Indian GST Calculator
Calculate GST amount instantly. Enter any one amount and the other two will auto-calculate.
Enter any of the three amounts and the other two will auto-calculate.
How to use this calculator?
Select the GST rate from the given options.
If you want to calculate GST amount from the amount, then enter amount in Amount excluding GST.
If you have amount including GST then enter amount in Amount including GST and Amount excluding GST & GST amount will be auto-calculated.
If you have GST amount then enter amount in GST amount and Amount excluding GST & Amount including GST will be auto-calculated.
There is a tick on right side of Amount excluding GST, Amount including GST or GST amount. It will show you which amount is entered by you and thus used as basis for calculation.
How GST is Calculated?
GST can be calculated simply by multiplying the Taxable amount by GST rate. If CGST & SGST/UTGST is to be applied then CGST and SGST both amounts are half of the total GST amount.
GST = Taxable Amount x GST Rate
If you have the amount which is already including the GST then you can calculate the GST excluding amount by below formula:
GST excluding amount = GST including amount / (1 + GST rate/100)
For example: GST including amount is Rs. 1,180 and GST rate is 18%.
GST excluding amount = 1180 / (1 + 18/100) = 1180 / 1.18 = 1000
What are the GST rates in India?
GST rates are as under:
- 0% (necessity items like milk, wheat flour)
- 0.25% (rough diamonds)
- 3% (gold, silver etc.)
- 5%, 12%, 18%, 28%
Most of the goods fall in the category of 5%, 12% and 18%, while most of the services fall in the category of 18%. GST of 28% is applicable on some items like cement, car, tobacco. There is also a Cess which is applicable only on a handful of goods like car, tobacco, pan masala.
There are also goods/services on which GST is applicable at NIL rate or which are exempted.
Frequently asked questions
How do I calculate GST from an amount?
Multiply the taxable (GST-exclusive) amount by the GST rate. For example, on ₹1,000 at 18%, GST is 1,000 × 18% = ₹180, and the total invoice value is ₹1,180.
How do I remove GST from a GST-inclusive amount?
Divide the inclusive amount by (1 + GST rate ÷ 100). For ₹1,180 at 18%, the GST-exclusive amount is 1,180 ÷ 1.18 = ₹1,000, so the GST component is ₹180. The calculator does this reverse calculation automatically.
What is the difference between CGST, SGST and IGST?
For sales within the same state, GST is split equally into CGST and SGST. For sales between two states, the full amount is charged as IGST instead. The total GST is the same in both cases.
Is this GST calculator free to use?
Yes, it is completely free, works instantly in your browser, and needs no login or sign-up.