CCalcHub
🧾

GST Calculator

India GST calculator in INR: add GST to a base price or extract GST from a GST-inclusive amount.

GST details

Adding vs Removing GST

A GST calculator is useful for invoices, quotations, e-commerce pricing, and checking how much tax is included in a final amount. Many users search for GST inclusive calculator, GST exclusive price, or how to remove 18% GST from a bill.

To add GST, multiply the base price by 1 plus the GST rate. To remove GST from an inclusive amount, divide the total by 1 plus the GST rate.

Example: 1000 plus 18% GST equals 1180. To extract GST from 1180, divide by 1.18 to get the pre-tax value of 1000.

Common Questions

How do I add GST to a base price?+

Multiply the base by (1 + GST rate). For 18%, use base x 1.18.

How do I remove GST from an inclusive amount?+

Divide the inclusive amount by (1 + GST rate) to get pre-tax value, then subtract to find GST amount.

Can I use custom GST rates?+

Yes. Besides common slabs, custom rates can be used for specific pricing scenarios.

Does this calculator handle input tax credits?+

No. It computes transaction-level GST arithmetic only, not accounting treatment.