Tap what you actually hit after each dart — the calculator recalculates the best route in real time.
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What this calculator actually does
Most darts checkout calculators give you a route and leave you to figure out the rest. This one tracks your visit dart by dart. Enter your remaining score, confirm each throw as a hit or a miss, and the calculator recalculates the best finish with however many darts you have left — not the three you started with.
That matters because missing dart one changes everything. Hitting a single instead of a treble drops you to two darts and a different score. Most charts don't help you there. This one does.
Where the routes come from
The checkout routes are sourced from a consensus table built from three references: Darts501.com (the most cited checkout chart in the sport, established 2004), WhichDarts.com's curated 2024 PDF, and verified TV broadcast data. Where sources disagreed, Darts501.com broke the tie. That gives you 162 routes from 2 to 170, including every standard two- and three-dart finish a professional would throw on stage.
Scores 159, 162, 163, 165, 166, 168 and 169 have no valid three-dart checkout — they're called bogey numbers. If you land on one, the calculator shows you the best dart to throw to leave a clean number for your next visit.
How the miss detection works
The dartboard has 20 segments arranged in a fixed clockwise order. When you tap Missed, the calculator knows which segments sit next to the one you were aiming at. Miss Treble 20 and the most likely landings are Single 20, Single 1 and Single 5 — the segments that border that part of the board. Those appear as quick-tap options so you can correct your score in one tap and see the recalculated route immediately.
A full segment grid lets you enter anything you actually hit — including trebles and doubles of neighbouring segments, or an off-board miss counted as zero.
What "set up" means
If you've used a dart and the remaining score can't be finished in the darts you have left, the calculator switches to setup mode. It finds the throw that leaves you on the cleanest possible number for your next visit — a one-dart finish if possible, or a well-known two-dart combination. The suggestion also shows you the route for that next visit, so you know what you're setting up for before you throw.
Using this at the board
The calculator is designed to be used at the board, not away from it. Enter your score once. From there, hit or miss after each dart — one tap per throw. The score updates on screen and the next dart's route is ready before you pick up your next arrow.
If you entered a dart wrong, the Reset button returns the score to what you typed at the start of the turn. You can also tap any alternative route to set it as your primary path before you throw.