GST Calculator 2025 - Calculate Tax Instantly

Calculate GST amount, total price, and tax impact with our free online GST calculator. Supports both inclusive and exclusive GST calculations.

GST Calculator

Calculation Results

Base Amount
₹1,000
GST Amount (18%)
₹180
Total Amount
₹1,180
Calculation Formula
GST = ₹1,000 × 18% = ₹180
Sample Calculations
Mobile Phone
₹25,000 + 18% GST = ₹29,500
Medicines
₹500 + 5% GST = ₹525
Restaurant Bill
₹1,200 + 18% GST = ₹1,416
Hotel Stay
₹3,000 + 12% GST = ₹3,360
Car Purchase
₹800,000 + 28% GST = ₹1,024,000
GST Rate Guide
0%
Exempted
0%
5%
Essential Goods
5%
12%
Standard Goods
12%
18%
Most Goods
18%
28%
Luxury Items
28%
Calculator Tips
GST Exclusive: Use when you have the base price and want to add GST.
GST Inclusive: Use when you have the total price and want to find the GST component.
Quick Rates: Click on common GST rates for instant calculation.
Sample Calculations: Click on examples to load them into the calculator.
GST Calculator FAQ

How to calculate GST on a product?

For GST exclusive: GST Amount = Base Price × GST Rate ÷ 100. For GST inclusive: GST Amount = Total Price × GST Rate ÷ (100 + GST Rate).

What is the difference between inclusive and exclusive GST?

GST exclusive means GST is added to the base price. GST inclusive means GST is already included in the total price.

Which GST rate applies to my product?

Use our GST rate finder to search for your specific product or service. Rates vary from 0% to 28% based on the category.

Need to Find GST Rates?

Search our comprehensive database of GST rates for all products and services.