Free Bowling Score Calculator
For bowling enthusiasts, league organizers, and ESP32 developers who need a reliable, free way to calculate and verify ten-pin bowling scores. No more expensive commercial systems—get accurate frame-by-frame results instantly.
Open the ToolWhy use Bowling Score Calculator?
Accurate ten-pin scoring with strike and spare bonuses
Frame-by-frame breakdown and cumulative total
Supports all 10 frames including the 10th frame with up to 3 rolls
Instant results—no sign-up or download required
Perfect for verifying scoring logic in DIY projects like ESP32
How it works
- Enter the number of pins knocked down for each roll in each frame, using the format: [roll1, roll2, ...] for each frame, separated by commas.
- For strikes, use [10]; for spares, use [roll1, roll2] where roll1 + roll2 = 10; for open frames, use [roll1, roll2].
- For the 10th frame, you may have up to 3 rolls if you get a strike or spare.
- Click 'Calculate Score' to see the frame-by-frame scores and total.
FAQ
How do I input a strike?
Enter [10] for a strike in any frame. In the 10th frame, if you get a strike, you get two bonus rolls, so you might enter [10, x, y] where x and y are the pins knocked down in the bonus rolls.
How do I input a spare?
Enter two numbers that add up to 10, e.g., [7,3] or [0,10] (though 0,10 is not typical as the first roll would be a strike). The calculator will recognize it as a spare.
What if I have an open frame?
Enter the two rolls that do not sum to 10, e.g., [9,0] or [8,1]. The score for that frame is simply the sum of the two rolls.
Can I use this for duckpin or candlepin bowling?
This calculator is designed for ten-pin bowling. Other variations have different scoring rules and number of pins.
Is this calculator free to use?
Yes, it's completely free and requires no registration.