Ajay Kumar Rana
Business finance

GST Calculator

GST Calculator is free to use. Enter your figures below and the result updates as you type. Use it for planning; it is an estimate, not advice.

About the GST Calculator

Add GST: total = amount × (1 + rate ÷ 100). Remove GST: base = amount × 100 ÷ (100 + rate).

Most goods and services use 5%, 12%, 18% or 28%. Check the HSN or SAC code for the correct rate.

How to use the GST Calculator

  1. Enter each figure in the boxes above, using the same currency and time units.
  2. The result updates as you type. Press Calculate to refresh it at any time.
  3. Change one figure at a time to see how much it moves the result.

Frequently asked questions

What is the GST Calculator used for?

Most goods and services use 5%, 12%, 18% or 28%. Check the HSN or SAC code for the correct rate.

How accurate is the GST Calculator?

It applies standard formulas to the figures you enter. Real results depend on actual rates, fees, taxes and timing, so treat the output as an estimate and confirm with your bank or adviser.

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