Use OkayGST’s free GST calculator to calculate GST online in India instantly. This easy GST calculator helps you find inclusive, exclusive, and reverse GST amounts with accurate CGST, SGST, and IGST calculations — no manual math required.
Enter the base amount of goods or services to calculate GST online.
Choose the applicable GST rate in India (CGST, SGST, or IGST).
Select inclusive or exclusive GST to get instant and accurate results.
Current GST slabs in India applicable to goods and services
Essential goods and services exempt from GST in India
Low-rate GST slab for daily-use goods and services
Standard GST rate applied to most goods and services
Highest GST slab for luxury and sin goods in India
In India, the Goods and Services Tax (GST) system consists of four main types based on the nature of transactions and the location of buyers and sellers. Understanding the different types of GST in India helps in accurate GST calculation, correct invoicing, GST compliance, and proper tax filing.
CGST is levied by the Central Government on intra-state supplies of goods and services. When a sale occurs within the same state, CGST is charged along with SGST. The CGST amount collected goes to the Central Government of India.
SGST is imposed by the State Government on intra-state sales of goods and services. It is collected together with CGST and forms a major part of state-level GST revenue.
IGST applies to inter-state transactions, including imports and exports. It is levied by the Central Government to ensure seamless GST collection and avoid tax cascading between states.
UTGST is applicable in Union Territories without a legislature. It is charged along with CGST and works similarly to SGST for UT-level GST collection.
In exclusive GST calculation, GST is added separately to the base price of goods or services. This method is commonly used for GST invoicing and business billing in India.
In inclusive GST calculation, GST is already included in the final price. Our inclusive GST calculator helps extract the GST amount accurately.
GST is calculated by applying the applicable GST rate to the taxable value of goods or services. An online GST calculator automatically computes the GST amount and total price.
An online GST calculator is a free tool used to calculate GST amounts instantly based on GST rates in India, including CGST, SGST, and IGST.
Inclusive GST means the GST amount is already included in the final price. An inclusive GST calculator helps extract the GST portion from the total amount.
Exclusive GST means the GST amount is added separately to the base price of goods or services. This method is commonly used for GST billing and invoicing.
A reverse GST calculator is used to calculate the original taxable amount when the final price is GST-inclusive. It helps businesses accurately determine the GST component.
This GST calculator supports all major GST rates in India, including 0%, 5%, 12%, 18%, and 28%, applicable to goods and services.
Yes, this Indian GST calculator supports CGST, SGST, and IGST calculations based on whether the transaction is intra-state or inter-state.
Yes, this is a 100% free GST calculator with no signup or login required. You can calculate GST online anytime without limitations.
This GST calculator is ideal for small businesses, freelancers, e-commerce sellers, accountants, and GST professionals in India.
Yes, the calculator uses standard GST formulas and current GST rates in India, making it accurate for business calculations, invoicing, and GST compliance.