Invest Ksh 250,000 at Stanbic Bank Kenya for 15 years.
At Stanbic Bank Kenya's current weighted-average deposit rate of 7.56%, a Ksh 250,000 deposit grows to about Ksh 774,257 after 15 years — about Ksh 524,257 in interest, assuming monthly compounding and no withdrawals.
Final balance
Ksh 774,257
3.10× your deposit
Deposited
Ksh 250,000
One-off, no withdrawals
Interest earned
Ksh 524,257
At 7.56% 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.