🧮 Free Online Calculators Tools
Free online calculators — EMI, BMI, age, percentage, GST, SIP, loan, calorie, and more. Instant results, no signup.
35 tools available · 100% free · No signup required
Age Calculator
Age Calculator finds your exact age in years, months, and days online for free. Calculate age from date of birth instantly.
EMI Calculator
EMI Calculator computes EMI for home loan, car loan, or personal loan online for free. Get a monthly instalment breakdown.
BMI Calculator
BMI Calculator computes your Body Mass Index (BMI) online for free. Find out if you are underweight, normal, or overweight.
Percentage Calculator
Percentage Calculator computes percentages online for free. Find percentage of a number, percentage change, and more.
GST Calculator
GST Calculator computes GST online for free. Find GST inclusive and exclusive amounts for Indian tax rates.
SIP Calculator
SIP Calculator computes SIP returns online for free. Find out how much your monthly SIP investment will grow.
Discount Calculator
Discount Calculator finds discounts and sale prices online for free. Calculate the final price after applying any percentage discount.
Loan Calculator
Loan Calculator computes loan EMI, total interest, and repayment schedule online for free. Plan your loan repayments.
Scientific Calculator
Scientific calculator online for free. Perform advanced math calculations with trigonometry, logarithms, and more.
Calorie Calculator
Calculate daily calorie needs online for free. Find out how many calories you need to maintain, lose, or gain weight.
BMR Calculator
BMR Calculator finds your Basal Metabolic Rate online for free. Calculate how many calories your body burns at rest each day.
Body Fat Calculator
Calculate body fat percentage online for free using US Navy method. Track your fitness progress.
CAGR Calculator
Calculate Compound Annual Growth Rate (CAGR) online for free. Measure investment returns accurately.
Fuel Cost Calculator
Calculate fuel cost for your trip online for free. Estimate petrol/diesel expenses based on distance and mileage.
Tip Calculator
Tip Calculator works out the tip amount and splits the bill per person online for free. Set any tip percentage and number of people instantly.
Date Difference Calculator
Date Difference Calculator finds the exact days, weeks, months, and years between two dates online for free. Count days between dates instantly.
Percentage Change Calculator
Percentage Change Calculator finds the percent increase or decrease between two numbers online for free. Calculate percentage change instantly.
Compound Interest Calculator
Compound Interest Calculator shows how your money grows with compounding online for free. Calculate maturity value, interest, and growth instantly.
Simple Interest Calculator
Simple Interest Calculator computes interest and total amount on a principal online for free. Calculate simple interest with the SI formula instantly.
GPA Calculator
GPA Calculator computes your grade point average from course grades and credits online for free. Calculate semester and cumulative GPA instantly.
Countdown Timer
Countdown Timer counts down to any date and time online for free. Set a target and watch the live days, hours, minutes, and seconds in your browser.
Love Calculator
Love Calculator finds a fun love compatibility percentage between two names online for free. A lighthearted name match game in your browser.
Mortgage Calculator
Mortgage Calculator computes your monthly home loan payment, total interest, and total cost online for free. Plan your mortgage instantly in your browser.
PPF Calculator
PPF Calculator estimates your Public Provident Fund maturity value and interest online for free. Plan yearly PPF investments instantly in your browser.
FD Calculator
FD Calculator estimates your fixed deposit maturity value and interest online for free. Compute FD returns with compounding instantly in your browser.
RD Calculator
RD Calculator estimates your recurring deposit maturity value and interest online for free. Compute RD returns from monthly deposits in your browser.
Retirement Calculator
Retirement Calculator estimates your retirement corpus from current savings and monthly contributions online for free. Plan your retirement in your browser.
Ideal Weight Calculator
Ideal Weight Calculator estimates healthy weight ranges from height and gender online for free. See multiple formulas at once in your browser.
Water Intake Calculator
Water Intake Calculator estimates how much water you should drink daily based on weight and activity online for free. Stay hydrated with a personal target.
Running Pace Calculator
Running Pace Calculator computes pace, speed, time, or distance for any run online for free. Plan training and race goals in your browser.
Aspect Ratio Calculator
Aspect Ratio Calculator computes the aspect ratio and scales dimensions proportionally online for free. Resize images and videos correctly in your browser.
Average Calculator
Average Calculator computes the mean, median, mode, and range of a set of numbers online for free. Analyze data statistics instantly in your browser.
Salary to Hourly Calculator
Salary to Hourly Calculator converts annual salary to hourly rate and back online for free. Compare pay rates instantly in your browser.
Days Until Date Calculator
Days Until Date Calculator counts how many days remain until a future date online for free. Countdown to events and deadlines in your browser.
Business Days Calculator
Business Days Calculator counts working days between two dates (excluding weekends) online for free. Plan deadlines in your browser.
Money and health decisions are easier when you can see the numbers. These calculators answer the questions people actually search for: what will my loan EMI be, how much will my SIP grow, what is my BMI, how much GST applies to this amount, or exactly how old someone is to the day. Each one shows the result instantly and, where it helps, explains how the figure was reached so the number is useful rather than mysterious.
Plan before you commit
Before signing a loan, run the EMI calculator with different tenures to see how the monthly payment and total interest change — a longer tenure lowers the EMI but costs more overall. Before starting an investment, use the SIP calculator to set realistic expectations. These tools are designed to help you compare scenarios, not just produce a single number.
Estimates, not professional advice
Financial and health calculators use standard formulas and the inputs you provide. They are excellent for planning and comparison, but they cannot account for every personal circumstance, tax rule, or medical factor. Treat the results as a well-informed estimate, and consult a qualified professional before making a major financial or health decision.