Bowling score calculator

Type the rolls of a game - X for a strike, / for a spare, - for a miss and digits for pins - and get the score of every frame. It also works for a game in progress.

Rolls (X strike, / spare, - miss)

Frame scores

 1  X     20
 2  7/    37
 3  72    46
 4  9/    66
 5  X     96
 6  X     118
 7  X     133
 8  23    138
 9  6/    155
10  7/3   168

Final score: 168

Runs in your browser: nothing you enter is sent anywhere.

How to use it

Type the rolls in order. Spaces are optional and ignored, so X X 7/ and XX7/ mean the same.
Use X for a strike, a digit for pins knocked down, - (or 0) for a miss and / for a spare.
Read the cumulative score of each frame. Frames whose bonus rolls have not been played show …

Scoring rules

Open frame: the pins knocked down in two rolls.
Spare (/): 10 + the next roll.
Strike (X): 10 + the next two rolls.
10th frame: a strike or spare gives bonus rolls, up to three rolls in all; they are counted as plain pins.

Worked example

The sample game X 7/ 72 9/ X X X 23 6/ 7/3 scores 20, 37, 46, 66, 96, 118, 133, 138, 155 and 168. Frame 1 is a strike followed by 7 and a spare: 10 + 10 = 20. Frame 2 is a spare followed by 7: 10 + 7 = 17, for a total of 37.

Common mistakes

Writing a spare as two digits (73) is rejected - ten pins in a frame is always a spare, so type 7/. A strike in the first roll of frames 1 to 9 ends the frame; do not add a zero after it.

Frequently asked questions

How is a strike scored in bowling?

A strike is 10 plus the pins knocked down by your next two rolls. Three strikes in a row score 30 for the first frame.

How is a spare scored?

A spare is 10 plus the pins knocked down by your next single roll.

What is special about the 10th frame?

A strike or a spare earns bonus rolls inside the frame: a strike gives two more rolls and a spare gives one more, so the 10th frame can have up to three rolls. These rolls only count once, as pins.

What is the highest possible score?

300, a perfect game of twelve strikes in a row. A game where every frame is a spare with 9 pins on the first roll and a 9 in the 10th frame bonus scores 190.

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All tools in this category: Health ·Updated November 3, 2026