How it works
How the EMI Calculator works
Quick answer: A ₹30 lakh home loan at 8.5% for 20 years has an EMI of ₹26,035. Over the full tenure you pay ₹32,48,327 in interest, 52.0% of everything you repay.
Formula
EMI = P × r × (1 + r)^n ÷ ((1 + r)^n − 1)
P is the loan amount, r the yearly rate ÷ 12 ÷ 100, and n the number of monthly instalments.
Worked example
Loan ₹30,00,000, 8.5% a year, 20 years (240 instalments): EMI ₹26,035. Total payment ₹62,48,327, of which ₹32,48,327 is interest.
₹30 lakh at 8.5%: effect of tenure
| Tenure | EMI | Total interest | Total payment | |
|---|
| 10 years | ₹37,196 | ₹14,63,485 | ₹44,63,485 | Open |
| 15 years | ₹29,542 | ₹23,17,594 | ₹53,17,594 | Open |
| 20 years | ₹26,035 | ₹32,48,327 | ₹62,48,327 | Open |
| 25 years | ₹24,157 | ₹42,47,044 | ₹72,47,044 | Open |
| 30 years | ₹23,067 | ₹53,04,266 | ₹83,04,266 | Open |
Assumptions and limits
- Banks may compute on a daily-reducing balance or round EMIs slightly differently, so your sanction letter can differ by a few rupees.
- Floating rates change over time; when the rate moves, banks usually change the tenure, the EMI, or both.
- Processing fees, insurance, and GST on fees are not included.
Frequently asked questions
Is a longer tenure better?
A longer tenure lowers the EMI but raises total interest. On ₹30 lakh at 8.5%, 30 years instead of 20 cuts the EMI by about ₹2,970 but adds about ₹20.6 lakh of interest.
Does prepaying a home loan help?
Yes. Prepayments go straight to principal, which cuts future interest. Most banks do not charge a prepayment penalty on floating-rate home loans for individuals.