Money, in plain language

Fnsoko helps everyday Kenyans understand budgeting, saving and investing, without the jargon.

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Simple and compound interest

Small amounts plus time. Watch what happens when your interest starts earning interest.

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KESKenyan numbers
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Your numbers

KSh
KSh
% a year
Illustrative. Use a rate you can realistically expect.
years
Up to 60 years.
Interest added
Your result
Balance after 10 yearsKSh 1,051,295
You put in
KSh 610,000
Interest earned
KSh 441,295
Starting amount, simple interest
KSh 20,000
Starting amount, compound interest
KSh 27,070
Year 0Year 10
  • Your deposits
  • Interest

What this means for you

After 10 years you would have about KSh 1,051,295. You put in KSh 610,000, and interest did the rest: KSh 441,295, or 42% of the final amount.

Look at the chart. The interest part is tiny at first and then grows faster every year, because last year's interest starts earning too. That is why starting small and early usually beats starting big and late. Real returns move around, so treat this as a picture of how growth works, not a promise.

This is financial education, not financial advice. Results are estimates based on the numbers you enter, and any rates shown are illustrative.

How to read your result.

For anyone who wants to see why starting early matters, before choosing where to save or invest.

01

Balance at the end

Everything you put in plus the interest it earned, assuming a steady rate. Real returns go up and down, so treat this as a picture of how growth works, not a promise.

02

Your deposits against interest

The columns split your own money from what interest added. In the early years it is mostly you. Later, interest starts doing more of the work.

03

Simple against compound

Compare the two starting-amount figures. The gap is interest earning interest, and it widens the longer you leave the money alone.

Questions people ask.

What is the difference between simple and compound interest?

Simple interest is paid only on the amount you started with. Compound interest is paid on your money plus the interest it has already earned, so the growth speeds up the longer you leave it.

Does compounding frequency matter?

A little. Monthly or daily compounding earns slightly more than yearly at the same rate. Time and the amount you keep adding matter much more.

Are the results guaranteed?

No. The calculator assumes a steady rate, which real investments rarely give. Treat it as a picture of how growth works, not a promise of what you will earn.

Does this include tax?

No. Interest from money market funds, T-bills and bank deposits in Kenya is usually subject to withholding tax. The money market fund calculator shows the after-tax picture.

This is financial education, not financial advice.

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