Odds Converter
Type odds in any format — decimal (the Canadian standard), American moneyline or UK fractional — and the other two update instantly, together with the implied probability and what a $100 bet would return.
Decimal vs American vs fractional — the same price, three languages
Decimal odds show your total return per $1 staked (2.50 returns $2.50 including the stake). American odds show either the profit on a $100 bet (+150) or how much you must bet to win $100 (-110). Fractional odds show profit relative to stake (3/2). None of them changes the bet itself — only how it is written.
The number worth internalizing is the implied probability: 1 ÷ decimal odds. It tells you how often the bet must win just to break even. If you think the true chance is higher than the implied probability, the price is worth a look; if it is lower, skip it. That single habit is the core of disciplined betting — along with a budget and limits. 19+, play responsibly.
Frequently asked questions
How do I convert American odds to decimal?
For positive American odds, divide by 100 and add 1 (+150 → 2.50). For negative odds, divide 100 by the absolute value and add 1 (-110 → 1.91). Decimal odds are the default at Canadian sportsbooks.
How do I convert decimal odds to American?
If the decimal odds are 2.00 or higher, subtract 1 and multiply by 100 (2.50 → +150). If they are below 2.00, divide -100 by the decimal minus 1 (1.91 → -110).
What is implied probability?
The win probability baked into the odds: 1 divided by the decimal odds. Odds of 2.50 imply a 40% chance. Because bookmakers add a margin, the implied probabilities of all outcomes in a market add up to more than 100%.
Which odds format is used in Canada?
Canadian sportsbooks display decimal odds by default, which show your total return per $1 staked. American (moneyline) odds are common on US-facing content, and fractional odds are the traditional UK format — all three describe exactly the same price.
What are fractional odds like 3/2?
They show profit relative to stake: 3/2 means $3 of profit for every $2 staked, which equals decimal 2.50 or American +150. They are rarely used in Canada but common in UK racing.
Why does the same bet show different odds at different sportsbooks?
Each book sets its own prices and margin. That is why comparing odds before betting matters — over time, consistently taking the best available price makes a real difference. Only compare licensed operators (AGCO / iGaming Ontario in Ontario). 19+.
Related
This tool is for information and entertainment only — it does not guarantee outcomes and is not betting advice. Odds change constantly; always confirm the live price at a licensed sportsbook. 19+ (18+ in AB, MB, QC). Play responsibly — ConnexOntario 1-866-531-2600.
Written and reviewed by
Martin Rossi
Editor-in-Chief · Online Casinos & Gambling
Martin leads the CasinosRankNow editorial team and reviews online casinos and sportsbooks licensed in Ontario. He focuses on AGCO regulation, payment security, and responsible gambling, and personally tests every operator before recommending it.