edge on sports bets (the 'vig') — your guaranteed long-run loss rate
89%+
of regular casino gamblers lose money over a sustained period
$500B
global gambling industry revenue — funded entirely by player losses
The true mathematics of gambling
The house edge is relentless
A 5% house edge means for every $100 wagered, you lose $5 on average. That doesn't sound catastrophic — but if you play through $1,000 in an evening (betting $10 rounds), you lose around $50 in expected value. Over a year of weekly sessions, those edges compound into thousands of dollars. The math is inescapable.
Investing the same money instead
The US stock market has returned approximately 7% annually after inflation over long periods. $50/week invested at 7% for 20 years = $109,000. This calculator shows you the precise wealth gap between gambling that money and investing it — the real cost isn't what you lose, it's what you give up.
Signs of problem gambling
Warning signs include: betting more than you can afford to lose, chasing losses to 'win back' money, lying to family about gambling, missing bills or borrowing to gamble, and feeling anxious or depressed about gambling outcomes. These are not character flaws — they're symptoms of a recognised addiction. Help is available and effective.
How the Gambling Loss Calculator Works
Formula
Total Loss = Weekly Spend × 52 × Years\nIf Invested = Annual Spend × ((1.07ⁿ − 1) ÷ 0.07)\nOpportunity Cost = Invested Value − Total LossThe calculator assumes weekly spending is lost entirely (consistent with long-run expected outcomes given house edges). Annual spend is then projected as if invested at 7% annually — a common long-run US stock market return estimate — using the future value of an annuity formula.
The opportunity cost is the difference: the wealth you could have built versus the money spent. This is the true financial cost of the habit over time.