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HQ8T

Free Calculators

Accurate calculators for everyday decisions: loan EMI, SIP and FD returns, income tax, GST, salary and HRA, age, BMI, percentages and student maths with step-by-step working.

Results update instantly as you type, with amounts shown in the Indian format (lakh and crore).

86 free tools · no sign-up · works on mobile

Guides

Frequently asked questions

Are the tax and finance calculators up to date?

They follow current Indian rules where noted on each page. Rates change, so treat results as estimates and confirm important figures with your bank or tax adviser.

Do the calculators show the working?

Many do, especially the student maths tools like fraction, LCM/HCF and quadratic equation solvers.

Is my financial data saved?

No. Calculations happen in your browser and nothing is sent to a server.

Can I use them on my phone?

Yes. Every calculator is designed for mobile first.