Volleyball Efficiency Rate Calculator Formula

Understand the math behind the volleyball efficiency rate calculator. Each variable explained with a worked example.

Use the Volleyball Efficiency Rate Calculator

Formulas Used

Attack Efficiency

efficiency = (kills - errors) / attempts

Kill Percentage

kill_pct = kills / attempts * 100

Error Percentage

error_pct = errors / attempts * 100

Variables

VariableDescriptionDefault
killsKills15
errorsAttack Errors4
attemptsTotal Attempts35

How It Works

Volleyball Attack Efficiency

Attack efficiency is the single most important hitting statistic in volleyball, balancing kills against errors and total swings.

Formula

Efficiency = (Kills - Errors) / Total Attempts

The result ranges from -1.000 (all errors) to 1.000 (all kills). Zero means kills equal errors. In college and professional volleyball, an efficiency above .300 is excellent and above .400 is elite.

Worked Example

A hitter records 15 kills, 4 errors, on 35 attempts.

kills = 15errors = 4attempts = 35
  1. 01Efficiency = (15 - 4) / 35 = 11 / 35 = 0.314
  2. 02Kill percentage = 15 / 35 x 100 = 42.9%
  3. 03Error percentage = 4 / 35 x 100 = 11.4%

Ready to run the numbers?

Open Volleyball Efficiency Rate Calculator