How to Calculate Average Growth Rate Over 5 Years

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5-Year Average Growth Rate Calculator

Calculate the Compound Annual Growth Rate (CAGR) over a 5-year period

Calculation Results:

Average Annual Growth Rate:

Total Growth:

Understanding the 5-Year Average Growth Rate

When measuring the progress of a business, investment, or population over time, simple averages can be misleading. To find the true annual growth over a 5-year period, we use the Compound Annual Growth Rate (CAGR) formula. This represents the geometric progression ratio that provides a constant rate of return over the time period.

The 5-Year Growth Formula

Growth Rate = [(Final Value / Initial Value)(1/5) – 1] × 100

Step-by-Step Calculation Example

Let's say you started a business that earned 10,000 units of revenue in its first year. Five years later, the revenue grew to 20,000 units. Here is how to calculate the average growth rate:

  1. Divide the final value by the starting value: 20,000 / 10,000 = 2
  2. Raise the result to the power of 1/n (where n is 5 years): 20.2 ≈ 1.1487
  3. Subtract 1 from the result: 1.1487 – 1 = 0.1487
  4. Multiply by 100 to get the percentage: 14.87%

This means your business grew by an average of 14.87% every year for five years.

Why Use CAGR Over 5 Years?

  • Smoothes Volatility: It ignores year-to-year fluctuations and shows the steady growth required to get from point A to point B.
  • Comparison: It allows you to compare the growth of different sized assets or companies on an equal percentage basis.
  • Realistic Planning: 5 years is a standard benchmark in finance and business planning to determine long-term health.
function calculateGrowthRate() { var initialValue = parseFloat(document.getElementById('initialValue').value); var finalValue = parseFloat(document.getElementById('finalValue').value); var resultArea = document.getElementById('resultArea'); var growthResult = document.getElementById('growthResult'); var totalGrowthResult = document.getElementById('totalGrowthResult'); var interpretation = document.getElementById('interpretation'); if (isNaN(initialValue) || isNaN(finalValue)) { alert("Please enter valid numbers for both fields."); return; } if (initialValue 0) { interpretation.innerHTML = "Your value increased by an average of " + cagr.toFixed(2) + "% each year. This indicates a positive growth trend over the 5-year period."; } else if (cagr < 0) { interpretation.innerHTML = "Your value decreased by an average of " + Math.abs(cagr).toFixed(2) + "% each year. This indicates a downward trend over the 5-year period."; } else { interpretation.innerHTML = "There was no change in value over the 5-year period (0% growth)."; } }

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