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Gold Price Calculator: Calculate Gold Value by Weight and Purity (2026)

Calculate the value of your gold based on weight, purity (karat), and today rate — essential for buying, selling, or valuing gold in India.

7 min readUpdated March 19, 2026Calculator, Gold, Finance, India, Investment

India buys more gold than almost any country on earth — weddings, festivals, investments, or just because your grandmother said gold never loses value (she is mostly right). But when you walk into a jewellery shop, how do you know if the price they quote is fair? The making charges alone can inflate the cost by 15-25%, and most buyers never verify the base gold value.

This guide teaches you how gold pricing actually works in India: the relationship between weight, karat, and today rate, what making charges cover, how to calculate the exact gold value before walking into a shop, and when to buy gold for the best prices. Think of it as your cheat sheet for never overpaying.

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How Gold Price Is Calculated (The Formula)

Every gold purchase comes down to this formula:

Gold Value = Weight (grams) × Purity (%) × Today's Rate per gram (24K)

And the total you pay at a jewellery shop:

Total = Gold Value + Making Charges + GST (3%)

Example

You are buying a 10-gram 22K gold chain. Today's 24K gold rate is ₹7,500/gram.

Gold Value = 10 × (22/24) × 7,500 = 10 × 0.9167 × 7,500 = ₹68,750
Making charges (15%) = ₹10,312
Subtotal = ₹79,062
GST (3%) = ₹2,372
Total = ₹81,434

The gold itself costs ₹68,750 but you pay ₹81,434. That ₹12,684 difference is making charges and tax. This is why you need a calculator before shopping.

Understanding Gold Purity: 24K, 22K, 18K, 14K

KaratPurity (%)Gold ContentCommon Use
24K99.9%Pure goldGold coins, bars, investment
22K91.67%22 parts gold, 2 parts alloyIndian jewellery (most common)
18K75%18 parts gold, 6 parts alloyWestern jewellery, watches
14K58.3%14 parts gold, 10 parts alloyAffordable jewellery, rings

For Indian buyers: 22K is the standard for jewellery because pure 24K gold is too soft for daily wear — it scratches and bends easily. The 2 parts alloy (usually copper or silver) makes it durable enough for bangles, chains, and rings.

For investors: Always buy 24K gold coins or bars. You get more pure gold per gram, and resale value is straightforward — no debates about making charges or purity.

Making Charges: What They Are and How to Negotiate

Making charges are the labour cost of crafting gold into jewellery. They are the single biggest markup and also the most negotiable part of your gold purchase.

Jewellery TypeTypical Making ChargesWhy
Plain chain8-12%Machine-made, simple
Bangles10-15%Standard designs
Necklace sets15-25%Intricate design, stone setting
Temple jewellery20-35%Highly detailed handwork
Custom/Antique25-40%+Unique craftsmanship

How to negotiate

  • Ask for flat rate vs percentage: Some jewellers charge ₹400-600/gram flat rate instead of a percentage. On heavy pieces, flat rate is cheaper.
  • Compare across shops: Making charges vary wildly. Get quotes from 3 shops minimum.
  • Buy during festivals: Shops often waive or reduce making charges during Dhanteras, Akshaya Tritiya, and Diwali.
  • Plain > intricate: If investment is your goal, buy plain gold with low making charges. You lose making charges on resale.

Best Time to Buy Gold in India

Gold prices fluctuate daily, but there are seasonal patterns smart buyers exploit:

  • Akshaya Tritiya (April/May): Considered auspicious. Jewellers offer discounts on making charges (not on gold rate) to attract volume.
  • Dhanteras (October/November): Biggest gold buying day. Similar discounts to Akshaya Tritiya. Book in advance for best deals.
  • Post-wedding season (March-April): After the wedding rush, demand drops and some shops offer better rates on unsold inventory.
  • Dips in international gold prices: Gold prices in India follow international rates. When global prices drop (often during US dollar strengthening), Indian rates follow with a short delay.

Reality check: Timing the gold market is as hard as timing the stock market. If you need gold for a wedding or event, buy it when you need it. Trying to wait for the "perfect" price often backfires.

BIS Hallmark: How to Verify Gold Purity

Since June 2021, hallmarking is mandatory for gold jewellery sold in India. Here is what to look for:

  • BIS Logo: The Bureau of Indian Standards triangle mark
  • Purity grade: "916" for 22K (91.6% pure), "750" for 18K, "999" for 24K
  • HUID number: A 6-digit alphanumeric Hallmark Unique Identification number

You can verify any HUID number at the BIS website — it shows the jeweller name, purity, and hallmarking date. If a jeweller refuses to sell hallmarked gold or pushes unhallmarked pieces with excuses, walk away. It is illegal to sell unhallmarked gold jewellery above 2 grams since 2023.

Old jewellery without hallmark

If you have inherited or old gold without hallmark, you can get it tested at any BIS-recognized assaying center. The test costs ₹200-500 and gives you an accurate purity report. Essential before selling.

How to Use the Tool (Step by Step)

  1. 1

    Enter gold weight

    Weight in grams or tolas.

  2. 2

    Select purity/karat

    24K, 22K, 18K, or 14K.

  3. 3

    Enter today gold rate

    Per gram rate for 24K gold.

  4. 4

    Get gold value

    See pure gold value plus estimated total with making charges.

Frequently Asked Questions

How do I calculate gold price per gram?+

Take today 24K gold rate and multiply by the purity percentage. For 22K: rate × 0.9167. For 18K: rate × 0.75. For example, if 24K is ₹7,500/gram, then 22K is ₹7,500 × 0.9167 = ₹6,875/gram for the gold alone (before making charges).

What is the difference between 22K and 24K gold?+

24K is 99.9% pure gold — soft, bright yellow, used for coins and bars. 22K is 91.67% gold mixed with alloy metals for durability — this is what Indian jewellery is made from. You get less pure gold per gram with 22K, but it lasts longer for daily wear.

How much are making charges on gold jewellery?+

Usually 8-35% of the gold value depending on the design complexity. Simple chains are 8-12%. Intricate necklaces can be 25-35%. Always ask upfront — making charges are not standardized and vary hugely between jewellers. This is the most negotiable part of the price.

How do I know if my gold is real?+

Look for the BIS hallmark with a HUID number. You can verify the HUID at the BIS website. For old unhallmarked gold, get it tested at a BIS-recognized assaying center (₹200-500). Avoid the common "acid test" or "magnet test" — they are unreliable and can damage your jewellery.

What is the GST on gold in India?+

3% GST on gold value plus 5% GST on making charges. So on a ₹1,00,000 gold purchase with ₹15,000 making charges, you pay ₹3,000 (gold GST) + ₹750 (making GST) = ₹3,750 in taxes. Total: ₹1,18,750.

Is gold a good investment in 2026?+

Honestly, your grandmother was right — gold has historically returned 10-12% annually in India when measured in rupees (partly because the rupee depreciates against the dollar). It is a solid hedge against inflation. The catch? Gold does not generate income like dividends or rent. Most financial advisors recommend 10-15% of your portfolio in gold — enough to hedge, not so much that you miss equity growth.

What is 1 tola of gold?+

1 tola = 11.66 grams. This is the traditional Indian unit for gold measurement. When someone says "gold rate per tola," multiply the per-gram rate by 11.66. Most modern jewellers quote in grams, but tola is still common in North India.

Should I buy gold jewellery or gold coins for investment?+

For pure investment: gold coins or bars (24K, minimal making charges, easy to resell at market rate). For wearing and investment both: lightweight 22K jewellery with low making charges. Avoid heavy intricate jewellery as investment — you lose 20-35% in making charges on resale since the next buyer only pays for gold weight.

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