Percent to decimal odds
Type a value in % to get it in decimal instantly.
That's 1.5× as likely as rolling a six, while red on roulette is 1.95× more likely. That is roughly one in 4.
Convert the other way: decimal to %
What it means
How likely is that?
These are pure mathematical conversions. Published betting odds include a bookmaker’s margin, so they always add to more than 100%.
The math
How to convert % to decimal
Every format is the same chance written differently: probability = 1 ÷ decimal odds, fractional = decimal − 1, and American odds are +100 × (1 − p) ÷ p for an underdog or −100 × p ÷ (1 − p) for a favorite.
Example: 25 % = 4 decimal.
Every unit
Your chance in every format
Tables
% to decimal conversion table
| % | decimal |
|---|---|
| 1 % | 100 decimal |
| 2 % | 50 decimal |
| 5 % | 20 decimal |
| 10 % | 10 decimal |
| 20 % | 5 decimal |
| 25 % | 4 decimal |
| 33 % | 3.0303 decimal |
| 40 % | 2.5 decimal |
| 50 % | 2 decimal |
| 60 % | 1.66667 decimal |
| 75 % | 1.33333 decimal |
| 90 % | 1.11111 decimal |
| 95 % | 1.05263 decimal |
decimal to % conversion table
| decimal | % |
|---|---|
| 1 decimal | 100 % |
| 2 decimal | 50 % |
| 5 decimal | 20 % |
| 10 decimal | 10 % |
| 20 decimal | 5 % |
| 25 decimal | 4 % |
| 33 decimal | 3.0303 % |
| 40 decimal | 2.5 % |
| 50 decimal | 2 % |
| 60 decimal | 1.66667 % |
| 75 decimal | 1.33333 % |
| 90 decimal | 1.11111 % |
| 95 decimal | 1.05263 % |
Quick answers
Quick answers
- How many decimal is 1 %?
- 1 % is 100 decimal.
- How many decimal is 10 %?
- 10 % is 10 decimal.
- How many decimal is 25 %?
- 25 % is 4 decimal.
The units
About these units
Percent (%)
The same probability out of a hundred, which most people read fastest.
Decimal odds (decimal)
The European format: total return per unit staked, stake included.
Keep going