About These Calculators

This page collects every calculator on LovePDFs into one place — everyday math tools for age, percentages, tax, loans, health, and currency, alongside a plain word counter. Each one is built to answer a single, specific question quickly: how old are you as of a given date, what's 18% GST on a price, what will your monthly EMI be, is your BMI in a healthy range, or what's an amount worth in another currency right now. None of them require an account, a download, or sending your numbers anywhere — every calculation runs directly in your browser using JavaScript, so the numbers you enter never leave your device.

Choosing the Right Calculator

Age Calculator — exact age in years, months, and days between any two dates.
Percentage Calculator — percentage of a number, what percent one number is of another, or percentage change.
GST Calculator — add or remove GST from a price, with CGST/SGST/IGST breakdowns.
Word Counter — live word, character, sentence, and paragraph counts with reading time.
Loan Calculator — EMI, total interest, and a full amortization schedule for any loan.
BMI Calculator — body mass index in metric or imperial units, with the standard health categories.
Date Calculator — days between two dates, adding/subtracting days, and weekday lookups.
Currency Converter — quick conversions between major world currencies.

Frequently Asked Questions

Are these calculators free to use?

Yes, every calculator on this page is completely free with no sign-up or usage limits.

Do I need to install anything?

No. Every calculator runs directly in your web browser — there's nothing to download or install.

Is my data private?

Yes. All calculations happen locally in your browser using JavaScript; none of your inputs are sent to a server.