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GST Calculator

Calculate GST amount instantly for any product or service

GST Rate Table

GST Rate Description Category
0% Essential items (Food grains, milk, etc.) Essential
5% Common goods (Sugar, tea, spices, etc.) Standard
12% Processed food, electronics, etc. Standard
18% Most goods and services Standard
28% Luxury items, automobiles, etc. Luxury

GST Formula

Exclusive of GST

GST Amount = (Amount × GST Rate) / 100

Total Amount = Amount + GST Amount

Example: ₹1,000 × 18% = ₹180 GST

Total = ₹1,000 + ₹180 = ₹1,180

Inclusive of GST

GST Amount = (Amount × GST Rate) / (100 + GST Rate)

Base Amount = Amount - GST Amount

Example: ₹1,180 × 18% / 118% = ₹180 GST

Base = ₹1,180 - ₹180 = ₹1,000

GST Calculation Examples

Product Purchase

Buying a product worth ₹1,000 with 18% GST

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₹1,000 · 18% GST · exclusive

Service Bill

Professional service charge of ₹5,000 with 18% GST

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₹5,000 · 18% GST · exclusive

Restaurant Bill

Restaurant bill of ₹2,500 including 5% GST

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₹2,500 · 5% GST · inclusive

Luxury Item

Luxury item worth ₹50,000 with 28% GST

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₹50,000 · 28% GST · exclusive

Frequently Asked Questions