GST Calculator
Calculate GST amount and total price - add or remove GST from any amount.
Base Price
₹10,000
GST Amount
₹1,800
Total Price
₹11,800
How to Use This Calculator
1. Enter the amount and select whether it already includes GST or not.
2. Select the applicable GST slab rate (0%, 5%, 12%, 18% or 28%).
3. View the base price, GST amount and total price instantly.
Formula & Explanation
To add GST to a base price:
GST Amount = Base Price × (Rate / 100)
To remove GST from a GST-inclusive price:
Base Price = Total Price × 100 / (100 + Rate)
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Frequently Asked Questions
India has five main GST slabs: 0%, 5%, 12%, 18% and 28%, applied depending on the category of goods or services.
For intra-state sales, GST is split equally into CGST (Central) and SGST (State). For inter-state sales, IGST (Integrated GST) is charged, equal to the combined CGST+SGST rate.
Use the "GST Inclusive" mode - it divides the total price by (1 + GST rate/100) to find the original base price before GST.
Yes, GST rates are uniform across India for a given product or service category, unlike the older VAT system which varied by state.
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