Savings & investment growth

Savings & investment growth: use initial balance, end-of-month deposit, nominal annual return. Review the formula, worked example and calculation steps.

Inputs

Use the units shown

Scenario estimate using the assumptions shown. Verify costs and rates with your provider; this is not a guaranteed return or lending decision.

RESULT
—

Enter your values and select Calculate.

Formula & explanation
FV = P(1+r)ⁿ + d[(1+r)ⁿ−1]/r

Variables & units

Initial balance
currency · minimum 0, maximum 1000000000000
End-of-month deposit
currency · minimum 0, maximum 1000000000000
Nominal annual return
% · minimum 0, maximum 100
Saving period
months · minimum 0, maximum 1200

Worked example

1,000 initially plus 100 monthly at zero return for 12 months becomes 2,200.

Assumptions

Constant nominal annual return with monthly compounding and end-of-month deposits. No tax, fees or investment risk is modelled.

Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.

Practice with an example

Use the default input values to find the answer. The reset icon restores those values.

Calculated on your device. Your latest 100 calculations stay in this browser.