Invest Ksh 2,000,000 at Guaranty Trust Bank for 10 years.
At Guaranty Trust Bank's current weighted-average deposit rate of 8.01%, a Ksh 2,000,000 deposit grows to about Ksh 4,443,693 after 10 years — about Ksh 2,443,693 in interest, assuming monthly compounding and no withdrawals.
Final balance
Ksh 4,443,693
2.22× your deposit
Deposited
Ksh 2,000,000
One-off, no withdrawals
Interest earned
Ksh 2,443,693
At 8.01% 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 5,096,186 over the same 10 years. Run your own numbers on the compound interest calculator.