Dart Checkout Calculator
Find the best double-out finish for any darts score from 2 to 170, with alternative routes and a full checkout chart.
Type the score you have left — the best double-out route appears as you type.
Recommended checkout
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Other routes
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Full checkout chart — every score from 170 down to 2
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Standard double-out rules: the leg must end on a double, and the bullseye (50) counts as double 25. Several checkout charts exist and good players disagree about the best route — the suggestion below is one sensible option and the alternatives are all legal.
How it works
A darts leg finishes on a double, so a checkout is any combination of at most three darts whose values add up to your remaining score and whose last dart is a double — D1 to D20, or the bullseye, which counts as double 25. This calculator enumerates every legal combination of singles, trebles, the outer bull (25) and doubles for the score you type, then ranks them. The highest possible three-dart finish is 170 (T20, T20, Bull); the highest two-dart finish is 110 (T20, Bull) and the highest one-darter is 50 (Bull).
Routes are ranked first on the number of darts, then on how comfortable they are: a treble 20 opener is preferred over a treble 5, a big single beats a small one, and finishing on a halvable double (D20, D16, D8, D4, D2) beats finishing on an odd double such as D19 or D13. That reproduces the familiar chart entries — 170 = T20 T20 Bull, 167 = T20 T19 Bull, 164 = T20 T18 Bull, 161 = T20 T17 Bull, 160 = T20 T20 D20, 141 = T20 T19 D12, 136 = T20 T20 D8, 100 = T20 D20, 98 = T20 D19, 81 = T19 D12, 60 = 20 D20 and 51 = 19 D16 — while still showing you the alternatives, because published charts differ. Scores of 169, 168, 166, 165, 163, 162 and 159 are bogey numbers: no three-dart finish exists, so the tool suggests a score that leaves you a friendly double instead. Everything is plain arithmetic in your browser — nothing is uploaded, and there are no ads or sign-ups.
Frequently asked questions
What is the highest checkout in darts?
170 — treble 20, treble 20, bullseye (60 + 60 + 50). It is the only three-dart combination that adds up to 170 and ends on a double, which is why it is called the "big fish". With two darts left the highest finish is 110 (treble 20 then bullseye) and with a single dart it is 50, the bullseye, because the bull counts as double 25. Anything above 170 cannot be checked out in one visit, so the calculator suggests a score that leaves you a comfortable double instead.
Which darts scores cannot be checked out in three darts?
Seven scores between 2 and 170 have no three-dart finish at all: 169, 168, 166, 165, 163, 162 and 159. Each of these is a bogey number — no combination of three darts ending on a double adds up to them. 1 is also impossible, because a leg must finish on a double and the lowest double is D1 (2); leaving 1 is a bust. When you type one of these the calculator says so and suggests what to score to leave a friendly double such as 40 or 32.
How does this calculator choose which route to recommend?
It enumerates every legal combination of singles, trebles, the outer bull (25) and doubles whose last dart is a double, then ranks them: fewest darts first, then the easiest route. A treble 20 opener beats a treble 5, a big single beats a small one, and finishing on a halvable double (D20, D16, D8, D4, D2) beats finishing on an odd double such as D19. That reproduces the familiar chart entries — 167 = T20 T19 Bull, 141 = T20 T19 D12, 100 = T20 D20, 81 = T19 D12, 51 = 19 D16 — and every alternative route is listed underneath, because published checkout charts genuinely disagree with each other.