Free six-format utility
Betting odds calculator and converter
Enter one displayed price to convert Decimal, American, Fractional, Hong Kong, Malay and Indonesian odds. See the same price's implied probability, gross return and profit for an illustrative stake. No account or live odds feed is required.
Converted odds and return
Core calculation: gross return = stake × decimal odds; profit = gross return − stake; single-price implied probability = 100 ÷ decimal odds.
The formats change notation, not the underlying price
Decimal odds include the returned stake. Fractional and Hong Kong notation describe net profit relative to stake. American odds use a 100-unit reference, while Malay and Indonesian notation switch between positive and negative ratios. Converting a price does not improve it, remove margin or make the outcome more likely.
| Format | From decimal D | Meaning |
|---|---|---|
| Hong Kong | D − 1 | Profit per unit staked |
| Malay | +(D − 1) to D 2.00; then −1 ÷ (D − 1) | Profit rate or stake ratio |
| Indonesian | −1 ÷ (D − 1) below D 2.00; then +(D − 1) | American-style ratio divided by 100 |
| Implied probability | 100 ÷ D | Single-price percentage before market margin |
Format definitions and worked converter reference: CGMBet System User Guide, sections 16.8–16.9.
Check the accepted betslip before relying on a return
The calculator handles one fixed-odds selection settled as a full win. It does not fetch Luckly.gg, verify a current market or model pushes, voids, dead heats, deductions, partial settlement, cash-out, commission, taxes, each-way terms or multiples. The accepted betslip and current rules override every illustrative result here.
- Confirm the event, market, selection, line and exact accepted price.
- Use the current displayed format instead of copying an old screenshot.
- Keep the whole stake within a pre-set entertainment budget.
- Never treat implied probability as a prediction or a reason to chase losses.
- Use the market-margin calculator only when every outcome comes from one complete market snapshot.
Betting odds calculator questions
What does an odds converter calculate?
It expresses the same displayed price in several notation systems. This calculator also shows the single-price implied probability, gross return and profit for the stake entered. It does not estimate the chance more accurately or remove bookmaker margin.
Are payout and profit the same?
No. Gross payout or total return includes the returned stake. Profit is the gross return minus the original stake. A stake of 100 at decimal 2.50 therefore has a 250 gross return and 150 profit if settled as a win.
How is implied probability calculated?
For a single price, divide 100 by the decimal odds. Decimal 2.00 therefore displays 50%. The percentages across every outcome commonly add to more than 100% because market prices include margin.
Does the calculator fetch live Luckly.gg odds?
No. It only converts the value entered. The current Luckly.gg market and accepted betslip control the available format, price, stake limits, eligibility and settlement.
Which settlement adjustments are excluded?
The result excludes pushes, voids, dead heats, Rule 4-style deductions, partial wins or losses, cash-out values, exchange commission, taxes, each-way terms and multiple-bet settlement. Check the current market rules for those cases.