Free Online Calculators
by Nexlove
Age calculator, BMI, loan EMI, percentage, unit converter and more. Used by millions worldwide. Works on every device.
Free Online Calculator Tools — Fast, Accurate & Mobile-Friendly
Welcome to Nexlove’s free calculator collection. Whether you need to calculate your exact age, find your BMI, compute loan EMI payments, convert units, or find the difference between two dates — all tools are available instantly in your browser with no downloads or sign-up required.
Body Mass Index (BMI) is calculated from your weight and height. It is used globally as a health screening tool by doctors and nutritionists.
EMI (Equated Monthly Installment) is the fixed amount paid every month to repay a loan. It includes both principal and interest.
Frequently Asked Questions
Everything you need to know about our free online calculator tools
How do I calculate my exact age from date of birth?
Enter your date of birth in the “From” field on the Age Calculator tab and set the “To” date to today. Nexlove instantly shows your exact age in years, months, extra days, total days lived, total weeks, and total hours. You can also calculate your age on any future or past date.
What is a healthy BMI for adults?
A Body Mass Index (BMI) between 18.5 and 24.9 is considered normal and healthy for most adults worldwide. Below 18.5 is classified as underweight, 25 to 29.9 is overweight, and 30 or above is obese, according to World Health Organization (WHO) guidelines.
How is the monthly loan EMI calculated?
EMI stands for Equated Monthly Installment. It is calculated using the formula: EMI = P × r × (1+r)ⁿ ÷ ((1+r)ⁿ − 1), where P is the principal loan amount, r is the monthly interest rate (annual rate ÷ 12), and n is the total number of months. Our free loan calculator does all this automatically.
How do I calculate percentage of a number?
To find X% of a number Y, multiply Y by X and divide by 100. For example, 15% of 200 = 200 × 15 ÷ 100 = 30. Use our Percentage Calculator tab to compute this instantly for any numbers.
How do I convert kilometers to miles?
1 kilometer equals 0.621371 miles. Open the Unit Converter tab, select “Length” as the category, enter your value, choose Kilometer as the “From” unit and Mile as the “To” unit. The result appears instantly. You can also swap between units with the arrow button.
How do I convert Celsius to Fahrenheit?
The formula is: °F = (°C × 9/5) + 32. For example, 100°C = 212°F. Use the Unit Converter tool, select “Temperature” and choose Celsius to Fahrenheit for instant conversion.
Are all Nexlove tools completely free?
Yes. All tools on Nexlove are 100% free to use with no sign-up, no login, and no downloads required. They work perfectly on all devices including mobile phones, tablets, and computers.
How many days between two dates?
Use our Date Difference Calculator. Enter the start date in the “From” field and end date in the “To” field, then click Calculate. The tool shows the exact number of days, weeks, months, and years between the two dates.