Summarize a set of decimal prices with both a simple arithmetic mean and a stake-weighted mean. Optional stake entries show how larger bets change the portfolio average.
This calculator summarizes separate bets. It does not multiply the odds and must not be used as a parlay price.
Results use the assumptions shown on this page. Actual settlement may differ under operator, jurisdiction, or market-specific rules.
Odds of 1.80 with a $100 stake and 2.20 with a $50 stake have an arithmetic mean of 2.00. Their stake-weighted average is about 1.9333 because the shorter price carries more stake.
| Bet | Odds / stake |
|---|---|
| 1 | 1.80 / $100 |
| 2 | 2.20 / $50 |
| Weighted average | 1.9333 |
Use stake weighting when you want larger bets to influence the average in proportion to money risked.
No. Average odds summarize separate bets; parlay odds are normally multiplied.
They answer different questions: the typical listed price versus the typical dollar of stake exposure.
Yes, but each included row must contain both decimal odds and a positive stake.
Not generally. The tool calculates a separate stake-weighted average of each bet’s implied probability.
| Item | Definition |
|---|---|
| Input format | Odds and stakes |
| Primary output | Stake-weighted average odds |
| Precision | Full internal precision; display rounded for readability |