Invest Ksh 250,000 at Standard Chartered Bank Kenya for 15 years.
At Standard Chartered Bank Kenya's current weighted-average deposit rate of 3.14%, a Ksh 250,000 deposit grows to about Ksh 400,153 after 15 years — about Ksh 150,153 in interest, assuming monthly compounding and no withdrawals.
Final balance
Ksh 400,153
1.60× your deposit
Deposited
Ksh 250,000
One-off, no withdrawals
Interest earned
Ksh 150,153
At 3.14% p.a.
Year by year
Contributions form the floor; interest compounds on top.
Could you earn more elsewhere?
The same Ksh 250,000 in Cytonn Money Market Fund — currently Kenya's top-yielding MMF at 9.39% net of 15% WHT — would grow to about Ksh 1,016,864 over the same 15 years. Run your own numbers on the compound interest calculator.