Odds Calculator

Convert between probability, decimal odds, and implied odds for Polymarket positions.

Implied Probability
50.0%
Decimal Odds
2.00
Fractional Odds
1/1
Payout per $1
$2.00

How Polymarket Odds Work

On Polymarket, shares are priced between $0.01 and $0.99. A share priced at $0.50 implies a 50% probability of that outcome occurring. If the outcome resolves "Yes," each share pays out $1.00.

Your potential return at 50% probability: buy 100 shares at $0.50 each ($50 total), receive $100 if correct — a profit of $50 (100% ROI).

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