Odds Formats Explained
Three notations for the same information. Learning to move between them takes five minutes and removes a permanent low-level confusion.
Decimal Odds
Decimal odds state the total return per unit staked, including the stake. A price of 2.50 returns NPR 250 on a NPR 100 bet: NPR 150 profit plus the original NPR 100.
This is the default in most of the world and the sensible choice for anyone in Nepal, because the arithmetic is direct. Multiply the stake by the price and the answer is what lands in the balance.
Decimal odds also convert to probability in one step: one divided by the price. That property alone makes them the most useful notation for anyone thinking about value rather than about tradition.
Fractional Odds
Fractional odds state profit relative to stake, excluding the stake. A price of 3/2 returns NPR 150 profit on NPR 100, for a total of NPR 250, which is the same as decimal 2.50.
- Even money
- 2.00 / 1/1 / +100
- Odds against
- 3.50 / 5/2 / +250
- Odds on
- 1.50 / 1/2 / -200
- Long shot
- 11.00 / 10/1 / +1000
Converting is simple: divide the fraction and add one. Fractional odds of 5/2 give 2.5 plus one, or decimal 3.50. Going the other way, subtract one and express the result as a fraction.
American Odds
This notation uses a positive or negative number based on a hundred units. A positive figure is the profit on a stake of a hundred; a negative figure is the stake required to win a hundred.
So +250 means a hundred staked returns two hundred and fifty profit, equivalent to decimal 3.50. And -200 means two hundred must be staked to win a hundred, equivalent to decimal 1.50.
The format is common on American sportsbooks and rare elsewhere. Where you meet it, converting to decimal is worth doing before making any comparison.
Conversion Rules in One Place
- Fractional to decimal. Divide, then add one. 7/2 becomes 3.5 plus one, or 4.50.
- Decimal to fractional. Subtract one, then express as a fraction. 4.50 becomes 3.5, or 7/2.
- Positive American to decimal. Divide by a hundred and add one. +150 becomes 2.50.
- Negative American to decimal. Divide a hundred by the number and add one. -200 becomes 1.50.
- Decimal to probability. One divided by the price. 2.50 becomes forty percent.
Most platforms let you set the display format in account settings. Setting it to decimal once removes the need for four of those five rules permanently.
Why the Format Matters at All
It does not change the bet. What it changes is how easily you can tell whether a price is good, and notation that obscures that is a small permanent tax on decision quality.
Fractional odds in particular make comparison difficult. Deciding quickly whether 15/8 beats 7/4 is harder than comparing 2.875 with 2.75, and that friction is entirely avoidable.
American odds have the same problem in a different direction, because the positive and negative scales meet awkwardly around even money.
The Practical Setting for Nepal
Set the display to decimal odds and keep it there. Every calculation on this site, and every probability conversion worth doing, assumes that format.
Then set the account currency to rupees so the numbers on screen are the numbers in your wallet. Those two settings together remove all the arithmetic friction from reading a board.
The implied probability article covers the next step: turning a decimal price into a percentage and reading what the operator is charging for it.
Reading a Price That Moves
Prices shorten when money arrives on a selection or when information changes the model. They lengthen for the opposite reasons. Watching the direction over a day tells you something that a single snapshot does not.
A steady drift in one direction usually reflects information. A sudden jump usually reflects a specific event: a team sheet, an injury announcement, a weather update. Distinguishing the two is easier than it sounds and useful for deciding whether to take a price now or wait.
What movement does not tell you is whether the current number is good. A price that has shortened all week may still be too long, and one that has drifted may still be too short.
Settings Worth Changing Once
Two account settings remove most of the friction from reading a board. The odds display, which should be decimal, and the account currency, which should be rupees for anyone funding through a Nepali wallet.
The second cannot be changed later. It is fixed at registration, and an account opened in another currency converts every payment on the way in and again on the way out, at a cost that never appears as a fee.
Both settings are covered on the registration page, which is the point at which one of them stops being adjustable.
Rounding and Display Differences
Converting between notations produces figures that do not divide cleanly, and platforms round differently when displaying them. A price shown as 2.87 in one format may appear as 15/8 in another, which is 2.875.
The difference is trivial on a single bet and worth knowing when comparing two operators quickly. The displayed number is a rounded representation of the price actually applied at settlement.
Where a platform lets you see more decimal places, turning that on removes the ambiguity entirely.
Frequently asked questions
What do decimal odds include?
The stake. A price of 2.50 returns two and a half times the stake in total, which is one and a half times the stake in profit.
How do I convert fractional odds to decimal?
Divide the fraction and add one. 5/2 becomes 2.5 plus one, or decimal 3.50.
What does +250 mean?
In American odds, a profit of 250 on a stake of 100, which is decimal 3.50.
What does -200 mean?
A stake of 200 is required to win 100, which is decimal 1.50. Negative American odds always indicate a favourite.
Which format should I use in Nepal?
Decimal. The arithmetic is direct, the conversion to probability is one step, and every guide on this site assumes it.
Does the format change the bet?
No. All three express the same price. What differs is how quickly you can judge whether it is a good one.