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Free Online Calculators

CalcSuite offers a comprehensive collection of free online calculators for finance, health, math, and more.

All Tools40

GST Calculator India - Calculate Inclusive and Exclusive GST

Calculate GST on goods and services in India, split inclusive and exclusive tax, and review common GST use cases quickly.

indiaPopular

EMI Calculator India - Calculate Loan EMI and Total Interest

Calculate EMI, total interest, and total repayment for home, car, personal, and education loans with a full breakdown.

indiaPopular

SIP Calculator India - Calculate Mutual Fund SIP Returns

Estimate SIP returns, invested amount, and future value for monthly mutual fund investments over your planned tenure.

financialPopular

BMI Calculator - Check Your Body Mass Index Online

Calculate BMI from height and weight in seconds and see where you fall in common body mass index ranges.

healthPopular

Percentage Calculator - Find Percentages, Increases and Decreases

Calculate percentages, percentage change, and percentage difference fast for marks, discounts, tips, finance, and everyday math.

mathPopular

Mortgage Calculator - Estimate Monthly Home Loan Payments

Estimate mortgage payments, interest, taxes, insurance, and amortization to compare home loan costs before you buy.

financialPopular

Salary Calculator - Convert Annual, Monthly, Weekly and Hourly Pay

Convert salary across annual, monthly, biweekly, weekly, daily, and hourly pay so you can compare offers and budget faster.

financialPopular

Inflation Calculator - Measure Buying Power Over Time

See how inflation changes the value of money over time and compare past amounts with today’s purchasing power.

financialPopular

In-Hand Salary Calculator India - Convert CTC to Take-Home Pay

Convert CTC to in-hand salary and estimate monthly take-home pay after common payroll deductions in India.

indiaPopular

Income Tax Calculator India - Compare Old vs New Tax Regime

Calculate income tax in India, compare old vs new regime, and estimate deductions, cess, and total tax payable.

indiaPopular

Basic Calculator - Free Online Calculator for Everyday Math

Use a simple online calculator for quick addition, subtraction, multiplication, and division with instant results on any device.

math

Scientific Calculator - Free Online Calculator for Math and Trig

Solve trigonometry, logarithms, exponents, and advanced equations with a scientific calculator built for fast, accurate results.

math

Triangle Calculator - Find Sides, Angles, Area and Perimeter

Calculate triangle sides, angles, area, and perimeter for right, isosceles, equilateral, and scalene triangles in one place.

math

Fraction Calculator - Add, Subtract, Multiply and Divide Fractions

Work out fraction problems online, simplify answers, and calculate mixed numbers quickly with step-friendly fraction tools.

math

Loan Calculator - Calculate Monthly Payment, Interest and Total Cost

See monthly loan payments, total interest, and total repayment for personal, student, or other loans with a quick online calculator.

financial

Auto Loan Calculator - Estimate Car Payment, Interest and Taxes

Calculate your monthly car payment, total interest, sales tax, and trade-in impact before financing a new or used vehicle.

financial

Investment Calculator - Estimate Future Value and Investment Growth

Project investment growth with contributions, return rate, and compounding to see future value and long-term wealth potential.

financial

Retirement Calculator - Estimate How Much You Need to Retire

Plan retirement savings, future income needs, and monthly contributions with a calculator built for long-term retirement goals.

financial

Calorie Calculator - Estimate Daily Calories and TDEE

Find your daily calorie needs for maintenance, weight loss, or muscle gain based on activity level, age, height, and weight.

health

Body Fat Calculator - Estimate Body Fat Percentage Online

Estimate body fat percentage using proven body measurement formulas and get a quick read on body composition goals.

health

BMR Calculator - Estimate Basal Metabolic Rate Online

Calculate basal metabolic rate to estimate how many calories your body needs at rest before activity or exercise.

health

Ideal Weight Calculator - Find a Healthy Weight Range

Estimate a healthy weight range using popular medical formulas and compare results based on your height and sex.

health

Pregnancy Calculator - Estimate Due Date and Pregnancy Timeline

Calculate your due date, weeks of pregnancy, and trimester timeline from your last period or conception date.

health

Age Calculator - Calculate Exact Age Between Two Dates

Find exact age in years, months, and days from any birth date and calculate time between two dates instantly.

other

GPA Calculator - Calculate GPA, SGPA and CGPA Online

Calculate GPA, SGPA, and CGPA quickly with a flexible grade and credit calculator for school, college, and university use.

other

Password Generator - Create Strong Random Passwords Online

Generate strong random passwords with customizable length and character rules to improve account security in seconds.

other

Unit Converter - Convert Length, Weight, Temperature and More

Convert common units for length, weight, volume, temperature, speed, and area quickly with one easy online converter.

other

Random Number Generator - Generate Random Numbers Online

Generate random numbers in any range for games, raffles, classroom use, testing, and everyday picks.

other

Ovulation Calculator - Estimate Fertile Days and Ovulation

Predict your fertile window and likely ovulation date based on cycle timing to help with pregnancy planning.

health

Date Calculator - Calculate Days Between Dates Online

Count days between dates, add or subtract days, and calculate date differences for planning, deadlines, and schedules.

other

Tip Calculator - Calculate Tip, Total Bill and Split Amount

Work out tip amount, total bill, and per-person split fast for restaurants, travel, delivery, and group dining.

math

FD Calculator India - Calculate Fixed Deposit Maturity Online

Calculate FD maturity amount, interest earned, and total returns for fixed deposits with tenure, rate, and compounding.

india

RD Calculator India - Calculate Recurring Deposit Maturity

Estimate RD maturity value, interest earned, and total savings for monthly recurring deposits with quarterly compounding.

india

PPF Calculator India - Calculate PPF Returns and Maturity

Calculate PPF maturity amount, yearly contributions, and long-term tax-free growth under the Public Provident Fund.

india

Home Loan Eligibility Calculator India - Check Loan Eligibility

Estimate how much home loan you may qualify for based on income, obligations, tenure, and expected interest rate.

india

HRA Calculator India - Calculate House Rent Allowance Exemption

Calculate HRA exemption under Indian income tax rules using salary, rent paid, and metro or non-metro city details.

india

Compound Interest Calculator - Calculate Investment Growth Online

Estimate compound interest, future value, and total earnings for savings and investments with flexible contribution inputs.

financial

Simple Interest Calculator - Calculate Interest Online

Calculate simple interest, total amount, and interest earned for loans, deposits, and classroom problems in seconds.

financial

Percentage Change Calculator - Calculate Increase or Decrease

Find percentage increase or percentage decrease between two values quickly for prices, revenue, marks, and metrics.

math

Discount Calculator - Find Sale Price and Savings

Calculate discount amount, final price, and savings after sale percentage, coupon, or tax so you know the true deal.

math

Third-Party Financial Tools & Resources

Explore a curated collection of external calculators and financial resources from internet's trusted sources to help you make informed decisions.

AI IS REPLACING JOBS IN 2026

Brain Arena is Waiting

Free Online Calculators

All Tools40

GST Calculator India - Calculate Inclusive and Exclusive GST

EMI Calculator India - Calculate Loan EMI and Total Interest

SIP Calculator India - Calculate Mutual Fund SIP Returns

BMI Calculator - Check Your Body Mass Index Online

Percentage Calculator - Find Percentages, Increases and Decreases

Mortgage Calculator - Estimate Monthly Home Loan Payments

Salary Calculator - Convert Annual, Monthly, Weekly and Hourly Pay

Inflation Calculator - Measure Buying Power Over Time

In-Hand Salary Calculator India - Convert CTC to Take-Home Pay

Income Tax Calculator India - Compare Old vs New Tax Regime

Basic Calculator - Free Online Calculator for Everyday Math

Scientific Calculator - Free Online Calculator for Math and Trig

Triangle Calculator - Find Sides, Angles, Area and Perimeter

Fraction Calculator - Add, Subtract, Multiply and Divide Fractions

Loan Calculator - Calculate Monthly Payment, Interest and Total Cost

Auto Loan Calculator - Estimate Car Payment, Interest and Taxes

Investment Calculator - Estimate Future Value and Investment Growth

Retirement Calculator - Estimate How Much You Need to Retire

Calorie Calculator - Estimate Daily Calories and TDEE

Body Fat Calculator - Estimate Body Fat Percentage Online

BMR Calculator - Estimate Basal Metabolic Rate Online

Ideal Weight Calculator - Find a Healthy Weight Range

Pregnancy Calculator - Estimate Due Date and Pregnancy Timeline

Age Calculator - Calculate Exact Age Between Two Dates

GPA Calculator - Calculate GPA, SGPA and CGPA Online

Password Generator - Create Strong Random Passwords Online

Unit Converter - Convert Length, Weight, Temperature and More

Random Number Generator - Generate Random Numbers Online

Ovulation Calculator - Estimate Fertile Days and Ovulation

Date Calculator - Calculate Days Between Dates Online

Tip Calculator - Calculate Tip, Total Bill and Split Amount

FD Calculator India - Calculate Fixed Deposit Maturity Online

RD Calculator India - Calculate Recurring Deposit Maturity

PPF Calculator India - Calculate PPF Returns and Maturity

Home Loan Eligibility Calculator India - Check Loan Eligibility

HRA Calculator India - Calculate House Rent Allowance Exemption

Compound Interest Calculator - Calculate Investment Growth Online

Simple Interest Calculator - Calculate Interest Online

Percentage Change Calculator - Calculate Increase or Decrease

Discount Calculator - Find Sale Price and Savings

Third-Party Financial Tools & Resources

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