Grade Average Calculator Formula

Understand the math behind the grade average calculator. Each variable explained with a worked example.

Use the Grade Average Calculator

Formulas Used

Average Score

average = total / 5

Score Range

range = score1 > score2 ? (score1 > score3 ? (score1 > score4 ? (score1 > score5 ? score1 : score5) : (score4 > score5 ? score4 : score5)) : (score3 > score4 ? (score3 > score5 ? score3 : score5) : (score4 > score5 ? score4 : score5))) : (score2 > score3 ? (score2 > score4 ? (score2 > score5 ? score2 : score5) : (score4 > score5 ? score4 : score5)) : (score3 > score4 ? (score3 > score5 ? score3 : score5) : (score4 > score5 ? score4 : score5)))

Total Points

total_points = total

Variables

VariableDescriptionDefault
score1Score 188
score2Score 292
score3Score 378
score4Score 495
score5Score 584
totalDerived value= score1 + score2 + score3 + score4 + score5calculated

How It Works

How to Calculate a Grade Average

A simple average sums all scores and divides by the count.

Formula

Average = (Score1 + Score2 + ... + ScoreN) / N

This gives equal weight to each score.

Worked Example

Five test scores: 88, 92, 78, 95, and 84.

score1 = 88score2 = 92score3 = 78score4 = 95score5 = 84
  1. 01Sum: 88 + 92 + 78 + 95 + 84 = 437
  2. 02Count: 5
  3. 03Average: 437 / 5 = 87.4%

Ready to run the numbers?

Open Grade Average Calculator