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 calculation, invoicing, and compliance.
CGST is levied by the Central Government on intra-state supplies. When a sale occurs within the same state, CGST is charged along with SGST.
SGST is imposed by the State Government on intra-state sales. It is collected together with CGST and forms a major part of state-level revenue.
IGST applies to inter-state transactions, including imports and exports. Levied by the Central Government to ensure seamless collection.
Applicable in Union Territories without a legislature. Charged along with CGST and works similarly to SGST.
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.