Click "10 Pin Calc" for multiple games!

Ball Score Values

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The creator and operator of does not represent that the information and or scores derived from the usage of the 10-pin calculator or duckpin caluclator are accurate or complete and accepts no liability in relation thereto. Verification of score accuracy is the complete responsibility of the user of this website NOT the creator or operator of The creator and operator of accepts NO responsibility for lost scores, loss of data entered or any data loss whatsoever.

Use of is intended for informational use only to experiment with scoring scenarios and is not intended for anything other than that. No guarantee, explicit or implied, is made regarding their accuracy or suitability to a specific purpose.

Welcome to the Bowlinggenius!
This is a site with what we hope is the Internet's best bowling score caluclators. In the future we hope to have more bowling applications for you, much more! Today we have a calculator for 10 Pin bowlers and another for Duck Pin bowlers
Many of you might recognize this as Wayne's bowling score calculator but with more features. Well it is in fact just that. Years ago I wrote one of the first bowling score calculators for the Internet. I received lots of feedback over the years and you asked for more. You wanted features such as multiple games, handicaps, name information.
So here is a new and improved calculator! Give it a try and let me know what you think.
Of course one of the main reasons for this application is to answer the "what if's" When I went to work the next day and I thought about league play from the previous night those missed spares nagged at me. If you ever asked - What if I just picked up one more spare?
then this website is for you.
I hope you like it. More features to come....

Do you know what the small images are in the upper corners?

Click the upper left image and enter your name and handicap information

Click the iamges on the right and you can hide games or delete games

Oh... and best yet! Just click and drag the game to arrange the window anyway you like!

So how does scoring work?

Some bowling score basics are:

Terms: - There are 10 pins. - The game consists of 10 frames of bowling - A frame is an opportunity for the bowler to try and knock down all 10 pins with up to 2 chances (2 rolls of a bowling ball). - A strike (X) is when the bowler knocked down all 10 pins on the first try. (i.e. the first ball rolled). Since it's a strike there is no second try for that frame! - A spare (/) is when the bowler knocked down less then 10 pins with the first try (the first ball rolled) but knocked down the remaining pins with the second ball - for a total of 10 pins knocked down for that frame. - The maximum score for a game = 300


Let's take a simple game where you have no strikes and no spares. You just throw 2 balls per frame knocking down 5 on your first ball and 3 on your second ball. And.. by chance you do this for all 10 frames of the game. So... each frame would be worth 8 points for a grand total score of 80 for the whole game

Let's hope you are a bit better than that and get a strike. Strikes are worth more and are a little more complicated to score The rule for a strike score is as follows: The score for the strike frame = 10 plus the total of the next TWO BALLS THROWN plus the previous frame score.


let's say you have the following scores frame1 = 8 frame2 = X (strike) frame3 (ball 1) = 7 and ball2 = 1
Your score for frame 1 = 8 Your score for frame 2 = 10 + frame3(ball1) + frame3(ball2) + frame1 = 10 + 7 + 1 + 8 = 26 Your score for frame 3 is just simple math - frame 2 + frame 3 = 34
Remember you can't compute frame 2's score UNTIL you have thrown TWO more balls (in frame 3)!!!

3) Spares are almost the same as strikes except they are worth 10 plus the values of the next ball thrown + the previous frame
let's continue with frame4 frame 4 ball 1 = 5 ball2 = 5 (all pins knocked down - 2 balls spare!) you can't total frame 4 yet because you need the value of your next ball
frame 5 ball1 = 8 Now frame 4 = 10 + frame 5(ball 1) + frame3 = 10 + 8 + 34 = 52 Frame 5 ball 2 = 1 frame 5 score = 61 (52 + 8 + 1)
Again remember you can't compute frame 4's score UNTIL you have thrown that first ball in frame 5

4) Another tricky part is the 10th frame if you get a strike on your FIRST ball - you must throw TWO more balls so you can compute the 10th frame score. (If these balls are strikes also, they only count as 10 each. They are just needed to get your next ball values.)
if you get a spare by a combination of your first and your SECOND ball you must throw a third ball to compute the spare equation.
YOU ONLY THROW UPTO 3 balls in the 10th frame.
Hope this helps, try it out on the calculator