Question 1

What is a percentile?

Accepted Answer

The value below which a percentage of data falls. 90th percentile = better than 90% of values. Used in test scores, growth charts.

Question 2

How is percentile different from percentage?

Accepted Answer

Percentage is a portion of 100. Percentile is a ranking. Scoring 90% correct might put you at the 75th percentile.

Question 3

How accurate are these calculations?

Accepted Answer

Our calculator uses double-precision floating-point arithmetic, accurate to about 15-16 significant digits for most calculations.

Question 4

Can I use the result in further calculations?

Accepted Answer

Yes, results are calculated to full precision. You can copy the exact value or use the rounded display depending on your needs.

Percentile Calculator - Free Online Tool

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