Invest Ksh 2,000,000 at Consolidated Bank of Kenya for 20 years.
At Consolidated Bank of Kenya's current weighted-average deposit rate of 7.31%, a Ksh 2,000,000 deposit grows to about Ksh 8,590,974 after 20 years — about Ksh 6,590,974 in interest, assuming monthly compounding and no withdrawals.
Final balance
Ksh 8,590,974
4.30× your deposit
Deposited
Ksh 2,000,000
One-off, no withdrawals
Interest earned
Ksh 6,590,974
At 7.31% p.a.
Year by year
Contributions form the floor; interest compounds on top.
Could you earn more elsewhere?
The same Ksh 2,000,000 in Cytonn Money Market Fund — currently Kenya's top-yielding MMF at 9.39% net of 15% WHT — would grow to about Ksh 12,985,555 over the same 20 years. Run your own numbers on the compound interest calculator.