Average Calculator

Calculate the average of any set of numbers. Supports simple mean, weighted average (with custom weights), and geometric mean. Enter your numbers below for instant results.

Average Calculator

Average Formulas

Simple Mean = (x₁ + x₂ + ... + xₙ) / n Weighted Mean = Σ(value × weight) / Σ(weights) Geometric Mean = ⁿ√(x₁ × x₂ × ... × xₙ)

Types of Averages

TypeBest Used For
Arithmetic MeanGeneral data, equal-weight values
Weighted MeanGrades, polls, prices with different importance
MedianSkewed data (income, home prices)
Geometric MeanGrowth rates, investment returns

Frequently Asked Questions

When should I use weighted average instead of simple average?+
Use weighted average when different items contribute differently to the final result. For example, a final exam worth 40% of your grade should contribute more to your average than a quiz worth 5%. GPA calculations also use weighted averages based on course credit hours.
What is the difference between mean and median?+
The mean is the sum divided by the count. The median is the middle value when sorted. The mean is sensitive to outliers; one very large or small value can pull it significantly. Median is more representative for skewed data like incomes or house prices.

Related Calculators

Statistics Calculator Percentage Calculator Grade Calculator GPA Calculator Scientific Calculator

About the Average Calculator

This free average calculator helps you get accurate results instantly without needing to work through the math manually. Whether you need a quick estimate or a precise figure, having a reliable tool on hand saves time and reduces errors compared to manual calculation.

How to Use This Calculator

  1. Enter your values in the input fields above. Each field is labeled to guide you.
  2. Double-check your inputs — results are only as accurate as the numbers you enter.
  3. Click the Calculate button to see your result instantly.
  4. Use the result for your planning, budgeting, or decision-making.

Why Accurate Calculations Matter

Small errors in math calculations can compound into significant problems. A 1% miscalculation in a budget or measurement can translate to hundreds or thousands of dollars in wasted resources, or result in having to redo work entirely. This calculator uses the standard formulas and methods to give you reliable results you can trust.

Tips for Getting the Best Results

Frequently Asked Questions

Is this calculator free? Yes — completely free with no account, login, or payment required. Use it as many times as you need.

How accurate are the results? This calculator uses the standard formulas for average calculations. Results are accurate for typical use cases. For specialized or high-stakes applications, consult a professional.

Does it work on mobile? Yes. This calculator is fully responsive and works on smartphones, tablets, and desktops.