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Access powerful calculators for finance, health, math and everyday calculations. Get instant, accurate results with our easy-to-use tools.
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Browse our collection organized by your needs
Every calculator on Calcful is a free tool that runs entirely in your browser, so nothing you type is uploaded or stored. Each one shows the formula and the working behind the result, which means you can sanity-check the number against your own calculations. Start with the category that matches your task, or search the complete list below. Every page also explains which assumptions a tool is making, so you always know what a figure does and does not include.
Finance & Investment
Mortgage, loans, ROI, and more
Health & Fitness
BMI, calories, body fat, and more
Everyday & Utility
Age, date, time, units, and more
Math & Academic
GPA, fractions, quadratic, and more
Featured Calculators
Quick access to our most popular tools
Mortgage Calculator
Loans & Payments
Try Calculator →Loan Calculator
Loans & Payments
Try Calculator →EMI Calculator
Loans & Payments
Try Calculator →Compound Interest Calculator
Investments & Growth
Try Calculator →ROI Calculator
Investments & Growth
Try Calculator →Discount Calculator
Investments & Growth
Try Calculator →Percentage Calculator
Investments & Growth
Try Calculator →Percentage Change Calculator
Investments & Growth
Try Calculator →Tip Calculator
Investments & Growth
Try Calculator →Currency Converter
Investments & Growth
Try Calculator →BMI Calculator
Body Composition
Try Calculator →BMR Calculator
Body Composition
Try Calculator →Calorie Calculator
Body Composition
Try Calculator →Body Fat Calculator
Body Composition
Try Calculator →Age Calculator
General Tools
Try Calculator →Countdown Calculator
General Tools
Try Calculator →Date Calculator
Date & Time Tools
Try Calculator →Time Calculator
Date & Time Tools
Try Calculator →Temperature Converter
Conversion Tools
Try Calculator →Unit Converter
Conversion Tools
Try Calculator →Simple Calculator
Basic Math Tools
Try Calculator →Average Calculator
Basic Math Tools
Try Calculator →Exponent Calculator
Basic Math Tools
Try Calculator →Root Calculator
Basic Math Tools
Try Calculator →Fraction Calculator
Basic Math Tools
Try Calculator →LCM GCD Calculator
Advanced Math Tools
Try Calculator →Statistics Calculator
Advanced Math Tools
Try Calculator →Proportion Calculator
Basic Math Tools
Try Calculator →Permutation Combination Calculator
Advanced Math Tools
Try Calculator →Scientific Notation Calculator
Advanced Math Tools
Try Calculator →Significant Figures Calculator
Advanced Math Tools
Try Calculator →Quadratic Equation Calculator
Advanced Math Tools
Try Calculator →Speed Distance Time Calculator
Physics & Technical Tools
Try Calculator →GPA Calculator
Advanced Math Tools
Try Calculator →TI-84 Calculator
Advanced Math Tools
Try Calculator →Why Choose Calcful?
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