Betting Odds Formats Explained: Decimal, Hong Kong, Malay and Indo Odds
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The same football market can look different from one sportsbook screen to another. One interface may show Decimal odds, while another uses Hong Kong, Malay or Indonesian (Indo) odds. The numbers can look unrelated, but they may describe the same underlying price and return relationship.
This guide explains betting odds formats as a reading and calculation exercise, not as a prediction tool. Every example uses a hypothetical RM100 stake only to show the maths. A displayed price does not guarantee a result, and market availability, rules, legal age and permitted participation vary by location and operator.
What are betting odds?
Odds are a way of displaying a price for a market selection. They help show the relationship between three separate ideas:
- Stake: the amount placed on a selection.
- Potential profit: the amount above the stake if the selection settles as a win.
- Potential total return: stake plus potential profit.
The format changes how that relationship is written, not what the result of a match will be. Before comparing football betting odds from two screens, first put both prices into the same format and confirm that the market and settlement rules are actually the same. The Asiabet33 Sports Betting Guide covers broader market and bet-slip checks.
How Decimal odds work
Decimal odds show the total return per unit staked, including the original stake. Multiply the stake by the decimal number.
- At Decimal 2.00, a hypothetical RM100 stake has a total return of RM200 if it wins: RM100 stake + RM100 profit.
- At Decimal 1.50, the same RM100 has a total return of RM150: RM100 stake + RM50 profit.
- At Decimal 3.00, the same RM100 has a total return of RM300: RM100 stake + RM200 profit.
The number is not a percentage. It is also not a promise that a selection will win. A lower Decimal price normally represents a shorter market price, while a higher Decimal price normally represents a longer one.
How Hong Kong odds work
Hong Kong (HK) odds show potential profit per unit staked. They do not include the returned stake. The relationship is simple:
> Decimal odds = Hong Kong odds + 1
For example, HK 1.00 is equivalent to Decimal 2.00. With a hypothetical RM100 stake, the potential profit is RM100 and the total return is RM200. HK 0.50 is equivalent to Decimal 1.50: RM100 would produce RM50 profit and RM150 total return if it wins.
Because the stake is excluded, do not read HK 1.50 as a total return of 1.50 units. It means 1.50 units of profit plus the original stake, which is equivalent to Decimal 2.50.
How Malay odds work
Malay odds usually sit between -1.00 and +1.00. The sign changes how the figure is read. The point is to keep the displayed number within a short range, not to signal a better or safer selection.
Positive Malay odds
A positive Malay number describes profit relative to the stake. Malay +0.80 is equivalent to Decimal 1.80 and HK 0.80. With a hypothetical RM100 stake:
- Potential profit: RM100 × 0.80 = RM80.
- Potential total return: RM180.
Negative Malay odds
A negative Malay number describes the stake needed to make one unit of profit. Malay -0.50 is equivalent to Decimal 3.00, HK 2.00 and Indo +2.00. With a hypothetical RM100 stake:
- Potential profit: RM100 ÷ 0.50 = RM200.
- Potential total return: RM300.
The negative sign is a display convention, not a loss sign. Still, always read the actual stake and return shown on the bet slip rather than relying only on mental conversion.
How Indonesian / Indo odds work
Indonesian or Indo odds use a positive/negative convention that mirrors the Malay display around Decimal 2.00.
Positive Indo odds
Positive Indo odds show profit relative to the stake. Indo +2.00 means that a hypothetical RM100 stake produces RM200 profit and RM300 total return if it wins. That is equivalent to Decimal 3.00 and Malay -0.50.
Negative Indo odds
Negative Indo odds show the stake needed to make one unit of profit. Indo -1.25 is equivalent to Decimal 1.80, HK 0.80 and Malay +0.80. With a hypothetical RM100 stake:
- Potential profit: RM100 ÷ 1.25 = RM80.
- Potential total return: RM180.
An Indo minus sign therefore does not mean the selection automatically loses. It tells the reader which calculation convention the screen uses.
Decimal vs Hong Kong vs Malay vs Indo odds
The table uses two equivalent prices. Values are rounded where a format normally shows two decimals.
| Equivalent Decimal price | Hong Kong | Malay | Indo | How a RM100 winning stake is read |
|---|---|---|---|---|
| 1.80 | 0.80 | +0.80 | -1.25 | RM80 profit; RM180 total return |
| 3.00 | 2.00 | -0.50 | +2.00 | RM200 profit; RM300 total return |
At the exact Decimal 2.00 midpoint, some interfaces may show Malay +1.00 or -1.00 depending on their display convention. Both describe the same even-money relationship, so check the platform’s own help information rather than treating the sign alone as a value judgment.
How to convert betting odds
The safest manual route is to use Decimal as a common reference:
- Decimal → HK: subtract 1.
- HK → Decimal: add 1.
- When Decimal is below 2.00, Malay is positive and equals Decimal minus 1; Indo is negative and equals -1 divided by Decimal minus 1.
- When Decimal is above 2.00, Indo is positive and equals Decimal minus 1; Malay is negative and equals -1 divided by Decimal minus 1.
For example, Decimal 1.80 becomes HK 0.80, Malay +0.80 and Indo -1.25. Decimal 3.00 becomes HK 2.00, Malay -0.50 and Indo +2.00.
Manual conversion is useful for understanding, but it is not a substitute for the displayed market price, the selected line, the accepted price and the settlement rules. If you are reading a handicap market, see Asian Handicap Betting Explained for the separate question of how the line itself settles.
What is implied probability?
Implied probability is a way to express a displayed price as a percentage before considering the bookmaker margin. For Decimal odds, a basic calculation is:
> Implied probability = 1 ÷ Decimal odds × 100
Decimal 2.00 therefore corresponds to about 50% implied probability. Decimal 1.80 corresponds to about 55.6%. These figures describe the price representation, not a certainty about the match. A 50% implied probability does not mean that an outcome is guaranteed to occur half the time in a short run, and it does not remove the risk of loss.
Why the same match can show different odds formats
Sportsbooks can use different default formats because of regional convention, account settings or interface preference. Some readers find Decimal easier because it shows total return, while others prefer HK because it shows profit directly. Malay and Indo displays compress the same relationship into signed numbers.
Changing the odds format does not change the match, the selected team, the market rules or the settled outcome. It only changes the notation.
Common odds format mistakes
- Treating a Decimal total return as if it were profit only.
- Reading a negative Malay or Indo value as a prediction of a loss.
- Comparing prices from two screens before converting them to the same format.
- Ignoring whether two markets use the same settlement period, such as regulation time versus extra time.
- Assuming a larger-looking number is automatically better without checking its format.
- Treating odds movement as proof that an outcome is certain.
- Increasing a stake after a loss in an attempt to recover it.
Odds format checklist
Before reading any odds market:
- Confirm the display format.
- Separate stake, potential profit and total return.
- Check the market name, line and settlement rules.
- Compare equivalent prices only after using one common format.
- Set a time and spending limit before any adult-only participation where permitted.
- Do not chase losses or use money needed for essential expenses.
The Responsible Gaming and Account Security Guide has a longer checklist for limits, account protection and warning signs.
Frequently asked questions
What are the main betting odds formats?
Common formats include Decimal, Hong Kong, Malay and Indonesian/Indo odds. They can represent the same underlying price in different notation.
What are Hong Kong odds?
HK odds show potential profit per unit staked. Add 1 to convert an HK price to its Decimal equivalent.
How do Malay odds work?
Positive Malay odds show profit relative to stake. Negative Malay odds show the stake required to make one unit of profit. The exact sign is a display convention, not a prediction.
What are Indo odds?
Indo odds use positive values for profit relative to stake and negative values for stake needed to make one unit of profit. They mirror Malay odds around the Decimal 2.00 midpoint.
What is the difference between Decimal and Hong Kong odds?
Decimal includes the stake in the total return; Hong Kong shows profit only. Decimal 2.50 and HK 1.50 describe the same price.
Does changing the odds format change the actual value?
No. If the market, line and accepted price are the same, changing the display format changes the notation, not the underlying relationship.
What does a negative Malay or Indo odd mean?
It identifies the calculation style for that format. Read it with the relevant formula or the platform’s displayed bet-slip return; it is not a sign that the selection will lose.