A bookmaker's price is a cost, and the margin is charged whether the bet wins or loses. These are the calculators to see that cost before you stake: payout, accumulator, implied probability, margin, bonus value, dutching, EV and hedging. No tips and no predictions — arithmetic only.
Combined odds, return, profit and implied chance for any number of legs.
Move between every odds format in one screen.
What the odds claim, and what the book keeps.
The true value of a sign-up bonus, not the headline.
Split a stake so every outcome returns the same.
Is the price worth taking, given what you think the real chance is?
The stake that locks the same return whichever outcome wins.
The five-minute guide for Nigerian punters.
Every price you take has the bookmaker's cut built into it. A 7% margin means ₦70 of every ₦1,000 staked is gone before the first whistle. See how it works →
Adding a leg multiplies your payout and your risk at the same time. Five "bankers" at 1.50 each is a 7.59 combined price — and only a 13.2% implied chance of landing. Run the numbers →
A ₦10,000 free bet is not ₦10,000. Most are stake-not-returned — worth the profit only. Check a bonus →
No. We do not accept bets, hold funds, or offer tips. NaijaOdds is a set of free calculators and educational guides — pure maths, so you can see what a price is worth.
The odds and payout tools work for any fixed-odds market. Margin and dutching are most useful on sports markets where several outcomes are priced.
No. Every calculation runs inside your browser. Nothing you type is sent to us or stored anywhere.
Decimal, almost always. 1.85 means ₦1,850 returned on a ₦1,000 stake, stake included.