Before you sign a loan offer from Diamond Trust Bank Kenya, check the numbers. This DTB loan calculator estimates what you will repay each month and over the whole loan, using 2026 rate data.
Diamond Trust Bank Kenya Loan Calculator
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Current DTB lending rates
The most recent bank-by-bank figures from the Central Bank of Kenya (August 2026) show an average lending rate of 13.97% at Diamond Trust Bank Kenya. The all-bank average was 14.34%, so DTB sits 0.37 percentage points below the market and comes in 13th out of 36 banks. Your own quote may differ, because each borrower’s rate is built from a reference rate plus a risk-based premium.
Using the calculator
- The rate is prefilled with DTB’s CBK average. Overwrite it with the rate on your offer letter.
- Enter the amount in shillings and the term in months.
- Choose reducing balance or flat rate.
- Open the repayment schedule to see the principal and interest in each installment.
For example, KES 500,000 over 36 months at 13.97% on a reducing balance costs about KES 17,082 a month.
Documents and eligibility
Banks in Kenya, Diamond Trust Bank Kenya included, generally check your identity (ID and KRA PIN), your income (payslips, statements or business records) and your repayment history with the credit reference bureaus. Collateral-backed loans need extra paperwork for the asset.
Comparing DTB with other lenders
A bank’s average rate is only a starting point. Two borrowers at Diamond Trust Bank Kenya can get very different quotes depending on their income stability, security and credit history. Get written quotations from at least two or three banks, enter each one in the calculator, and compare the total repayable rather than just the monthly installment. The Total Cost of Credit website (costofcredit.co.ke) is another place to check published bank pricing.
Smart borrowing checklist
Keep your total loan repayments well within your monthly income, and leave a buffer for emergencies. Ask DTB about insurance requirements, any early settlement charges and how a rate change would be communicated to you. Save a copy of the repayment schedule from this calculator so you can check it against your bank statements.
Frequently asked questions
Does the calculator include fees?
No. It shows principal and interest only. Ask Diamond Trust Bank Kenya about arrangement fees, insurance and excise duty, and add them to the total.
Can I compare DTB with other banks?
Yes. BusinessRadar has calculator pages for every CBK-licensed bank, each prefilled with that bank’s CBK average rate (data checked 13 October 2026).
