Reducing-balance installment: P × r × (1+r)^n ÷ ((1+r)^n − 1). r = annual rate ÷ 12 ÷ 100. P is principal, n is months.
Figures are whole taka. The last row absorbs rounding so the principal parts add up to the principal.
Example: 100,000 BDT at 12% for 12 months. The reducing installment rounds to 8,885 BDT. Flat interest is 12,000 BDT, so the total is 112,000 BDT.
This page is not a loan offer and it is not a bank or NGO term sheet. Kisti Pro is 200 BDT/month. The calculator is free.
| Month | Installment | Total interest | Principal | Balance |
|---|---|---|---|---|
| 1 | 8,885 | 1,000 | 7,885 | 92,115 |
| 2 | 8,885 | 921 | 7,964 | 84,151 |
| 3 | 8,885 | 842 | 8,043 | 76,108 |
| 4 | 8,885 | 761 | 8,124 | 67,984 |
| 5 | 8,885 | 680 | 8,205 | 59,779 |
| 6 | 8,885 | 598 | 8,287 | 51,492 |
| 7 | 8,885 | 515 | 8,370 | 43,122 |
| 8 | 8,885 | 431 | 8,454 | 34,668 |
| 9 | 8,885 | 347 | 8,538 | 26,130 |
| 10 | 8,885 | 261 | 8,624 | 17,506 |
| 11 | 8,885 | 175 | 8,710 | 8,796 |
| 12 | 8,884 | 88 | 8,796 | 0 |