Darts checkout calculator
Enter the score you have left and get a route that finishes the leg on a double in the fewest darts. Switch to the table to see every possible checkout from 170 down.
Runs in your browser: nothing you enter is sent anywhere.
How to use it
- Type the score you have left, one score per line.
- Choose how many darts you have in hand - 3, 2 or 1.
- Read the route. A dash means there is no finish with that many darts.
To see all finishes at once, choose “Full table”.
How checkouts are found
The calculator tries every double as the last dart, then every one or two scoring darts that make up the rest. The scoring darts are singles 1-20, doubles, trebles, the outer bull (25) and the bull (50). Among routes with the fewest darts it prefers those that do not use the bull before the last dart, then a favoured double, then the larger scoring darts first.
Worked example
170 = T20 (60) + T20 (60) + Bull (50). 100 = T20 (60) + D20 (40) in two darts. 90 comes out as T18 + D18 (54 + 36). A score of 3 needs two darts: 1 and D1.
Tips
The route shown is one of several. If a different double suits you better, aim for a leave that gives you that double - for example from 41, a 9 then D16. Scores 169 and above, except 170, cannot be checked out.
Frequently asked questions
What is the highest checkout in darts?
170, thrown as treble 20, treble 20 and the bullseye. Seven scores below it - 169, 168, 166, 165, 163, 162 and 159 - cannot be finished in three darts.
Why must the last dart be a double?
In standard 501 and 301 games the leg ends only when the score reaches exactly zero with a double, including the bullseye, which counts as double 25. This is called double-out.
How does the calculator choose a route?
It searches every combination of up to three darts that ends on a double, picks the fewest darts, then avoids the bull before the final dart, prefers your favourite doubles (D20, D16, D10 …) and puts the biggest scoring darts first. Other routes exist; players choose by their strongest numbers.
What do the labels mean?
A bare number is a single, D is a double, T is a treble and Bull is the bullseye worth 50. A bare 25 is the outer bull.