GST Frequently Asked Questions
Answers to common questions about GST calculations.
What is GST?
GST is a tax on the supply of goods and services. The applicable rate depends on the product or service classification.
How do I calculate 18% GST?
Multiply the taxable amount by 18 and divide by 100. Add the result to the taxable amount.
How do I remove GST?
For a GST-inclusive amount, divide the total by 1 + the GST rate/100 to find the base amount.
What is CGST?
CGST is the central component of GST generally applicable with SGST on eligible intra-state supplies.
What is SGST?
SGST is the state component generally applicable with CGST on eligible intra-state supplies.
What is IGST?
IGST is generally charged on inter-state supplies.
Can I use this calculator on mobile?
Yes. The calculators are designed to work on mobile, tablet and desktop browsers.
Simple, fast and browser-based
Our tools are designed to provide quick calculations without requiring an account or backend. Enter your values, check the result and use the copy or print options.
Important: GST rules, rates and classifications can change. Always verify the applicable rate and compliance requirements from official sources or a qualified tax professional.