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Average Calculator

Calculate averages, sums, counts, minimums, maximums, and ranges with this online average calculator.

Average calculator

(10 + 20 + 30 + 40) ÷ 425

(10 + 20 + 30 + 40) ÷ 4 = 25

Data Summary
Sum
100
Count
4
Average
25
Minimum
10
Maximum
40
Range
30
Calculation steps
  1. Step 1Calculate the total10 + 20 + 30 + 40 = 100
  2. Step 2Count the valuesCount = 4
  3. Step 3Divide the total by the count100 ÷ 4 = 25

Common Average Problems

School grades

Find the mean score across assignments or tests.

(85 + 90 + 95) ÷ 3 = 90

Business sales

Summarize average daily sales across several days.

(100 + 120 + 150) ÷ 3 ≈ 123.3

Daily expenses

Find the average amount spent per day.

(20 + 35 + 45) ÷ 3 ≈ 33.33

Measurements

Combine repeated measurements into one average.

(20 + 22 + 24) ÷ 3 = 22

Formula

Mean

Average = Sum of values ÷ Number of values

Range

Range = Maximum − Minimum

Examples

Decimal values

(10.5 + 20.5 + 30.5) ÷ 3 = 20.5

Negative values

(-10 + 0 + 10) ÷ 3 = 0

Multiple values

(10 + 20 + 30 + 40) ÷ 4 = 25
Percentage CalculatorCalculate percentages, percentage changes, and proportions.Fraction CalculatorCalculate, simplify, add, subtract, multiply, divide, and convert fractions with this online fraction calculator.Ratio CalculatorSimplify ratios, solve proportions, calculate equivalent ratios, and split totals with this online ratio calculator.GCD CalculatorFind the GCD, GCF, or HCF of two or more integers and view each step of the Euclidean algorithm.Scientific CalculatorEvaluate arithmetic, powers, roots, trigonometry, and logarithms.

Frequently Asked Questions

How do I calculate an average?

Add all values, count how many values there are, and divide the sum by that count.

Can I enter numbers on separate lines?

Yes. Separate values with commas, spaces, or new lines; each format produces the same result.

Why can an average be a decimal?

The total does not always divide evenly by the number of values, so the average may include decimal places.

Can the calculator use negative and decimal values?

Yes. The list may contain negative numbers, decimals, zero, or a combination of them.

How is the range calculated?

Subtract the minimum value from the maximum value.