Enter your remaining score (2–170) and get the optimal checkout combination for your darts game. The Darts Checkout Calculator shows you the best sequence of darts — trebles, singles, and doubles — to finish your leg of 301, 501, or any X01 game. Just input your score and follow the suggested path to hit that winning double.
Recommended Checkout
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Darts Required
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Backup Checkout
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Finishing Double
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The highest possible checkout is 170, known as the 'Big Fish'. It requires hitting Treble 20, Treble 20, and then the Bullseye (Double 25). This is the maximum score achievable in a single three-dart visit that finishes on a double.
In X01 games like 301 and 501, the rules require you to finish the game by hitting a double (or the bullseye, which counts as double 25). This rule, called 'double out', adds strategy and skill to the finish and is standard in competitive darts.
Any score above 170 cannot be checked out in a single three-dart visit. Additionally, the scores 169, 168, 166, 165, 163, 162, and 159 are also impossible checkouts and require more than three darts to finish.
If you miss your first dart, recalculate based on what you actually scored with that dart. For example, if aiming for T20 but hitting a single 20, subtract 20 from your remaining score and look up the new two-dart checkout. Planning for misses — especially leaving yourself on an even number — is key to good checkout strategy.
Leaving yourself on an even number ensures you can always finish on a double. Odd numbers require a single to make them even first, which costs a dart. For example, if you're on 45, you'd hit single 5 to leave 40, then double 20.
A combination finish is a checkout that requires more than just a single double — it uses a sequence of trebles, singles, and a final double to reach exactly zero. For instance, a checkout of 121 might be T20, single 1, double 20.
You can check out from 2 by hitting double 1. However, 1 is a bust score — you cannot check out on 1 because there is no single dart that hits double 0.5. In that case, your score would remain unchanged and you'd try again next turn.
Professionals typically memorise the most common checkouts through repetitive practice and match experience. Key checkouts like 170, 167, 164, 161, 160 (the highest three-dart finishes) and popular scores like 121, 110, 100, and all the two-dart finishes from 40 down are usually committed to memory first.