Bowling Handicap Calculator

What Is a Bowling Handicap?

A handicap lets bowlers of different skill levels compete fairly in the same league by adding bonus pins to lower-average bowlers' scores. It's calculated from the gap between a bowler's average and a fixed "basis" score that represents a strong scratch average — the bigger that gap, the more bonus pins get added.

Most leagues use a basis of 220 and a percentage of 80-100% of the difference, but exact numbers vary by league, so check your league's rules if you're calculating an official handicap rather than just estimating your own.

How to Use This Calculator

Enter your bowling average, your league's basis score (220 is common; adjust if yours differs), and the handicap percentage your league uses (also commonly 90%, sometimes 80% or 100%). If you want to see a handicapped score from an actual game, enter that scratch score too.

How We Calculate It

Handicap = (Basis score − your average) × handicap percentage, rounded to the nearest whole pin. If your average is at or above the basis score, your handicap is 0 — the formula never subtracts pins. Your handicapped score for any game is simply your scratch score plus that handicap.

A Few Notes

League handicap rules vary — some use a different basis score, some cap the maximum handicap, and some recalculate your average partway through a season. This calculator uses the standard formula, but always confirm your specific league's basis and percentage before relying on it for official standings.