Odds converter
Type a price in one format and read it in every other, with the probability the bookmaker is implying.
Your price
Decimal accepts a comma too: 2,50 works like 2.50.
The same price, everywhere
Every price is a probability in disguise. Convert first, argue second — 2.50 means the bookmaker is telling you 40%.
Reading a price in any format
Odds are a probability wearing different clothes. Decimal odds — the European default — give the total return per unit staked: 2.50 pays back 2.50 for every 1 risked, stake included. Fractional odds quote the profit instead: 3/2 is three units of profit for two risked, the same 2.50. American odds say how much you win on 100 (+150) or how much you must risk to win 100 (−110). Hong Kong, Malay and Indonesian are the Asian-market formats, and they matter because the sharpest prices often live there.
The number worth reading is the last one. Implied probability is 1 divided by the decimal price, and it is the only figure you can compare directly against your own estimate — two prices in different notations are no easier to compare than two probabilities. One caveat this tool cannot remove for you: implied probability still contains the bookmaker's margin, so add up every outcome in a market and you will pass 100%. For the market's honest opinion rather than its priced one, run it through the margin calculator.
One price, every format
- You type
- 2.50
- American
- +150
- Fractional
- 3/2
- Hong Kong · Malay · Indonesian
- 1.50 · −0.67 · +1.50
- Implied probability
- 40.00%
Change one and the rest follow. Watch the rounding: the familiar −110 is 1.9091 in decimal and implies 52.38%, while a displayed 1.91 implies 52.36% — a gap that looks like nothing and matters, because edges live in fractions of a percent.
Questions
Which format should I work in?
Decimal, unless you have a reason not to. Multiplying decimal prices gives you a parlay price directly, and dividing 1 by a decimal price gives you the implied probability — both operations are awkward in fractional or American notation.
Why does −110 come out as 1.909090…?
Because 100/110 is a repeating decimal. Rounded to two places it is 1.91, which is what every book displays, but the converter keeps the full precision internally so a chain of calculations does not drift.
What is the difference between Malay and Indonesian odds?
They are mirror images. Malay odds are positive for prices below 2.00 and negative above it; Indonesian odds are positive above 2.00 and negative below. Both express the same underlying price, and both convert to the same decimal.
Does the converter round my price?
Only on screen, to two decimals. Every calculation runs on the exact value you typed, so converting back and forth returns the price you started with.
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