1 Kasu Gold in Grams - Conversion, Rate & Calculation Guide

• 1 Kasu equals approximately 0.4 grams of gold
• Kasu gold has deep historical and cultural roots in South India.
• Even today, jewellers and families in temple towns continue to use Kasu in transactions and ornaments.

Gold has always been more than just a precious metal in India—it symbolises wealth, heritage, and cultural pride. Among the many traditional units used to measure gold, Kasu holds a special place. If you’ve ever come across Kasu jewellery, coins, or rates quoted in Kasu, you may have wondered:
How much is 1 Kasu gold in grams?This guide explores the exact conversion of Kasu to grams, its historical importance, cultural connection, and modern-day relevance. We’ll also explain how to calculate Kasu gold rates and why understanding these conversions matters when buying or selling gold.

The term Kasu originates from the Tamil word Kas, meaning coin. Traditionally, Kasu referred to small gold coins used in South India. Over time, jewellers standardised Kasu weight, and today, 1 Kasu is considered equal to 0.4 grams of gold.This conversion is widely accepted across South Indian jewellery markets, particularly in temple towns and regions where cultural traditions are still strong.

Walk into almost any jewellery shop in Chennai, Kochi, or Vijayawada and ask about a coin necklace, and there’s a good chance the shopkeeper will casually mention “ten kasu” or “twenty kasu”.

So, what is Kasu gold, exactly? Kasu is a traditional gold measurement unit that’s been around for generations, used mainly across Tamil Nadu, Kerala, and Andhra Pradesh. The word itself comes from a Tamil term that roughly translates to "coin".

Long before digital scales, BIS hallmarks, or anything resembling a standardised purity certificate existed, gold was often circulated as small coins. Over time, those coins became an informal but widely trusted way to talk about gold weight, which is essentially the kasu origin story.

It’s worth noting this isn’t an officially regulated unit. There’s no government body stamping “kasu” weights the way there is for, say, kilograms. It’s a trade convention, one that works because buyers and sellers in these regions broadly agree on what it means, even if the exact number shifts slightly from shop to shop.

Even though the metric system standardised gold measurement, Kasu still has a place in certain local contexts.

Historical Use

In ancient South India, Kasu gold coins were actively traded across kingdoms, becoming a key currency unit.

Cultural Importance

Many households still treasure Kasu jewellery in grams, especially necklaces and pendants made with Kasu designs.

Localised Usage

In specific temple towns and markets, jewellers continue quoting gold in Kasu rather than grams, reflecting tradition.

1 kasu gold in grams is 0.4 grams. This is the figure most jewellers and most online sources treat as the standard, and it’s the one you should default to for everyday calculations.

You might come across slightly different numbers, somewhere in the 0.4 g to 0.5 g range, depending on which jeweller or region you’re dealing with.

So if you’re still wondering how many grams 1 kasu is after all this, just remember: 0.4 g is the safe number to lean on, with 0.5 g as the occasional regional exception. And if someone asks you directly how many grams 1 kasu is, you can confidently say 0.4 grams; just double-check locally if you’re dealing with an unfamiliar jeweller.

A quick formula to keep handy and probably the simplest version of Kasu gold conversion you’ll ever need:

Number of Kasu × 0.4 = Weight in grams

Knowing the Kasu-to-gram conversion is more than just a calculation—it ensures clarity and fairness in financial and cultural contexts.

Fair Pricing

Correct conversion ensures that buyers do not overpay when purchasing Kasu jewellery or coins.

Correct Valuation

It is crucial for gold loans, inheritance division, or resale transactions, where accuracy matters.

Consistency

By standardising the conversion, jewellers and buyers build trust and reliability in the market.

Standardising Kasu-to-grams provides a single, trusted basis for pricing and valuation across regions and jewellers. By fixing 1 Kasu to a defined gram weight, buyers and sellers can calculate value transparently, avoid disputes, and compare quotes fairly. It also simplifies documentation for invoicing, hallmark verification, and gold loan assessments by aligning traditional units with the metric system. In practice, this reduces confusion, improves consistency in temple-town markets and modern showrooms alike, and supports accurate billing that reflects purity, making charges, and taxes.

Rather than reaching for a calculator every single time, here’s a quick-reference Kasu gold weight table. Bookmark this page, or screenshot the table; it covers the most common quantities you’ll actually run into, and it’s the fastest way to go from Kasu to grams.

Note: 0.4 g per Kasu is the standard most calculations should be based on. The 0.5g column exists purely because some traditional jewellers, mostly in pockets of Kerala and Tamil Nadu, still quote the slightly higher figure. It’s not wrong, exactly; just regional. Always confirm which standard your jeweller is using before you settle on a final price, especially for larger purchases where the difference can be significant.

Once you’ve got the gram weight sorted, working out the 1-kasu gold price isn’t complicated. You don’t need an accountant or a spreadsheet; just one formula and the day’s gold rate. This is the core of any kasu gold price calculation, and once you’ve done it a couple of times, it becomes straightforward to do.

The price of 1 Kasu is 0.4 × (current gold rate per gram)

Let’s run through the calculation with two examples because numbers tend to make more sense when you see them applied.

Example 1: 22K gold: Suppose today’s 22K gold rate is ₹6,800 per gram. For 1 Kasu, that’s 0.4 × ₹6,800 = ₹2,720. Scale that up to 10 Kasu, and you’re looking at roughly ₹27,200 in pure gold value before anything else gets added.

Example 2: 24K gold: If the 24K rate happens to be ₹7,400 per gram, then 1 Kasu comes to 0.4 × ₹7,400 = ₹2,960. For 10 Kasu, that works out to around ₹29,600.

Now, here’s the part people often forget when they’re budgeting for a purchase: these numbers only reflect the raw gold value. The amount you actually pay at the billing counter will be higher, sometimes noticeably so, because two more costs get layered on top:

• Making charges, typically 8–15% of the gold value, depending on how intricate the design is and which jeweller you’re buying from. A simple coin pendant will usually sit at the lower end; an elaborate temple-style necklace will push toward the higher end.
• 3% GST is applied to the combined total of gold value plus making charges, as per current tax rules.

It genuinely helps to ask your jeweller to break the bill down line by line, showing the gold value and making charges and tax separate, rather than accepting one lump figure. A shop that’s confident in its pricing won’t hesitate to show you this breakdown. If they’re vague or reluctant, consider that a warning sign. Also, don’t forget to check for the BIS hallmark stamp on the piece itself; it’s your simplest proof that the gold has actually been tested and certified for the purity it claims. Skipping this step is a common, avoidable mistake buyers make, especially when they’re in a hurry or at an unfamiliar shop. And if you’re shopping locally, it’s also worth knowing how 1 kasu of gold, or how many grams in India, is typically calculated by your specific state’s jewellers, since regional habits can nudge the number slightly.

22K gold (91.6% purity) is, by a wide margin, the most common purity used for Kasu necklaces and coin jewellery across South India. There’s a practical reason for this: Pure 24K gold is soft, almost too soft for daily wear, so jewellers blend in a small percentage of other metals to make 22K pieces sturdier without losing too much gold content.

Formula: Weight (0.4g) × 22K gold rate per gram = base gold value.

Worked example: At a 22K rate of ₹6,800 per gram, 1 Kasu = 0.4 × ₹6,800 = ₹2,720. A 20-kasu necklace, which works out to 8 22k kasu gold grams, would carry a base gold value of roughly ₹54,400, and remember that’s before making charges and GST gets added. If you’re comparing the price of 22k kasu gold at a couple of shops, this is the baseline figure you should be matching against — anything wildly higher deserves a second look.

Price Calculation for 24K Kasu Gold

24K gold (99.9% purity) shows up far less often in finished jewellery, mostly because it’s too soft to hold up well in necklaces and bangles that get worn regularly. Where you’re more likely to encounter it is in investment-grade coins, where purity matters more than durability.

Worked example: At a 24K rate of ₹7,400 per gram, 1 Kasu = 0.4 × ₹7,400 = ₹2,960. A 5-Kasu coin set, equal to 2 grams, would be valued at roughly ₹5,920 purely in gold terms. This kind of 24K kasu gold price check is especially useful if you’re buying coins as an investment rather than for everyday jewellery.

Kasu is not just about coins—it has found a place in ornaments and fashion. Popular jewellery pieces include:

Kasu Mala (Coin Necklace)

A traditional necklace made of multiple Kasu coins, often worn during weddings and festivals.

Kasu Pendants and Earrings

Smaller ornaments crafted with Kasu motifs, blending modern fashion with cultural charm.

Temple Jewellery

Kasu continues to be a key element in temple jewellery designs, especially in South Indian classical dance costumes.

The price of Kasu gold is not fixed—it changes based on multiple factors. Understanding these helps buyers and investors make informed decisions.

Purity of Gold (22K, 24K, etc.)

The purity level of gold plays a big role in determining its value. Higher purity, such as 24K gold, increases the price of Kasu compared to 22K or 18K.

Current Gold Rate per Gram

Since 1 Kasu equals 0.4 grams, its value directly depends on the prevailing gold price per gram in the market. Daily fluctuations in gold rates impact Kasu value instantly.

Making Charges

When Kasu is crafted into jewellery, additional costs like making charges are added. Intricate designs in Kasu Malas or pendants often raise the overall price.

Cultural Premium

In regions where Kasu has cultural and traditional significance, jewellers may charge a premium. This is common for temple jewellery and heritage ornaments.

Kasu isn’t the only traditional gold unit you’ll run into if you start shopping around different regions or talking to jewellers from outside your usual circle. It can get genuinely confusing if nobody explains the basics upfront.

If you’ve ever found yourself comparing a quote from a jeweller in Kerala against one from a relative in Delhi, and the numbers looked wildly different, this is probably why: they were quoting in entirely different units. Keep this table handy if you’re shopping across regions or if you’ve inherited family jewellery that was originally described in a unit you’ve never heard of.

Thinking about pledging Kasu jewellery for a gold loan? Here’s roughly what happens once you walk in with the piece, step by step.

1. Actual weighing. The lender places the jewellery on a certified scale and notes the actual gram weight. Whatever “kasu count” you might quote out of habit gets set aside at this point; it simply isn’t part of the official process.
2. Purity testing. Most lenders work with gold between 18K and 22K. They’ll usually run a quick test, often using a karat meter or a more traditional acid test, to confirm the actual purity before assigning any value.
3. Loan-to-value calculation. Under RBI guidelines, lenders are permitted to offer up to 75% of the gold’s market value as a loan. So if your jewellery is valued at ₹1,00,000 once weighed and tested, you could potentially be eligible for a loan of up to ₹75,000.
4. Making charges don’t count. This often surprises people. The loan valuation is based strictly on the gold’s metal value; whatever you originally paid in making charges at the time of purchase simply isn’t factored into the loan amount. It’s understandably frustrating for buyers, but that’s how the system works.

Worked example: Say you bring in a 25-Kasu necklace. That’s 25 × 0.4g = 10 grams of gold. If it tests at 22K purity and the prevailing 22K rate that day is ₹6,800 per gram, the market value comes to 10 × ₹6,800 = ₹68,000. At the maximum 75% LTV, you’d be looking at a loan of roughly ₹51,000 (₹68,000 × 0.75).

If a gold loan is something you’re seriously considering, it’s worth comparing terms across a couple of lenders before committing; interest rates and exact LTV percentages aren’t identical everywhere. Institutions like Aditya Birla Capital offer gold loan products and broader financial planning tools that can help you get a rough estimate before you actually walk into a branch with your jewellery in hand.

Risk to flag: Gold loan terms, interest rates, the exact LTV percentage offered, and valuation methodology can vary between lenders and change over time. Treat any online estimate as a starting point, not a guarantee, and always confirm current terms directly with the lender.

A few habits, none of them complicated, can genuinely save you money and a fair amount of frustration, whether you’re buying for an upcoming wedding or finally selling that old coin set sitting in a locker.

1. Verify the BIS hallmark. This is your simplest, most reliable proof of purity. Don’t skip it even for something small, like a single coin pendant; the habit matters more than the size of the purchase.
2. Watch the piece being weighed on a certified scale before you agree to anything. Don’t just accept the “kasu count” the shopkeeper gives you. Ask for the actual gram reading and note it down yourself.
3. Check the current gold rate before you start negotiating. Rates move daily, sometimes more than once a day. Walking in already knowing that morning’s per-gram price puts you in a much stronger position than relying entirely on what the shop tells you.
4. Treat making charges as negotiable, because they usually are. They vary quite a bit between jewellers, even for similar designs. It’s worth getting quotes from two or three shops, especially for anything above a few grams, rather than settling on the first number you hear.

If you’re on the selling side instead, the same logic applies, just in reverse. Gold buyers will weigh and test your piece independently; they’re not going to take “twenty kasu” as gospel. Don’t walk in expecting a fixed resale figure based on what you were originally told at the time of purchase; it depends entirely on the actual weight and purity confirmed on the day you sell.

Weddings are probably the single biggest occasion when Kasu jewellery is bought in bulk: necklaces, matching earrings, bangles, and occasionally an entire coin set, either passed down or purchased fresh for the occasion. If you’re in this situation, it genuinely helps to total up the Kasu count across every piece first, convert that combined number to grams, and then apply the price formula once for the whole set, rather than doing it piece by piece at the counter, where it’s all too simple to lose track.

For example, say you’re buying a necklace at 30 Kasu, earrings at 15 Kasu, and a matching bracelet at 15 Kasu. That’s 60 Kasu total, which converts to 24 grams (60 × 0.4). At a 22K rate of ₹6,800 per gram, your base gold value comes to roughly ₹1,63,200, and that’s before making charges and GST get layered on top. Doing this sum at home, with a calculator and a cup of tea, gives you a realistic number to walk in with. It’s a lot easier to negotiate confidently when you already know roughly what you should be paying, instead of working it out under pressure while a salesperson hovers nearby with a tray of necklaces.

Here’s something that trips up a surprising number of buyers: Kasu is a weight unit, not a purity grade. It tells you how much gold you’re holding, not how pure that gold is. A piece described as “10 kasu” could just as easily be 22K as 24K; the kasu number on its own tells you nothing about purity. Always ask separately about the carat and check the hallmark, rather than assuming weight and purity are somehow linked. They’re not, and conflating the two is an easy way to end up disappointed later.

Kasu is more than just a unit of gold—it represents heritage, culture, and financial value. While 1 Kasu equals 0.4 grams, knowing how to calculate its worth ensures you pay the right price and preserve a tradition that has lasted centuries. Whether you’re investing in Kasu coins, buying Kasu jewellery, or valuing inherited ornaments, understanding the Kasu-to-grams conversion keeps you informed and confident.