Finance calculator

Compound Interest Calculator

Estimate how a starting balance and optional regular contributions may grow when interest compounds over time.

Calculated privately on your device
No account. Formula and assumptions are shown below.

Calculator inputs

Compound interest details

RM
%
RM
years
Quick presets
More optionsCurrency and calculation settings
%
Optional: deducted from the return assumption.
%
Optional: shows today’s-money value.
Formula & disclaimer

Future Balance = Principal growth + the compounded future value of each regular contribution

View assumptions
Formula reviewCalcs at Hand Editorial TeamVerified 26 August 2026 Β· automated checks included

How to read this result

Three useful checks, kept deliberately short.

What this result includes

The estimated balance includes RM70,000 of principal and contributions plus about RM24,111.23 of compound growth.

A practical example

RM10,000 earns 5% a year for 10 years with RM500 added at the end of every month: Starting principal growth β‰ˆ RM16,470.09 Β· Total monthly contributions = RM500 Γ— 120 = RM60,000 Β· Combined future balance β‰ˆ RM94,111.23.

Common input mistake

The model assumes a fixed rate and consistent contributions. It excludes withdrawals, fees, taxes and changing returns.

Formula and assumptions

Future Balance = Principal growth + the compounded future value of each regular contribution

More frequent compounding produces a slightly higher balance when the nominal annual rate is unchanged. Contributions made at the beginning of a period receive one more period of growth than contributions made at the end.

Keep in mind: This is an estimate using a constant rate; actual returns, fees and taxes may differ.

Produced byCalcs at Hand Editorial Team
Last formula check26 August 2026
Review methodKnown examples + boundary cases
Editorial and correction policy β†’