Calculadora de Percentil
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
valor = ordenar e pegar posição p/100·(n−1)
About this calculator
The Percentile Calculator is a free online tool that determines the value corresponding to a specific percentile in a set of up to seven numbers. You enter the values and the desired percentile (from 0 to 100), and the calculator returns the value at that position. The calculation is done by sorting the numbers from smallest to largest and applying the formula: position = (percentile / 100) * (n - 1), where n is the number of values. If the position is not an integer, linear interpolation is performed between adjacent values.
This calculator is useful in various situations, such as educational statistical analysis, performance evaluations, or any context where understanding the distribution of a small dataset is needed. For example, calculating the 90th percentile of a class of 7 students' grades helps identify the value above which the top 10% lie. It is also used in standardized tests, quality control, and opinion surveys with small samples.
Important precautions: the calculator works only with up to 7 values; larger datasets require other tools. Ensure all numbers are in the same unit and scale. The 0th percentile corresponds to the smallest value, and the 100th percentile to the largest. For intermediate percentiles, interpolation may produce values not present in the original set. Remember that the result is an estimate based on the sample, not an exact population value.
Frequently asked questions
What does the 50th percentile mean?
The 50th percentile is the median, the value that splits the dataset in half, with 50% of data below and 50% above.
Can I use the calculator with more than 7 values?
No, this calculator is designed for up to 7 values. For larger datasets, use a percentile calculator that supports more data.
How does the calculator handle duplicate values?
Duplicate values are kept in the sorted list. The calculation follows the same formula, and interpolation may consider equal values.
Can the result be a number not in the list?
Yes, for percentiles resulting in fractional positions, interpolation yields a value between two numbers in the list.
What is the difference between percentile and percentage?
Percentile indicates the relative position of a value in an ordered set, while percentage is a proportion out of 100. For example, the 90th percentile does not mean 90% correct, but that 90% of data are below that value.