Advanced Average Calculator

Calculate multiple types of averages including arithmetic, geometric, harmonic, weighted, median, mode, and RMS.

Average Calculations

Arithmetic Mean30.0000

Sum ÷ Count • General purpose average

Geometric Mean26.0517

ⁿ√(Product) • Growth rates, ratios

Harmonic Mean21.8978

n ÷ (Σ1/x) • Speeds, rates, ratios

RMS (Root Mean Square)33.1662

√(Σx² ÷ n) • Physics, signal processing

Statistical Measures

Median30.0000
ModeNo mode
Sum150.0000
Count5
Min10.0000
Max50.0000
Range40.0000

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About This Tool

How It Works

  • Enter numbers separated by commas, spaces, or newlines
  • Calculations update automatically as you type
  • Switch between simple and weighted average modes
  • For weighted mode, provide equal number of weights
  • View multiple types of averages and statistical measures
  • Results include additional statistics like median, mode, and range

Common Use Cases

  • Calculate student grades with weighted assignments
  • Analyze financial data and investment returns
  • Find geometric mean for growth rates and ratios
  • Calculate harmonic mean for rates and speeds
  • Determine RMS values in physics and engineering
  • Statistical analysis of datasets

Frequently Asked Questions

What is the difference between arithmetic mean, geometric mean, and harmonic mean?

The arithmetic mean is the simple average calculated by summing all values and dividing by the count. The geometric mean is the nth root of the product of n numbers, useful for growth rates and ratios. The harmonic mean is the reciprocal of the arithmetic mean of reciprocals, commonly used for rates and speeds.

When should I use a weighted average instead of a regular average?

Use a weighted average when different values have different levels of importance. For example, when calculating a final grade where exams count for 40%, homework for 30%, and participation for 30%, you would use weighted averages to accurately reflect the grade.

What is RMS (Root Mean Square) and when is it used?

RMS is the square root of the arithmetic mean of the squares of the values. It's commonly used in physics, engineering, and signal processing to measure the magnitude of varying quantities, such as AC voltage or audio signals.

How do I calculate the median?

The median is the middle value when all numbers are sorted in order. If there's an odd number of values, the median is the middle number. If there's an even number of values, the median is the average of the two middle numbers.

What does "no mode" mean in the results?

No mode means that all values in your dataset appear with the same frequency (typically once each). A mode only exists when at least one value appears more frequently than the others.

Can I calculate the geometric mean of negative numbers?

No, the geometric mean is only defined for positive numbers. If your dataset contains zero or negative values, the geometric mean will show as "N/A". This is a mathematical limitation of the geometric mean calculation.

Why can't I calculate harmonic mean with zero values?

The harmonic mean involves dividing by each value, so including zero would result in division by zero, which is undefined. If your dataset contains zero, the harmonic mean will show as "N/A".

How does the tool handle weighted averages?

For weighted averages, you provide two sets of numbers: the values and their corresponding weights. Each value is multiplied by its weight, summed together, and divided by the total of all weights. The number of values and weights must be equal.

What input formats does the calculator accept?

You can enter numbers separated by commas, spaces, or newlines. For example: "10, 20, 30" or "10 20 30" or each number on a separate line. The tool automatically parses the input regardless of the separator used.

What additional statistics does the tool provide?

Beyond the various types of averages, the tool calculates sum, count, minimum value, maximum value, and range (max - min). These statistics give you a comprehensive view of your dataset's characteristics.

How accurate are the calculations?

The calculator uses JavaScript's floating-point arithmetic and displays results to 4 decimal places by default. For most practical applications, this provides sufficient precision. The underlying calculations maintain full floating-point precision.

Can I use this calculator for student grade calculations?

Yes! The weighted average mode is perfect for calculating final grades. Enter the individual assignment or test scores as the values, and their percentage weights (like 30 for 30% of the final grade) as the weights.

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