Tools
Betting calculators
Four quick checks before 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.
52.4%
what the price says
Profit on $100
$90.91
if it wins
Same as
1.91 decimal
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.
Your win % (optional)
Book pays on $100
$83.33
Kalshi pays on $100
$86.06
after fee
Better price
Kalshi
—
add your win % to see this
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.
Team A
Team B
Team A fair chance
58.0%
fair odds -138
Team B fair chance
42.0%
fair odds +138
3.5%
built into these prices
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 = $0.
Bankroll ($)
Your win %
Price
Suggested bet
$13.75
1.4% of bankroll
Your edge
5.0%
profit per $1, on average
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.