Free · Investment returns

Compound Growth Rate & CAGR Calculator

Compare starting and ending values using an equivalent compound growth rate.

  • Formula & worked example
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Calculator inputs

Enter the values you know

Results update as you type. Edit a result to calculate another value, or lock a value to keep it fixed.

%
Change in value
%
Result

Your calculation

Enter enough known values to calculate the blanks.

Use one currency for your figures. Mixed-currency conversions use rates captured October 5, 2026, rather than live exchange rates.

How to use this calculator

  1. Enter the values you know in the units shown. Leave unknown values blank.
  2. Results update automatically as you type. Edit a result to calculate another value, or lock a value to keep it fixed.
  3. Reset restores the starting fields. A worked example appears below.

Use the result with context

Results are estimates for planning and education. Confirm rates, taxes, fees, and legal requirements with the relevant institution or a qualified professional before making a financial decision.

Formula and method

CAGR is the ending value divided by the starting value, raised to one divided by the number of periods, minus one. It describes a constant equivalent rate, not the actual return in each period.

CAGR = ((ending value ÷ starting value)^(1 / years) − 1) × 100

Worked example

Enter these known values and leave the other values blank.

Number of periods
5
Initial value
10000 USD
Final value
15000 USD
Compound Annual Growth Rate (CAGR)
8.44718 %
Difference
5000 USD
Total growth
50 %

Assumptions and limitations

  • Inputs must satisfy the validation rules. Editing a result can recalculate an earlier input; lock values you want to keep fixed.
  • Currency conversions use the captured source rates from October 5, 2026; they are not live exchange rates.

Common questions

What does this cagr calculation tell me?

CAGR is the ending value divided by the starting value, raised to one divided by the number of periods, minus one. It describes a constant equivalent rate, not the actual return in each period.

Can I calculate a different unknown?

Yes. Clear that field and enter the other known values. The calculator uses the available inverse equations.

References

The calculation equations, inverse formulas, units, and input rules were imported from this source. Bookify provides the interface and equation solver.

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