Free online tools
Online Calculators
Free browser-based calculators for health, finance, math, and everyday tasks. Instant results, zero data collection.
Health & Fitness
Track body metrics, nutrition, and fitness goals.
BMI Calculator
Calculate your Body Mass Index (BMI) with our free calculator. Supports metric and imperial units. Shows BMI category and healthy weight range.
TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) based on age, gender, weight, height, and activity level. Shows BMR and calorie targets for weight goals.
Calorie Calculator
Calculate your daily calorie needs based on age, gender, weight, height, activity level, and goal. Shows recommended protein, carbs, and fat in grams.
Body Fat Calculator
Calculate your body fat percentage using the US Navy formula. Shows fat and lean mass, body fat category, and supports metric and imperial units.
Finance & Business
Plan loans, investments, savings, and taxes.
Mortgage Calculator
Calculate monthly mortgage payments, total interest, and amortization schedule. Supports down payment, custom loan terms, and interest rates.
Loan EMI Calculator
Calculate your monthly EMI for any loan — home, car, personal, or education. See total interest, payment breakdown, and amortization schedule.
Compound Interest Calculator
Calculate compound interest with optional monthly contributions. Shows final amount, total interest earned, and year-by-year growth table.
Salary Calculator
Convert your salary between hourly, weekly, bi-weekly, monthly, and annual pay periods. Customize work hours and weeks per year.
Discount Calculator
Calculate discounted price, savings amount, and final cost with tax. Supports stacked discounts and custom tax rates. Free and instant.
Tip Calculator
Calculate tip amount, total bill, and per-person share when splitting. Preset tip percentages or enter a custom amount. Free and instant.
Math & Science
Solve everyday math problems instantly.
Percentage Calculator
Calculate percentages instantly: find what percent of a number is, what percentage one number is of another, or the percentage change between two values.
Online Calculator
A fast, simple online calculator for basic arithmetic with a clean interface. Add, subtract, multiply, and divide instantly in your browser.
Date & Age
Calculate age, dates, and time differences.
Age Calculator
Calculate your exact age in years, months, days, hours, and minutes from your date of birth. Free online age calculator with next birthday countdown.
Pregnancy Due Date Calculator
Calculate your estimated due date from your last menstrual period. Shows weeks pregnant, trimester, conception date, and key pregnancy milestones.
Education
Academic tools for students.