GST Calculator · 3 min read
How to use the GST calculator
Switch between exclusive and inclusive GST modes to get taxable value and tax amount.
Step-by-step
- 1
Open GST Calculator
Tools → Business → GST Calculator.
- 2
Enter amount and rate
Choose exclusive or inclusive mode.
- 3
Copy results
Use taxable value, GST, and total in your quote or invoice.
Overview
Quickly compute GST on any amount for exclusive (add tax) or inclusive (extract tax) pricing.
Avoid spreadsheet mistakes when quoting clients — run the math privately on wikawe.
Fast GST math in the browser
Avoid spreadsheet mistakes when quoting clients — run the math privately on wikawe.
Common use cases
People search for gst calculator online when they need a fast result without installing software. Quote exclusive prices Back-calculate taxable value Check invoice totals
wikawe handles these scenarios in seconds — open the tool, upload your file, and download the result. No account, no waiting in a server queue.
Why browser-only processing matters
Most online PDF websites upload your documents to their servers. That creates privacy risk for contracts, medical records, financial statements, and HR files.
wikawe runs entirely in your browser using WebAssembly and JavaScript. Your PDF never leaves your device — not during compression, merging, signing, or conversion. That makes wikawe ideal for sensitive documents and compliance-conscious teams.
Troubleshooting tips
If a file fails to process, confirm it is not corrupted and try a smaller file first. Password-protected PDFs may need to be unlocked before other operations.
For best performance, use an updated version of Chrome, Edge, or Firefox. Close unused tabs when working with large PDFs (50 MB+) so your browser has enough memory.
Pro tips
- Use 5, 12, 18, or 28% rates common in India.
- Draft full invoices in GST Invoice Generator.
Frequently asked questions
Does it split CGST/SGST?+
The calculator shows total GST. Use GST Invoice Generator for CGST/SGST/IGST splits on documents.