GST Calculator
Add or remove GST from an amount.
Calculate GST amount from a base price, or work backward to find the base price from a GST-inclusive total — useful for pricing products, checking invoices, or quick tax calculations.
Free ToolNo Signup RequiredSecure & PrivateWorks on All Devices
₹11,800
total amount
Base amount₹10,000
GST (18%)₹1,800
Total₹11,800
Supported formats
Enter an amount and select the GST rate (5%, 12%, 18%, or 28%) and calculation direction.
Things to know
Uses standard GST slab rates — doesn't account for special category rates, exemptions, or composition scheme rules that may apply to specific goods/services or business types.
How your data is handled
Calculation happens entirely in your browser — nothing is stored or transmitted.
Frequently asked
Why FileMitra GST Calculator?
This tool runs entirely in your browser — your file is never uploaded to any server.
No watermarks on output
Fast, secure & easy to use
100% free online tool
Works on all devices
How to use
1
Upload your fileDrag and drop or choose file
2
Configure optionsChoose format and settings
3
Download resultGet your converted file instantly
Why people use this tool
🔒
Processed on your deviceThis tool runs entirely in your browser — your file is never uploaded to any server.
🆓
FreeNo signup or payment required
⚡
FastOptimized for quick results
📱
Any deviceDesktop, mobile, or tablet
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