Put our betting calculators on your site.

Parlay calculator

Legs in any odds format, live payout, and something no other free widget has: mark a leg Won or Push mid-game and the maths updates.

Is this a good bet? — fair-odds value check

Strips the bookmaker's margin from any two-way market and flags whether the price you can get is actually good.

How much should I bet? — Kelly stake

Turns odds, win chance and bankroll into a suggested stake — and says don't bet when there's no edge.

Hedge calculator

Lock in a profit on a bet that's gone your way — with a partial-hedge slider no other free widget offers.

Arbitrage calculator

Two or three outcomes, any odds format — instantly see whether the prices guarantee a profit and how to split your stake.

Odds converter

American, decimal, fractional and implied probability — type into any one and the rest update live.

Why publishers use these

• Pure client-side math — loads instantly, makes no network calls, sets no cookies
• Isolated iframe — it can't touch your page and your page can't touch it
• SEO-safe by design: the credit link inside every widget is nofollow, exactly as Google's guidelines ask — zero risk to your rankings or ours
• No API keys, no account, no maintenance — we keep them up to date

Free, or white-labelled