Quickly calculate GST amount and total for GST-exclusive or inclusive prices at 5%, 12%, 18%, 28% or custom rates.
Goods and Services Tax (GST) is a unified indirect tax applied to most goods and services in India. It replaced multiple older taxes and created a single, standardized system for billing and compliance.
A GST Calculator helps you quickly work out how much tax is involved in a price. Instead of doing manual math, you can calculate GST online in seconds and get clear numbers for the base amount, tax amount, and final total.
This Free GST Calculator is designed to calculate GST amount, add GST to price, calculate GST from total, and find GST inclusive and GST exclusive values with accuracy. It works as an easy GST calculator for everyday billing needs.
A GST Calculator is a tool that automatically computes the tax on a given amount using the Goods and Services Tax rates. It tells you how much GST is included in a price or how much GST needs to be added to a base amount.
A goods and services tax calculator removes confusion and reduces calculation errors. Instead of using formulas every time, you enter the value and get instant results.
This type of GST and tax calculator is useful for:
A calculate GST calculator saves time and ensures consistent results across different transactions.
The process is simple and does not require any prior tax knowledge.
Step 1: Enter the amount
Type the price or total value into the input box.
Step 2: Choose GST type
Select whether the amount is:
• Inclusive GST (GST already included)
• Exclusive GST (GST to be added)
Step 3: Select GST rate
Choose one of the following:
• 5%
• 12%
• 18%
• 28%
• Custom rate
Step 4: Click Calculate
The tool processes your input instantly.
Step 5: Get results
You will see:
• GST Amount
• Net Price (before tax)
• Total Price (after tax)
This allows you to calculate GST amount, calculate GST inclusive, calculate GST exclusive, and find GST amount without manual formulas.
Understanding the difference between inclusive and exclusive GST is important for accurate billing.
GST Exclusive means the tax is not included in the given price. You add GST on top of the base amount.
For example:
Price = ₹1000
GST Rate = 18%
GST = ₹1000 × 18% = ₹180
Total = ₹1000 + ₹180 = ₹1180
This method is used when you want to add GST to price. It is also known as calculate excluding GST or calculate GST on amount.
GST Inclusive means the tax is already included in the total amount. You need to separate the base price and GST from the final value.
For example:
Total = ₹1180
GST Rate = 18%
Base Price = ₹1000
GST = ₹180
This method helps when you calculate GST from total or calculate GST included. It is also used to calculate GST amount from total when only the final figure is available.
This GST Calculator supports all standard GST rates used in real-world billing.
5% GST
12% GST
18% GST
28% GST
Custom GST Rate
Whether you are calculating tax for daily essentials, services, or luxury items, the calculator gst rate options cover all common scenarios. It also works as a quick gst cal for general use.
This tool is designed for anyone who needs fast and accurate GST calculations.
It also works well as an invoice GST calculator and a simple GST credit calculator reference for understanding input-output values. The interface is kept simple to make it an easy GST calculator for all users.
This makes it suitable for everyday tax work, practice, and learning. It functions as a reliable GST tax calculator and a quick gst cal for regular use.
Here are a few examples to show how GST calculations work in practice.
Example 1: Exclusive GST
Price = ₹2000
GST Rate = 18%
GST = ₹360
Total = ₹2360
This helps you find the GST and calculate GST amount when tax is added to the base price.
Example 2: Inclusive GST
Total = ₹1120
GST Rate = 12%
GST = ₹120
Base = ₹1000
This shows how to find GST amount and base price when the total already includes tax.
Example 3: Custom Rate
Price = ₹1500
GST Rate = 7%
GST = ₹105
Total = ₹1605
This demonstrates how to calculate GST amount using a custom rate when standard slabs do not apply.
GST calculations are one part of handling prices, taxes, and business numbers. In real situations, people often need to combine tax calculations with other types of basic financial checks.
For example, when setting prices or running offers, a Free Discount Calculator can help you understand how much a price drops after applying a percentage discount.
When you are running ads or tracking marketing performance, a Free ROAS Calculator helps measure how much revenue you earn for every rupee spent on advertising.
Using these tools together makes it easier to handle pricing, tax, and performance decisions with clear numbers instead of guesswork.
Use our Free GST Calculator to calculate GST instantly — Inclusive or Exclusive, any rate, any amount.
If the total includes GST, divide the amount by (1 + GST rate/100). This gives the base price. The difference is the GST amount.
Yes. It is a free GST calculator with no registration required and no limits on use.
Yes, it supports all standard GST rates in India.
Yes. The calculator allows you to enter any percentage if your rate does not match the standard slabs.
Yes. All calculations happen locally on your device.
Inclusive GST means tax is already part of the total price. Exclusive GST means tax is added on top of the base price.
Yes. It works as an invoice GST calculator for both goods and services.
This tool lets you calculate GST online and acts as a simple GST and tax calculator for daily use.