Betting calculators, built for Nigerian punters.
Work out your acca returns, convert odds formats, size your stake by Kelly, spot an arb, split an each-way. No adverts, no login, no autoplay video.
Accumulator Calculator
See your potential return on a multi-leg acca before you place it
Open calculator →
Stake & Return Calculator
Convert odds between decimal, fractional and moneyline — and compute payout
Open calculator →Kelly Criterion Calculator
The staking formula the pros use — sized to your bankroll
Open calculator →Arbitrage Calculator
Lock in a guaranteed profit when two books disagree
Open calculator →Each-Way Calculator
For horses and outrights — split win and place correctly
Open calculator →Why we built these
Most betting calculators online are either buried under popups or just wrong on margin. Ours were built by Emeka and stress-tested against live bet slips on 1xBet, Melbet and Stake. They all work offline once the page loads.
Got a calculator you want us to add? Message editor@bets.ng and we'll consider it for the next update.