Free Online Calculators — Mortgage, BMI, Tax & 60+ Tools
Instantly calculate mortgage payments, BMI, compound interest, salary, tax, and more. 60+ free online calculators for finance, health & math — no signup, no download, works on any device.
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Works Everywhere
Fully optimized for phones, tablets, and desktops. No app or download needed.
Results Explained
Every answer comes with a plain-English breakdown so you understand the numbers.
📐 Math & Education Calculators
Percentage Calculator
Calculate percentages, increases, and decreases
Area Calculator
Calculate area of geometric shapes
Volume Calculator
Calculate volume of 3D shapes
Triangle Calculator
Calculate triangle properties and measurements
Scientific Calculator
Advanced calculator with scientific functions
Average Calculator
Calculate mean, median, and mode of numbers
Standard Deviation Calculator
Calculate standard deviation and variance
Fraction Calculator
Add, subtract, multiply, and divide fractions
Unit Converter
Convert between different units of measurement
Binary Converter
Convert between binary, decimal, hex, and octal
GPA Calculator
Calculate your Grade Point Average
CGPA Calculator
Calculate your Cumulative Grade Point Average
Grade Calculator
Calculate grades and letter grades
🏥 Health & Fitness Calculators
Sleep Calculator
Find the best time to wake up based on sleep cycles
Macro Calculator
Calculate daily protein, carbs, and fat targets
Ovulation Calculator
Predict your most fertile days and ovulation date
Due Date Calculator
Estimate your baby's due date and pregnancy timeline
BMI Calculator
Calculate your Body Mass Index
BMR Calculator
Calculate your Basal Metabolic Rate
Daily Calorie Calculator
Calculate your daily calorie needs
Water Intake Calculator
Calculate your daily water needs
Body Fat Calculator
Calculate body fat percentage
Ideal Weight Calculator
Calculate your ideal body weight
Pregnancy Calculator
Calculate due date and pregnancy milestones
Running Pace Calculator
Calculate running pace and race times
💰 Financial Calculators
Paycheck Calculator
Estimate take-home pay after taxes and deductions
Debt-to-Income Calculator
Check your DTI ratio for mortgage and loan approval
CAGR Calculator
Calculate Compound Annual Growth Rate for investments
Net Worth Calculator
Calculate your total assets minus liabilities
Loan-to-Value Calculator
Calculate LTV ratio and check if you need PMI
Hourly to Salary Calculator
Convert hourly wage to annual, monthly, and weekly salary
Compound Interest Calculator
Calculate compound interest and investment growth
Simple Interest Calculator
Calculate simple interest on loans and investments
Mortgage Calculator
Calculate mortgage payments and amortization
EMI Calculator
Calculate Equated Monthly Installments
Car Loan Calculator
Calculate car loan payments and total cost
Investment ROI Calculator
Calculate return on investment percentage
Retirement Calculator
Plan for retirement savings and goals
Amortization Calculator
Calculate loan amortization schedules
Payment Calculator
Calculate loan payments and terms
Inflation Calculator
Calculate inflation impact on money
Tax Calculator
Estimate your tax liability
Salary After Tax Calculator
Calculate take-home salary after taxes
Sales Tax Calculator
Calculate sales tax and total prices
Discount Calculator
Calculate discounts and final prices
Tip Calculator
Calculate tips and split bills
Fuel Cost Calculator
Calculate fuel costs and trip expenses
Currency Converter
Convert between different currencies
🔧 Other Calculators
Love Calculator
Test your romantic compatibility and love match percentage
Square Footage Calculator
Calculate area of any room, floor, or space in sq ft and sq m
Age Calculator
Calculate your exact age in years, months, and days
Date Difference Calculator
Calculate days between dates or add/subtract days
Time Calculator
Add, subtract, and convert time
Hours Calculator
Calculate hours worked and time differences
QR Code Generator
Generate QR codes for URLs, text, WiFi, and more
Password Generator
Generate secure passwords with custom options
Random Number Generator
Generate random numbers and sequences
Subnet Calculator
Calculate IP subnets and network addresses
Concrete Calculator
Calculate concrete volume and materials needed
Browse All 60+ Calculators
Explore our complete collection of free online calculators designed to make your calculations quick, accurate, and hassle-free.
🌍 Calculators by Country
Calculators tailored for your local currency, taxes, and conventions.