sports-and-fitness calculator
Bowling Average Calculator
Calculate ten-pin bowling average from total credited pins and games.
Bowling Average Calculator
Bowling average
Enter total pins and games.
USBC competition rules may treat fractions differently for standings, handicap, or classification.
Formula version 1.0.0
How to use this calculator
- Enter total credited pins.
- Enter games bowled for the same series.
- Calculate after confirming both are whole-number official totals.
- Read the decimal average and whole-pin average.
Symbols and units
| Symbol | Meaning | Unit or domain |
|---|---|---|
P | Total credited pins | pins |
G | Games bowled | games |
A | Bowling average | pins/game |
Checked examples
Six-game series
Inputs: 1,000 pins over 6 games
Calculation: A = 1000 ÷ 6
Result: 166.667; whole-pin average 166
The official whole-pin figure drops the fraction rather than rounding it up.
Check: bowling-average.test.ts
Perfect game
Inputs: 300 pins over 1 game
Calculation: A = 300 ÷ 1
Result: 300
A single standard ten-pin game cannot exceed 300.
Check: bowling-average.test.ts
Assumptions, rounding, and limits
- Inputs are official non-negative whole-number totals.
- At least one game is included.
- No game contributes more than 300 pins.
- League eligibility and minimum-game rules are not evaluated.
Frequently asked questions
Is the whole-pin average rounded?
No. The fractional part is dropped for the displayed whole-pin figure.
Can one game exceed 300?
Not in standard ten-pin scoring, so impossible totals are rejected.
Will this establish a league average?
It calculates the arithmetic result only; governing-body rules may impose additional requirements.
Sources and review
- United States Bowling Congress: USBC Playing Rules — Rule 108 Averages — Rule 108 averages
- Formula version
- bowling.average@1.0.0
- Formula review
- Equatara formula review
- Editorial review
- Equatara editorial review
- Last verified
- 2026-10-25
- Applicability
- Ten-pin pins-per-game arithmetic; competition eligibility rules excluded.
- Next review
- On material formula/source change, or by 2028-10-25.
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Found a problem?
Report a formula, result, example, source, or accessibility issue through the calculator correction process. Do not include sensitive input values.