Calculate GST in 10 seconds. No ads, no login, 100% accurate.
Get your GST calculated in under 10 seconds
Tool area is 100% ad-free for distraction-free use
Designed for one-hand operation on any device
No data stored, no login required
Choose the right tool for your needs
Simple steps to get your results
Input the base price or total amount you want to calculate GST for
Choose from standard rates: 5%, 12%, 18%, or 28%
View GST amount and total price immediately
Know which rate applies to your goods
| Rate | Common Goods & Services |
|---|---|
| 0% | Fresh milk, vegetables, fruits, bread, salt, newspapers (Exempted) |
| 5% | Packaged food, tea, coffee, medicines, economy class air tickets |
| 12% | Butter, cheese, processed food, mobile phones, business class air tickets |
| 18% | Most Common: Electronics, ACs, restaurants, IT services, banking services |
| 28% | Luxury cars, pan masala, tobacco, aerated drinks, 5-star hotels |
How the math works behind the scenes
GST Amount = (Original Cost × GST Rate) / 100
To find the total price, simply add the GST Amount to the Original Cost.
Total Price = Original Cost + GST Amount
Let’s say you are buying a smartphone worth ₹10,000 and the GST rate is 18%.
GST = ₹1,800
Understanding the two types of calculation
“Tax is Extra”
Use this when the price does not include tax yet. The final bill will be higher than the listed price.
Product Price: ₹100
+ GST (18%): ₹18
“Tax is Included”
Use this when the price already includes tax. You want to know the original price before tax.
You Pay: ₹118
- GST (18%): ₹18
Everything you need to know about GST calculation
GST (Goods and Services Tax) is an indirect tax levied on the supply of goods and services in India. It is calculated by multiplying the base amount by the applicable GST rate. For example, if the base amount is ₹10,000 and the GST rate is 18%, the GST amount would be ₹1,800, making the total ₹11,800.
Yes, our GST calculator is completely free to use. There are no hidden charges, no subscription fees, and no login required. You can use it as many times as you need without any limitations.
Our calculator uses the standard GST formula (Amount × Rate / 100) which is 100% accurate. The calculations follow the official GST rates prescribed by the Government of India: 5%, 12%, 18%, and 28%.
India has four main GST rate slabs: 5% (essential items), 12% (standard goods), 18% (most goods and services), and 28% (luxury items and sin goods). Some items like fresh food and healthcare are exempt (0% GST).
Absolutely! Our GST calculator is fully responsive and optimized for mobile devices. It features large touch-friendly buttons, a numeric keypad for easy input, and works perfectly on any smartphone or tablet.
