GST Calculator - Calculate GST Online
Calculate GST
What Is GST?
Goods and Services Tax (GST) is an indirect tax applied to many goods and services in India. The applicable rate depends on the item or service.
GST Formula
GST Amount = Price Before GST × GST Rate ÷ 100.
Final Price = Price Before GST + GST Amount.
This calculator adds GST to a pre-tax price. It does not determine the legally applicable GST rate for a product or service.
GST Calculation Example
For a taxable value of ₹1,000 at an illustrative GST rate of 18%, GST is ₹180 and the price including GST is ₹1,180. Confirm the applicable rate and tax treatment for the actual goods or service.
Inclusive and exclusive prices
- Exclusive price: calculate GST on the base value and add it.
- Inclusive price: separate the GST component from the total.
- For business or tax filings, verify the rate and rules with official guidance.
Related tools: Percentage Calculator and Discount Calculator.
GST Calculator FAQs
How is GST calculated?
GST is calculated by applying the selected GST rate to the taxable value.
How do I add GST to a price?
For an exclusive price, GST amount equals price multiplied by the rate divided by 100; add it to the price.
Can I remove GST from an inclusive price?
For a price that already includes GST, divide the inclusive amount by 1 plus the GST rate expressed as a decimal to estimate the base price.
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