Betting calculators
Quick checks before (and after) you put money on anything. New to this? Read the 5-minute guide.
What do these odds mean?
Turn any price into a win probability and a payout.
Hedge calculator
Your team's price moved and you want to lock in a profit (or stop a loss) whichever side wins. Enter what you hold and today's prices; we show what to buy on the other side, or what selling now gets you.
| Option | You put in | If Your team wins | If Other team wins |
|---|---|---|---|
| Buy 100 of the other sidesafest | $36.59 | +$21.73 | +$21.73 |
| Buy 66 of the other side | $24.15 | +$34.17 | +$0.17 |
You put in $41.68 for your position (with Kalshi's fee). “Buy N of the other side” pays the same whoever wins; the free roll breaks even if they lose and keeps most of the upside. Selling at the bid is often about the same as buying the other side; pick whichever pays more. Prices move: use a limit order at the price you entered. Not advice.
Kalshi vs sportsbook: same team, which price is better?
Same bet, two places. Whoever pays more for the same outcome is the better price, before you even think about who wins.
Kalshi at 52¢ is 53.7% after fees; the book's is 54.5%.
Fair odds (remove the vig)
Enter both sides of a sportsbook line. We strip out the book's cut (the ) to show each team's true implied chance. Compare it to a Kalshi price.
How much should I bet?
A cautious version of the : bet more only when your is bigger, never more than 5% of your bankroll. No edge = $0.
Your win % is the hard part. If you're not sure, you don't have an edge yet: use Spot Angle's history and price gaps to estimate it, and stay small.