GST Calculator
Calculate Goods and Services Tax (GST) instantly. Compute exclusive and inclusive GST with multiple rate options.
About GST Calculator
Our GST Calculator is a versatile online tool designed to help you quickly and accurately calculate Goods and Services Tax (GST) for any amount. Whether you're a business owner, accountant, freelancer, or consumer, this tool simplifies GST computations with support for both exclusive and inclusive GST calculations.
GST is a value-added tax levied on most goods and services sold for domestic consumption in many countries including India, Australia, Canada, New Zealand, Singapore, and others. The tax rate varies by country and product category. Our calculator supports common GST rates (3%, 5%, 10%, 12%, 15%, 18%, 20%, 21%, 25%, 28%) and also allows custom rates.
With GST Exclusive calculation, you can add GST to a net price to find the gross price. With GST Inclusive calculation, you can remove GST from a gross price to find the original net price. The tool provides instant results with detailed breakdowns.
GST Calculator
Quick GST Rate Comparison
See how different GST rates affect your amount. Enter a value to compare all rates side by side.
How to Use
Enter the Amount
Type the monetary value in the "Amount" field. This is either the net amount (before GST) for exclusive calculation, or the gross amount (including GST) for inclusive calculation. The input accepts any positive number including decimals.
Select the GST Rate
Choose a predefined GST rate from the dropdown menu, or select "Custom" to enter your own rate. Common rates include 5% (essential items in India), 10% (Australia/Canada standard), 12% and 18% (India standard rates), 20% (UK standard), and 28% (India luxury items).
Choose Calculation Type
Select "GST Exclusive" to add GST to a net price and find the gross total. Select "GST Inclusive" to remove GST from a gross price and find the original net amount. Use the "Switch Calculation Type" button to quickly toggle between the two.
View Results
Click "Calculate GST" to see the detailed results. The tool will display the gross amount, net amount, GST amount, and rate used. A summary text explains the calculation in plain language. Use the comparison table to see how different rates affect the same amount.
GST Formulas
GST Exclusive (Add GST)
GST Amount = Net Amount × (GST Rate / 100)
Gross Amount = Net Amount + GST Amount
GST Inclusive (Remove GST)
GST Amount = Gross Amount × (GST Rate / (100 + GST Rate))
Net Amount = Gross Amount - GST Amount
GST Rates Around the World
Goods and Services Tax (GST) rates vary significantly across countries. Here are some common rates:
India
0%, 3%, 5%, 12%, 18%, 28% (multiple slabs based on goods/services)
Australia
10% (standard rate)
Canada
5% federal (GST) + provincial rates vary (HST combined up to 15%)
New Zealand
15% (standard rate)
Singapore
9% (as of 2024)
United Kingdom
20% (standard VAT rate)
Frequently Asked Questions
What is GST?
GST (Goods and Services Tax) is a value-added tax levied on most goods and services sold for domestic consumption. It is a multi-stage tax collected at each point of sale in the supply chain, with the final burden falling on the end consumer. GST replaces multiple indirect taxes with a single unified tax, simplifying the taxation system.
What is the difference between GST Exclusive and GST Inclusive?
GST Exclusive means the price does not include GST. You need to add the GST amount on top of the listed price. For example, if a product is listed at $100 with 18% GST exclusive, the total price is $118. GST Inclusive means the price already includes GST. To find the original price before tax, you need to remove the GST component. For example, if a product costs $118 with 18% GST inclusive, the original price was $100.
How do I calculate GST Exclusive?
To calculate GST Exclusive (add GST to a net price): First, multiply the net amount by the GST rate and divide by 100 to get the GST amount. Then add the GST amount to the net amount to get the gross amount. For example, with a net price of $500 and 18% GST: GST Amount = $500 × 18/100 = $90. Gross Amount = $500 + $90 = $590.
How do I calculate GST Inclusive?
To calculate GST Inclusive (remove GST from a gross price): Multiply the gross amount by the GST rate, then divide by (100 + GST rate) to get the GST amount. Subtract the GST amount from the gross amount to get the net amount. For example, with a gross price of $590 and 18% GST: GST Amount = $590 × 18/(100+18) = $90. Net Amount = $590 - $90 = $500.
What is the GST rate in India?
India has a multi-tier GST structure with rates of 0%, 3%, 5%, 12%, 18%, and 28%. The 0% rate applies to essential items like fresh food. The 3% rate applies to precious metals. The 5% rate covers essential items like packaged food and transport. The 12% and 18% rates are standard rates for most goods and services. The 28% rate applies to luxury items and sin goods. Additionally, CGST and SGST split the tax equally for intra-state supplies, while IGST applies for inter-state supplies.
Can I use a custom GST rate?
Yes! Select "Custom" from the GST Rate dropdown and enter any rate you need. This is useful for countries with rates not listed in the presets, for special promotional rates, or for specific product categories with unique tax rates.
Is this GST Calculator free to use?
Absolutely! Our GST Calculator is completely free to use, with no registration or sign-up required. We believe in providing high-quality, accessible tools for businesses, professionals, and consumers who need to perform GST calculations quickly and accurately.
Is my data stored or shared?
No, we respect your privacy. All calculations are performed locally in your browser. We do not store, transmit, or share any of the data you enter. Your financial information stays on your device only.