Estimate an affordable loan amount based on your monthly income and a target EMI-to-income ratio.
Your affordable EMI is calculated as a percentage of your income.
That EMI is then converted into a loan amount using the reverse EMI formula.
Affordable EMI: Monthly income × EMI-to-income ratio
Loan amount: Reverse EMI formula on the affordable EMI
The loan affordability calculator starts from your monthly income rather than from an EMI. You choose what share of income you are willing to commit to EMIs, and it first converts that share into an affordable instalment, then converts the instalment into a loan amount using the reverse EMI formula.
This two-step approach matches how Indian banks think about borrowers. They look at the fixed obligations to income ratio, or FOIR: the total of your EMIs as a percentage of net monthly income. The calculator lets you pick the ratio yourself, so you can test a lender's limit and also a more cautious personal limit, such as 30% or 35%, and see how much loan each one allows.
It is most useful early in planning, when you know your salary but not yet the loan you should aim for.
1. Take your net monthly income, meaning take-home pay after tax and deductions.
2. Choose an EMI-to-income ratio, for example 35% or 40%.
3. Compute the affordable EMI = monthly income × ratio ÷ 100.
4. If you already pay other EMIs, subtract them to find the EMI available for the new loan.
5. Convert the annual rate to a monthly rate r = annual rate ÷ 12 ÷ 100 and set the tenure n in months.
6. Compute the loan amount P = EMI × ((1 + r)ⁿ − 1) ÷ (r × (1 + r)ⁿ).
A lender cannot see your future, but it knows that households with a large share of income locked into EMIs have little room to absorb a shock such as a medical bill or a salary cut. Limiting the EMI to a fixed share of income keeps a buffer for food, rent, school fees and savings. The ratio is not a law of nature. Higher-income borrowers are often allowed a higher ratio because the remaining amount in rupees is still large, while lower-income borrowers are held to lower ratios.
The calculation is a chain. The ratio turns income into an EMI linearly: raise the ratio by a tenth and the EMI rises by a tenth. The EMI then turns into a loan through the reverse EMI formula, which is also linear in the EMI. So the loan amount is directly proportional to income and to the ratio, but depends on rate and tenure in a curved way. This is why a salary hike raises affordability steadily, while extending tenure beyond 20 to 25 years adds relatively little.
The calculator treats the chosen ratio as entirely available for the new loan. If you already pay a car loan or personal loan EMI, you must lower the ratio or subtract that EMI yourself, or use the EMI affordability calculator, which does this step. It also ignores property insurance, maintenance, and future changes in rate or income. A cautious plan uses a ratio a little below the lender's limit, so a later rate rise does not push you past what you can pay.
Meera takes home ₹1,20,000 a month and wants her home loan EMI to stay at 35% of that. The bank quotes 8.6% a year for 25 years, or 300 months.
Answer: Affordable loan amount ₹51,72,559; Affordable EMI ₹42,000
Using gross salary or CTC instead of monthly take-home pay.
Applying the full ratio to a new loan while existing EMIs are still running.
Picking the lender's maximum ratio as a personal comfort level.
Counting irregular income such as bonuses or overtime as if it were fixed monthly income.
Setting a home budget from salary before house-hunting.
Comparing how much a couple can borrow with one income versus two.
Testing a cautious ratio against a lender's typical limit.
Planning how a salary increase would change the loan you can carry.
What EMI-to-income ratio do lenders typically use?
Many lenders keep your total EMIs (including your other loans) at 40-50% of your monthly income. This is sometimes called FOIR (Fixed Obligation to Income Ratio).