DevHive

GST Calculator

Calculate GST for Indian tax slabs

$
Tax Breakdown
Original Amount$1,000
Tax Part 1 (5%)$50
Tax Part 2 (5%)$50
Total Tax (10%)$100
Total Amount (incl. tax)$1,100

How to Use GST Calculator

  1. 1

    Enter the original price of the item.

  2. 2

    Select the applicable GST rate.

  3. 3

    The tool calculates the GST amount and the total price including tax.

  4. 4

    Copy the values you need for your invoice or records.

About GST Calculator

Calculate GST amount and final price. Add or remove GST from any amount. Supports 5%, 12%, 18%, 28% slabs.

Best Use Cases

  • •Calculating the GST-inclusive price for an invoice line item
  • •Finding the pre-tax price from a GST-inclusive amount
  • •Splitting GST into CGST and SGST for intra-state billing
  • •Verifying the tax amount on a vendor invoice before payment
  • •Comparing prices across different GST slab rates

Examples

Add GST to price

Enter 1000 as the amount, select 18% slab. Result: GST is 180, total is 1180.

Remove GST

Enter 1180 as GST-inclusive amount, select 18%. Result: base price is 1000, GST is 180.

Compare slabs

Enter the same amount and switch between 5%, 12%, 18%, 28% to compare tax impact.

Common Mistakes to Avoid

  • !Selecting the wrong GST slab rate for the product category
  • !Confusing GST-inclusive and GST-exclusive when entering amounts
  • !Forgetting to split into CGST/SGST for intra-state transactions

Limitations

  • –Supports standard Indian GST slabs only, not custom rates
  • –Does not determine which slab applies to a specific product
  • –Cannot generate a GST-compliant invoice on its own

Disclaimer

This tool is for informational and educational purposes only. Results are estimates and should not be treated as financial, tax, legal, or investment advice. Always consult a qualified professional before making financial decisions.

Frequently Asked Questions

How to calculate GST?

Add GST: Amount × (1 + rate/100). Remove GST: Amount / (1 + rate/100). Our calculator handles both.

What are the GST slabs in India?

GST has 4 main slabs: 5% (essential goods), 12% (processed food), 18% (standard), 28% (luxury/sin goods).

What is CGST and SGST?

For intra-state sales, GST is split equally into CGST (Central) and SGST (State). For inter-state, it's IGST.