Contact Us

Get in touch

What to write to us about

• A calculation that seems wrong or uses an incorrect assumption
• A new tool you'd like us to build for the Indian FMCG or packaged food space
• An industry figure, regulation, or standard we should update
• A bug, broken page, or display issue you encountered
• Advertising or partnership enquiries

We don't offer consulting, cannot provide tax or legal advice, and cannot respond to spam. For everything else, your message is welcome.

Reporting a calculation error

If you believe a tool is producing an incorrect result, please include the following in your message so we can reproduce and fix the issue quickly:

• The tool name and the URL where you found it
• The inputs you entered
• The output you received and what you expected instead
• The source or standard you're comparing against (if applicable)

Most corrections are applied within a few days of being reported. We credit corrections to the community that keeps FMCGMath accurate.

Suggesting a new tool

FMCGMath's roadmap is driven almost entirely by requests from Indian packaged food founders and FMCG professionals. If there's a calculation you do frequently in a spreadsheet that you wish existed as a dedicated tool — labelling cost per SKU, customs duty for imports, distributor scheme modelling, nutritional cost per serving — let us know. Include a short description of what inputs you'd provide and what output you need.

About this site

FMCGMath is a free toolkit for Indian D2C and FMCG founders. All tools are free to use, require no sign-up, and are funded by Google AdSense advertising. We cover profit margin calculation, GST invoicing, shelf-life estimation, bulk recipe scaling, co-packer cost modelling, export pricing, and FSSAI label compliance. Read more on our About page.