How do I convert American odds to decimal?

For positive American odds (e.g. +150), divide by 100 and add 1 → 2.50 decimal. For negative (e.g. −120), divide 100 by the absolute value and add 1 → 1.83.

What is implied probability?

The probability the odds suggest. Implied % = 1 / decimal odds × 100. Compare it to your own estimate — if you think the real chance is higher, it's a value bet.

How is a parlay payout calculated?

Multiply every leg's decimal odds together, then multiply by your stake. A $10 three-leg parlay at 2.00 × 1.80 × 2.50 returns $90.

Is sports betting legal in Canada?

Yes — single-event sports betting was legalised across Canada in August 2021. Ontario operates a regulated open market via iGaming Ontario; other provinces use provincial sportsbooks (PROLINE+, PlayNow, Mise-O-Jeu, ALC).

Betting Odds Calculator

A free betting odds calculator for Canadian sportsbooks. Convert between decimal, American and fractional odds, see implied probability instantly, and build a parlay payout in CAD with as many legs as you want.

Betting Odds Calculator

Parlay · decimal · American · fractional

CAD · 19+

Single bet

OddsStake (CAD)

Payout$52.50

Profit$27.50

Implied probability47.6%

2.10 dec · +110 US · 11/10 frac

Parlay

Parlay stake (CAD)

Combined odds—

Payout—

Implied probability—

FAQ

How do I convert American odds to decimal?: For positive American odds (e.g. +150), divide by 100 and add 1 → 2.50 decimal. For negative (e.g. −120), divide 100 by the absolute value and add 1 → 1.83.
What is implied probability?: The probability the odds suggest. Implied % = 1 / decimal odds × 100. Compare it to your own estimate — if you think the real chance is higher, it's a value bet.
How is a parlay payout calculated?: Multiply every leg's decimal odds together, then multiply by your stake. A $10 three-leg parlay at 2.00 × 1.80 × 2.50 returns $90.
Is sports betting legal in Canada?: Yes — single-event sports betting was legalised across Canada in August 2021. Ontario operates a regulated open market via iGaming Ontario; other provinces use provincial sportsbooks (PROLINE+, PlayNow, Mise-O-Jeu, ALC).