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Large tap targets, high-contrast text, and a clean layout make CalcTap easy to use whether you're on a phone, tablet, or desktop computer.
Modern utility calculators for everyday decisions
Clean, fast calculators for work, money, time, and planning.
CalcTap brings together practical tools for shift tracking, salary checks, loan planning, savings growth, timezone conversion, date math, and health screening in one responsive, easy-to-browse interface.
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Featured tools
Most-used calculators right now
Start with the calculators visitors use most for work, finance, and everyday planning.
Work Hours Calculator
Add your start time, end time, and any break minutes to get your total worked hours — including overnight shifts.
Open calculatorEMI Calculator
Calculate your monthly EMI, total repayment, and interest for any fixed-rate loan — enter tenure in months as most Indian lenders require.
Open calculatorMortgage Calculator
Work out your monthly mortgage payment based on property price, down payment, interest rate, and loan term — plus the total interest cost over the full term.
Open calculatorInvestment Calculator
See how compound growth builds your portfolio over time from a lump sum, regular monthly contributions, or a combination of both.
Open calculatorCredit Card Calculator
Enter your card balance, interest rate, and monthly payment to see how long it takes to pay off the debt and how much interest you'll pay in total.
Open calculatorBMI Calculator
Calculate your BMI using metric or imperial measurements and see which weight category it falls into — underweight, healthy, overweight, or obese.
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Work & Pay
4 tools
Work & Pay
Tools for tracking shift hours, checking your hourly rate, and calculating overtime pay.
Work Hours Calculator
Add your start time, end time, and any break minutes to get your total worked hours — including overnight shifts.
Use this toolSalary Per Hour Calculator
Find out your effective hourly rate from any monthly or annual salary based on how many hours you actually work.
Use this toolOvertime Calculator
Enter your hourly rate, total hours worked, and overtime multiplier to see your regular pay, overtime pay, and combined total.
Use this toolHourly to Salary Calculator
See what your hourly rate converts to as a daily, weekly, monthly, and annual salary — useful for comparing contract and permanent roles.
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Time & Date
5 tools
Time & Date
Calculate ages, count days between dates, find business day totals, and convert times across time zones.
Age Calculator
Enter any birth date and get the exact age in years, months, and days — including correct leap-year handling.
Use this toolTimezone Converter
Convert a date and time between any two time zones, with automatic daylight saving adjustments for the correct date.
Use this toolDate Difference Calculator
Find out exactly how many days, weeks, months, and years lie between any two calendar dates.
Use this toolWorking Days Calculator
Count the working days between two dates, with options to exclude weekends and subtract public holidays.
Use this toolTime Duration Calculator
Enter a start and end date-time to get the exact elapsed duration in days, hours, minutes, and seconds.
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Finance & Planning
9 tools
Finance & Planning
Free tools for loans, mortgages, investments, credit card debt, savings goals, GST, percentages, and retirement planning.
Percentage Calculator
Three percentage modes in one tool: find a percentage of a number, find what percent one number is of another, or calculate the percentage change between two values.
Use this toolLoan Calculator
Enter a loan amount, interest rate, and term to see your monthly repayment, total interest, and the full cost of borrowing.
Use this toolEMI Calculator
Calculate your monthly EMI, total repayment, and interest for any fixed-rate loan — enter tenure in months as most Indian lenders require.
Use this toolGST Calculator
Add GST to a base price or remove it from an inclusive total. Supports 5%, 12%, 18%, 28%, and custom rates.
Use this toolMortgage Calculator
Work out your monthly mortgage payment based on property price, down payment, interest rate, and loan term — plus the total interest cost over the full term.
Use this toolRetirement Calculator
Project your retirement fund based on current savings, monthly contributions, expected annual return, and years until you retire.
Use this toolInvestment Calculator
See how compound growth builds your portfolio over time from a lump sum, regular monthly contributions, or a combination of both.
Use this toolCredit Card Calculator
Enter your card balance, interest rate, and monthly payment to see how long it takes to pay off the debt and how much interest you'll pay in total.
Use this toolSavings Calculator
Set a savings goal, enter your starting balance and monthly deposit, and see how your savings grow over time with interest.
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Health
1 tools
Health
A simple, easy-to-use BMI calculator for a quick health screening check.
Why visitors keep coming back
Simple tools that actually explain themselves
Every calculator on CalcTap shows you the result and helps you understand what it means.
Jump straight to what you need
Tools are grouped by type — Work & Pay, Time & Date, Finance & Planning, and Health — so you can find the right one without scrolling through a long, unsorted list.
Each tool is clearly labelled
Every calculator has a short name, a plain-language description, and a dedicated page. No guesswork about what a tool does before you open it.
No clutter, no distractions
The layout stays clean and easy to read. You can focus on the calculator you came for without fighting through the page to get to it.
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Looking for a specific calculator?
Browse the full directory or head straight to one of our most-used tools for work hours, loans, investments, and credit cards.