19 free tools · No sign-up

Every calculation,done in seconds.

Accurate calculators and handy tools for money, dates, text and more – built for India, in English, ગુજરાતી and हिन्दी.

EMI Calculator GST Calculator Age Calculator SIP Calculator

Free tools: 19
Free forever: ₹0
Runs on your device: 100%

Most popular

EMI CalculatorMonthly EMI, total interest and year-wise schedule for any loanOpen SIP CalculatorEstimate mutual fund SIP returns, with an optional yearly step-upOpen GST CalculatorAdd or remove GST and see the CGST, SGST or IGST splitOpen Percentage CalculatorPercent of a number, percentage change, increase and decreaseOpen Age CalculatorExact age in years, months and days, plus next birthdayOpen Number to WordsAmounts in words for cheques – English, Gujarati and HindiOpen Password GeneratorStrong, random passwords created privately in your browserOpen QR Code GeneratorQR codes for links, UPI payments, Wi-Fi, phone and emailOpen

Browse all tools

Money & Finance6 tools

Loans, investments, tax and business maths

EMI CalculatorMonthly EMI, total interest and year-wise schedule for any loan SIP CalculatorEstimate mutual fund SIP returns, with an optional yearly step-up GST CalculatorAdd or remove GST and see the CGST, SGST or IGST split Percentage CalculatorPercent of a number, percentage change, increase and decrease Discount CalculatorFinal price after discount, savings and stacked offers Profit & Loss CalculatorProfit or loss, profit %, margin and selling price

Date, Time & Health4 tools

Age, dates, time and body measurements

Age CalculatorExact age in years, months and days, plus next birthday BMI CalculatorBody Mass Index with healthy weight range for your height Date Difference CalculatorDays, weeks, months and working days between two dates Time CalculatorAdd or subtract hours and minutes, or find time between two times

Converters3 tools

Units, currencies and numbers in words

Unit ConverterLength, weight, area, volume, temperature, speed, time and data Currency ConverterLive exchange rates for 150+ currencies, INR first Number to WordsAmounts in words for cheques – English, Gujarati and Hindi

Generators3 tools

Passwords, random numbers and QR codes

Random Number GeneratorFair random numbers in any range, unique or repeating Password GeneratorStrong, random passwords created privately in your browser QR Code GeneratorQR codes for links, UPI payments, Wi-Fi, phone and email

Text Tools3 tools

Count words and characters, change text case

Word CounterCount words, characters, sentences and reading time Character CounterCount characters for tweets, SMS, meta tags and captions Case ConverterUPPER, lower, Title, Sentence, camelCase and more

Why people use HisabTools

Accurate & transparent

Every tool shows the formula it uses and a worked example, so you can check the numbers yourself.

Private by design

Calculations run in your browser. What you type is never uploaded or stored on our servers.

Made for India

Rupee formatting, lakh and crore, GST slabs and Indian number words – in three languages.

Fast on any phone

Lightweight pages that load instantly, even on slow mobile networks, with no app to install.

Frequently asked questions

Are the tools on HisabTools free?

Yes. Every calculator and tool is completely free to use, with no sign-up and no usage limit. The site is supported by advertising.

Is my data safe?

Yes. All calculations happen inside your own browser. The numbers and text you enter are not sent to or saved on our servers. Only the currency converter fetches the latest exchange rates.

Can I use these calculators on my mobile?

Yes. Every page is designed for phones first and works on Android, iPhone, tablets, laptops and desktops.

Which languages are available?

All tools are available in English, Gujarati (ગુજરાતી) and Hindi (हिन्दी). Use the language button at the top of any page to switch.

How accurate are the results?

The tools use standard, published formulas and are tested against worked examples. Results are for information only – for loans, tax or health decisions, please confirm with your bank, a tax professional or a doctor.