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Weighted Average Calculator

Calculate a weighted average from three values and weights.

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Weighted Average Calculator

Calculate a weighted average from three values and weights.

Results are estimates for planning and comparison. Check important decisions independently.

How to use this calculator

Enter your values above and the result updates instantly. You can change the inputs as often as you like, and use Reset to restore the example values.

About the result

Calculate a weighted average from three values and weights. The calculation runs in your browser; the values you enter are not sent to this website.

Maths guide

What the Weighted Average Calculator does

Calculate a weighted average from three values and weights. It is designed for checking a mathematical result and understanding how the values relate to one another. The calculator uses the values you enter to produce weighted average without sending your information to the server.

This page is most useful when you want a quick answer and a repeatable way to compare alternatives. Change one input at a time to see which factor has the greatest effect.

How the calculation works

The calculation starts with value 1, weight 1, value 2, weight 2, value 3 and weight 3. It applies the relevant maths relationship to calculate weighted average. Results update in your browser whenever an input changes.

Inputs used

  • Value 1
  • Weight 1
  • Value 2
  • Weight 2
  • Value 3
  • Weight 3

Results provided

  • Weighted average

Practical tip: Keep full precision during the calculation and round only the final answer unless the task says otherwise.

Example weighted average calculator setup

The calculator opens with the example values below. They demonstrate the expected format and give you a starting point before entering your own figures.

Value 1
80
Weight 1
30
Value 2
70
Weight 2
30
Value 3
90
Weight 3
40

After entering the values, review weighted average in the results panel. Use Reset whenever you want to return to this example.

Understanding your result

Read the result alongside the inputs that produced it. A precise-looking number is still only as useful as the information entered. For comparisons, keep every input the same except the one factor you want to test.

The result follows the stated mathematical method; confirm required rounding or notation for formal work. The tool rounds displayed answers where appropriate, while the underlying browser calculation retains greater precision.

Frequently asked questions

What information do I need for the Weighted Average Calculator?

You need value 1, weight 1, value 2, weight 2, value 3 and weight 3. Use values that describe the same scenario and measurement period so the comparison remains meaningful.

What does the Weighted Average Calculator show?

The results cover weighted average. Change any input to compare another scenario; the answer updates immediately.

Can I rely on this maths calculation?

The result follows the stated mathematical method; confirm required rounding or notation for formal work.