Gratuit en LigneCalculatrices
Percentile Calculator
Calculate percentiles and quartiles for any dataset. Find the value at a given percentile, or find what percentile rank a specific value falls at.
percentile calculatorcalculate percentilequartile calculatorpercentile rank calculatorfind percentile
Fonctionnalités Clés — Percentile Calculator
Find value at any percentile (P10 through P99)
Find percentile rank of any value
Q1, Q2 (median), Q3, and IQR
P10 and P90
Linear interpolation (Excel/R compatible)
Paste any size dataset
Pourquoi Utiliser Cet Outil — Percentile Calculator
Gratuit en Ligne Percentile calculatorCalculate percentile — pour TousRapide & Facile Quartile calculatorPercentile rank calculator — 100% GratuitGratuit en Ligne Find percentilePercentile from dataset — pour Tous
Confidentialité d'abord
Tout le traitement se fait dans votre navigateur. Vos données ne quittent jamais votre appareil.
Ultra Rapide
Obtenez des résultats instantanés sans temps d'attente. Pas de délais serveur.
Fonctionne Partout
Utilisez sur tout appareil — ordinateur, tablette ou téléphone. Aucun téléchargement nécessaire.
Questions Fréquemment Posées — Percentile Calculator
What is a percentile?
A percentile indicates the value below which a given percentage of observations fall. The 75th percentile (Q3) means 75% of values are at or below that number. A student scoring at the 90th percentile scored higher than 90% of all test takers.
What is the interquartile range (IQR)?
IQR = Q3 − Q1, the range of the middle 50% of data. It measures statistical spread without being affected by outliers. A data point is often considered an outlier if it falls more than 1.5×IQR below Q1 or above Q3 (the "fence" method used in box plots).
How is percentile calculated?
This calculator uses linear interpolation (Type 7), the default method in R, Excel's PERCENTILE function, and Python's numpy. For a dataset of n values sorted in order, the value at percentile p is found at position (p/100)×(n−1), with linear interpolation between adjacent values if needed.