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Get in Touch
Email us directly at hello@calzhub.com. Please include the calculator name and a description of the issue so we can respond quickly.
Bug reports
Wrong calculation result, broken input, display issues. Include the calculator name and the values you entered.
Outdated rates
Tax slabs, GST rates, interest rates that need updating. Include a link to the official source.
New calculator requests
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General feedback
Suggestions for improving existing calculators, UX feedback, or anything else on your mind.
About CalzHub
CalzHub is a free calculator platform built for Indian users — covering income tax, EMI, SIP, GST, BMI, salary breakdowns, creator income estimates, and more. All calculators are updated for FY 2024-25.
Privacy
We do not collect personal information beyond what you enter into our calculators, and we do not store calculation inputs on our servers. Read our Privacy Policy for full details.