Gold loans are among the most straightforward forms of secured lending in India, yet borrowers routinely walk into banks and NBFCs without understanding the arithmetic that determines how much they can borrow or what they will actually pay. The numbers are not complicated. But ignoring them costs real money.

What Determines How Much You Can Borrow

The single biggest factor in any gold loan is the value of the gold you pledge. Lenders assess this through a simple process: they weigh your gold ornaments, determine the purity (measured in karats), and arrive at a net weight of pure gold content. That net weight is then multiplied by the current market price of gold per gram.

Here is where borrowers often get surprised. A 22-karat gold chain weighing 30 grams does not contain 30 grams of pure gold. Pure gold is 24 karats. So the actual gold content is 30 multiplied by 22/24, which gives you 27.5 grams of pure gold. If gold is trading at ₹6,000 per gram, the gold value is ₹1,65,000. The lender will not give you the full amount. They apply a loan-to-value ratio, or LTV, which the Reserve Bank of India has capped at 75% for gold loans from NBFCs. Banks sometimes operate at slightly different thresholds depending on internal policy, but 75% is the regulatory ceiling that matters most. So on ₹1,65,000 worth of gold, the maximum loan you could receive is ₹1,23,750.

Your gold loan eligibility, then, is not a mystery. It is a function of three variables: weight, purity, and the prevailing gold price, all filtered through the LTV ratio. No income proof, no credit score, no employment verification changes that number significantly. This is the appeal of gold loans and also their limitation. You cannot negotiate your way to a higher amount without pledging more gold.

The LTV Cap and Why It Matters

The 75% LTV cap exists to protect lenders from gold price drops. If gold prices fall sharply after the loan is disbursed, the lender needs a cushion to recover its money by auctioning the pledged gold. During the COVID-19 period, the RBI temporarily raised the LTV limit to 90% to help borrowers access more liquidity. That relaxation has since been rolled back.

Some borrowers assume that all lenders offer the full 75%. They do not. Many banks offer 60% to 70% LTV as standard practice, reserving higher ratios for customers with existing banking relationships. It pays to compare, because a 10-percentage-point difference in LTV on ₹5,00,000 worth of gold means ₹50,000 more or less in your pocket.

How Interest Gets Calculated

Gold loan interest rates in India typically range from about 7% to 18% per annum, depending on the lender, the loan amount, and the repayment scheme you choose. The rate itself is only half the picture. What really affects your outgo is how that rate gets applied.

Most gold loans use one of two calculation methods: flat rate or reducing balance. The difference between them is substantial, and most borrowers do not ask which one applies.

Under a flat rate method, interest is calculated on the entire principal for the full loan tenure. If you borrow ₹1,00,000 at 12% flat for one year, you pay ₹12,000 in interest regardless of any partial repayments you make during the year. The effective interest rate in this case is higher than 12%, because you are paying interest on money you have already returned.

Under a reducing balance method, interest is calculated on the outstanding principal. As you repay, the base on which interest is charged shrinks. The same ₹1,00,000 at 12% reducing balance for one year, repaid in equal monthly instalments, results in total interest of roughly ₹6,600. That is nearly half the flat rate figure.

Understanding how to calculate gold loan interest requires you to first confirm which method your lender uses. A loan advertised at 10% flat can be more expensive than one at 14% reducing balance, depending on the repayment structure. Always ask for the total interest amount in rupees, not just the percentage. That single number tells you more than the rate ever will.

Repayment Structures Change the Equation

Gold loans come with several repayment options, and each one alters the total cost. The most common structures are regular EMI, bullet repayment, and interest-only periodic payments with principal due at maturity.

Bullet repayment means you pay nothing during the tenure and settle everything, principal plus accumulated interest, at the end. This sounds convenient but results in the highest total interest outgo because the principal never reduces. Interest-only monthly payments are a middle ground: you keep the principal intact but prevent interest from compounding. Regular EMIs, predictably, cost the least in total interest because they chip away at the principal every month.

A borrower taking ₹2,00,000 for 12 months at 12% reducing balance through EMIs will pay significantly less total interest than someone who chooses bullet repayment at the same rate. The loan amount and rate are identical. The structure changes the math entirely.

What Borrowers Should Actually Do

Before pledging gold, weigh it yourself using a jeweller’s scale and calculate the approximate pure gold content. Check the day’s gold rate. Multiply, apply 75%, and you have a reasonable upper bound for your loan amount. Then ask every lender two questions: what is the interest calculation method, and what is the total interest payable in rupees over the full tenure? Compare those rupee figures side by side. The lowest advertised rate does not always win. The lowest total cost does.