Free · Embeddable
Put our betting calculators
on your site.
Six of our free tools, each embeddable on your blog, forum or site with one line of code. No signup, no dependencies, no tracking cookies. The maths runs in the reader's browser, so it works anywhere HTML is allowed.
Parlay calculator
Legs in any odds format and a live payout. Mark a leg Won or Push mid-game and the maths updates.
Try it
Live preview
Interactive. Try it here first.
Embed code
Paste it anywhere HTML is allowed. Free to use, forever. The one-line credit under the calculator is optional: keep it if you want to say where the tool came from, delete it if you don't.
Is this a good bet?
Fair-odds value check
Takes the bookmaker's cut out of any two-way market and says whether the price you can get is actually good.
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Live preview
Interactive. Takes out the bookmaker's cut and says if the price is good.
Embed code
Paste it anywhere HTML is allowed. Free to use, forever. The one-line credit under the calculator is optional: keep it if you want to say where the tool came from, delete it if you don't.
How much should I bet?
Kelly stake
Turns the price, your win chance and your bankroll into a suggested stake. It says don't bet when the price is not good enough.
Try it
Live preview
Interactive. Full, half or quarter Kelly.
Embed code
Paste it anywhere HTML is allowed. Free to use, forever. The one-line credit under the calculator is optional: keep it if you want to say where the tool came from, delete it if you don't.
Hedge calculator
Lock in a profit on a bet that's gone your way. A slider lets you hedge part of it or all of it.
Try it
Live preview
Interactive. Slide to hedge part or all.
Embed code
Paste it anywhere HTML is allowed. Free to use, forever. The one-line credit under the calculator is optional: keep it if you want to say where the tool came from, delete it if you don't.
Arbitrage calculator
Two or three outcomes, any odds format. See if the prices let you win the same either way (if both bets stand) and how to split your stake.
Try it
Live preview
Interactive. Do the prices line up?
Embed code
Paste it anywhere HTML is allowed. Free to use, forever. The one-line credit under the calculator is optional: keep it if you want to say where the tool came from, delete it if you don't.
Odds converter
American, decimal, fractional and the win chance each price means. Type into any one and the rest update.
Try it
Live preview
Interactive. Four formats, one widget.
Embed code
Paste it anywhere HTML is allowed. Free to use, forever. The one-line credit under the calculator is optional: keep it if you want to say where the tool came from, delete it if you don't.
Do the odds tell the truth?
A chart of what the odds said would happen next to how often it really did, across 18,238 settled markets. Free to use with a link. More on how fair each bookmaker’s prices are: Price honesty table.
Try it
Live preview
A chart, not a calculator. Nothing to click.
Embed code
Paste it anywhere HTML is allowed. Free to use with a link. Using WordPress or another CMS? Paste the chart address on its own line and it embeds itself (oEmbed): https://betbetter.world/oembed?url=https%3A%2F%2Fbetbetter.world%2Fstudies%2Fcharts%2Fembed%2Fcalibration-curve&format=json
Why publishers
use these
- The maths runs in the reader's browser. It loads fast, makes no network calls and sets no cookies.
- Each widget sits in its own iframe. It can't touch your page and your page can't touch it.
- The credit link inside every widget is
nofollow, as Google's guidelines ask.
- No API keys, no account and nothing to maintain. We keep them up to date.
Badges
For analysts and newsletters that use our data. Copy one line, paste it on your page, done.
Data by Bet Better
For pages built on our numbers.
Badge code
Free to use when you cite our data. The badge is a small, plain image file. It sets no cookies and loads nothing else.
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