GST Calculator – Instant GST Inclusive & Exclusive Calculation
The GST Calculator helps you easily calculate the Goods and Services Tax on any amount. Whether you're a business owner, accountant, or consumer, this tool lets you find the GST inclusive or exclusive amount in seconds using common tax rates like 5%, 12%, 18%, or 28%.
How to Use the GST Calculator
Select your calculation mode:
- GST Inclusive: Enter the total amount (with GST), and get the base price and tax.
- GST Exclusive: Enter the base amount (before GST), and get the tax and final price.
Choose your applicable GST rate and click calculate.
GST Calculation Formulas
GST Exclusive:
GST Amount = (Original Amount × GST%) ÷ 100 Final Price = Original Amount + GST
GST Inclusive:
GST Amount = Original Amount × GST% ÷ (100 + GST%) Base Price = Original Amount − GST
Example
GST Exclusive:
Amount = ₹1,000, GST = 18%
GST = ₹180, Final Price = ₹1,180
GST Inclusive:
Total = ₹1,180, GST = 18%
Base Price = ₹1,000, GST = ₹180
Common Use Cases
- Creating GST-compliant invoices
- Reverse-calculating GST from final price
- Preparing tax returns or reports
- Understanding product price breakdown
- Online and offline business transactions
Why Use a GST Calculator?
GST calculations can be confusing, especially with multiple tax slabs. This tool helps eliminate human error and speeds up financial tasks, whether for personal, business, or accounting use.
Frequently Asked Questions (FAQs)
What is GST?
GST stands for Goods and Services Tax, a value-added tax levied on most goods and services in many countries, including India.
How many GST rates are there?
Common GST slabs in India are 5%, 12%, 18%, and 28%. Some essential items are tax-free.
Can I use this calculator for reverse GST?
Yes, select the 'Inclusive' option to extract GST from the total price.
Is CGST/SGST included?
This tool gives total GST. For intra-state sales, divide it equally into CGST and SGST.
Can businesses use this for filing returns?
Yes, this tool simplifies calculations for invoices and reporting but always consult your CA for compliance.
Related tools: Percentage Calculator, Discount Calculator.