How is bowling handicap calculated?

Handicap = (Base Score − Average) × Percentage, rounded down to the nearest whole number. If the average is equal to or higher than the base score, the handicap is 0. The handicap is added to each game score to get the handicap score.

What base score and percentage should I use?

It depends on the league. Common combinations are a base of 220 with 80% or 90%, and a base of 200 with 80%. Check your league's rules or ask the league secretary, since this calculator uses whatever values you enter.

Why is the handicap rounded down instead of to the nearest number?

Most bowling leagues, including USBC-sanctioned leagues, truncate (round down) the handicap calculation rather than rounding to the nearest whole number. This tool follows that convention.

Can my handicap be negative?

No. If your average is at or above the base score, the formula would produce zero or a negative number, so the handicap is set to 0. Scratch bowlers with high averages typically have no handicap.

What is the difference between scratch and handicap score?

Scratch score is the raw pin count you bowled. Handicap score is the scratch score plus your handicap, used to give bowlers of different skill levels a fair comparison in a league or tournament.

Bowling Handicap Calculator

Name: Bowling Handicap Calculator
Availability: InStock
Author: Nham Vu

Enter your average, the league base score, and the handicap percentage to get your handicap and handicap-adjusted game scores.

Handicap Inputs

Bowling Average

League Base Score

Commonly 200 or 220, set by your league.

Handicap Percentage

Game Scores (optional)

Your Handicap

Formula Used

(220 − 150) × 0.80

Handicap Scores

Game	Scratch	+ Handicap	Handicap Score
Enter game scores on the left to see handicap totals.
Series Total	0	0	0

Summary

Enter your average, the league base score, and the handicap percentage to get your handicap and handicap-adjusted game scores.

How it works

Enter your bowling average (from your last several games or league sheet).
Enter the league base score, commonly 220 or 200.
Enter the handicap percentage, commonly 80% or 90%.
The calculator shows your handicap, rounded down to a whole number.
Enter your game scores to see the handicap-adjusted score for each game and the series total.

Use cases

Working out a personal handicap before joining a bowling league.
Checking a league secretary's handicap math on a printed standings sheet.
Comparing handicap scores between bowlers with different averages.
Estimating handicap totals for a three-game series ahead of a tournament.
Testing how a different base score or percentage changes the handicap.

Frequently Asked Questions

Last updated: 2026-07-22 · Reviewed by Nham Vu