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Free GST Calculator Online

Calculate GST inclusive and exclusive prices instantly. Easily find CGST, SGST, and IGST values for any amount with 100% accuracy.

Calculation Results

Net Amount (Taxable Value) ₹ 0.00
CGST (Half) ₹ 0.00
SGST (Half) ₹ 0.00
IGST (Full) ₹ 0.00
Total GST Amount ₹ 0.00
Total Amount (Post-GST / Invoice Value)
₹ 0.00

How to calculate GST?

Adding GST (Inclusive)

Formula to add GST to base amount:

GST Amount = (Original Cost × GST%) / 100
Net Price = Original Cost + GST Amount

Example: If a product costs ₹1,000 and GST is 18%, the GST amount is ₹180. The total price to customer is ₹1,180.

Removing GST (Exclusive)

Formula to find base amount from MRP:

GST Amount = MRP - [MRP × (100 / (100 + GST%))]
Net Price = MRP - GST Amount

Example: If a product is sold for ₹1,180 (including 18% GST), the base cost is ₹1,000 and GST is ₹180.

India's GST Tax Slabs

The Goods and Services Tax (GST) in India is divided into different tax slabs for the collection of tax:

  • 5% Slab: Essential goods, frozen vegetables, coffee, tea, spices, pizza bread, etc.
  • 12% Slab: Frozen meat products, butter, cheese, ghee, pickles, sausage, fruit juices, etc.
  • 18% Slab: Most goods and services fall here including software, hair oil, toothpaste, soaps, pasta, ice cream, etc.
  • 28% Slab: Luxury and sin goods like cars, motorcycles, aerated drinks, ACs, refrigerators, etc.

Frequently Asked Questions

What is the difference between CGST, SGST and IGST?

CGST and SGST apply on intra-state (same state) sales — each is half of the GST rate. IGST applies on inter-state sales at the full GST rate. This free GST calculator shows all three for every calculation.

Is this GST calculator free to use?

Yes. TimeGST's online GST calculator is 100% free — no signup required. Use it anytime to calculate GST inclusive and exclusive prices.

Which GST rates does this calculator support?

You can calculate GST at 0.25%, 3%, 5%, 12%, 18% and 28% — covering all major GST slabs used in India.

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