How do you convert rank to percentile?

Using the default convention: percentile = 100 × (1 - (rank - 1) / classSize). This gives the percentage of students ranked below you.

How are ties handled in class rank?

Three methods are available: Competition ranking (1,2,2,4), Dense ranking (1,2,2,3), and Fractional ranking (average of positions).

How do weighted subjects affect rank?

Weights multiply scores before ranking. You can apply per-row weights or subject-level weights to adjust the importance of different scores.

Class Rank Calculator

Rank, percentile, and score analysis for any class size.

Class Size

Grading Direction

Rank → Percentile

Rank (1-based)

Percentile → Rank

Percentile (0-100)

Use Alternate Convention (percentile = 100 × (1 – rank / classSize))

Default: percentile = 100 × (1 – (rank – 1) / classSize)

Options

Tie Policy

Curve Type

Normalize to 0-100 Use Per-Row Weights

Enter Scores

Format: Name | Score | Weight (optional) | Subject (optional)

Top Score

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Median Score

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Your Rank

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Your Percentile

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Rank	Name	Raw Score	Adjusted	Percentile	Notes

Score Distribution

Paste CSV Data

Format: Name,Score,Weight,Subject

Top Score

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Median Score

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Your Rank

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Your Percentile

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Rank	Name	Raw Score	Adjusted	Percentile	Notes

Help & Formulas

Rank to Percentile (Default)

percentile = 100 × (1 – (rank – 1) / N)

Percentile to Rank (Default)

rank = floor((1 – percentile / 100) × N) + 1

Tie Policies

Competition: 1,2,2,4 (skip ranks)
Dense: 1,2,2,3 (no gaps)
Fractional: Average of positions

Disclaimer: These calculations are guidance; confirm with your institution’s official policy.