Invest Ksh 250,000 at Prime Bank for 10 years.
At Prime Bank's current weighted-average deposit rate of 10.39%, a Ksh 250,000 deposit grows to about Ksh 703,444 after 10 years — about Ksh 453,444 in interest, assuming monthly compounding and no withdrawals.
Final balance
Ksh 703,444
2.81× your deposit
Deposited
Ksh 250,000
One-off, no withdrawals
Interest earned
Ksh 453,444
At 10.39% 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 637,023 over the same 10 years. Run your own numbers on the compound interest calculator.