Calculadora de Média (estatística)

Média aritmética de até 7 valores.
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

Média
3,0000

Formula

média = Σxᵢ / n

About this calculator

The Average Calculator is a simple tool to compute the arithmetic mean of up to 5 values. You enter the numbers in the available fields, and if you want to use fewer than 5 values, simply leave the extra fields as zero. The result is the sum of all values divided by the count of values considered, ignoring zeros that represent unfilled fields.

It works based on the classic arithmetic mean formula: sum all values and divide by the number of values. The calculator automatically identifies how many fields were filled with non-zero numbers. For example, entering 8, 9, and 10 gives a sum of 27 and a count of 3, resulting in an average of 9. It is useful for calculating school grades, average prices, temperatures, or any small dataset.

Use this calculator when you need a quick average for up to 5 numbers, such as calculating the average of tests, assignments, or bimonthly grades. It is also handy for simple averages in shopping, like the average price of products. Note that it does not handle different weights (weighted average) or large datasets; it is ideal only for situations with few values.

Cautions: Ensure that the numbers entered are relevant and that zeros represent unused fields, not actual zero values. If you need to include zero as a data point, consider using another tool that allows counting zeros. Also, the calculator does not round the result; it displays up to two decimal places, but the internal value is precise.

Frequently asked questions

How does the calculator handle empty or zero fields?

It treats fields with value zero as unfilled and does not include them in the calculation. Only non-zero values count toward the average.

Can I calculate the average with more than 5 numbers?

No, this calculator supports a maximum of 5 values. For larger sets, use another tool that accepts more entries.

Is the average rounded?

The result is displayed with up to two decimal places, but the internal calculation is exact. Rounding is only for display.

What is the difference between simple arithmetic mean and weighted mean?

The simple mean gives equal weight to all values, while the weighted mean assigns different weights. This calculator only does simple mean.

Can I use decimal numbers?

Yes, you can enter decimal numbers. Use a dot as the decimal separator (e.g., 7.5).

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