Free Online Calculators
A collection of useful calculators to help you with everyday calculations.
Age Calculator
Calculate exact age in years, months, and days between any two dates, plus find out days until next birthday.
Auto Loan Calculator
Calculate your car loan payments with our comprehensive auto loan calculator. Factor in down payment, trade-in value, taxes, and fees to get an accurate monthly payment estimate.
BMI Calculator
Calculate your Body Mass Index (BMI) and understand what it means for your health with our easy-to-use BMI Calculator.
BSA Calculator
Calculate Body Surface Area using various formulas including Mosteller, DuBois, and Haycock methods. Essential for medical dosing and health assessments.
Cable Size Calculator
Calculate the appropriate electrical cable size based on current, voltage, distance, and installation conditions.
Commission Calculator
Calculate sales commissions with various commission structures including flat rate, tiered, graduated, and draw against commission.
Cross Product Calculator
Calculate the cross product of two vectors in 3D space. Essential for physics, engineering, and computer graphics calculations.
Forex Compound Calculator
Calculate potential forex trading returns with compound interest, risk management, and realistic trading scenarios.
Interest Calculator
Calculate interest earnings and growth with our free interest calculator. Compare simple and compound interest, analyze different compounding frequencies, and plan your savings goals.
Julian Date Converter
Convert between Gregorian calendar dates and Julian dates. Essential for astronomy, scientific calculations, and historical date analysis.
Loan Calculator
Calculate loan payments, interest, and amortization schedules with our free loan calculator. Supports multiple loan types including amortized, deferred, and bond calculations.
Mortgage Calculator
Calculate your monthly mortgage payments with our free mortgage calculator. Estimate payments, total interest, and more.
Mulch Calculator
Calculate how much mulch you need for your landscaping project with our free mulch calculator. Get accurate measurements in cubic feet and yards.
Paint Calculator
Calculate how much paint you need for your project with this comprehensive paint calculator for walls, ceilings, and trim.
Percentage Calculator
Calculate percentages, percentage of numbers, and percentage changes with our easy-to-use online calculator.
Personal Loan Calculator
Calculate personal loan payments, APR, and early payoff scenarios with this comprehensive personal loan calculator.
PPI Calculator
Calculate Pixels Per Inch (PPI) for displays and images. Essential for designers, photographers, and anyone working with digital displays.
Roofing Calculator
Calculate the amount of roofing materials needed for your project, including squares, underlayment, and accessories. Get accurate estimates for different roof styles and materials.
Salary Calculator
Convert between different salary payment frequencies and calculate adjusted earnings accounting for holidays and vacation days. Perfect for comparing job offers, understanding your true earnings, and financial planning.
Square Footage Calculator
Calculate the square footage of rooms, houses, or any area with our free online calculator. Perfect for home improvement, real estate, construction, and flooring projects.
Time Calculator
Add, subtract, or convert time between minutes, hours, and days with this easy-to-use time calculator.
Tip Calculator
Calculate tips quickly and easily with our free tip calculator. Perfect for restaurants, services, and any tipping situation.
Torque Calculator
Calculate torque using force and distance measurements. Perfect for engineering, mechanics, and physics calculations.
VA Loan Calculator
Calculate VA home loan payments, funding fees, and total costs with this comprehensive VA loan calculator.
Weighted Average Calculator
Calculate weighted averages by assigning different weights to values. Perfect for grades, scores, or any weighted calculations.
Weighted GPA Calculator
Calculate your weighted GPA considering course credits and honors/AP/IB classes. Get accurate GPA calculations for college applications.
Why Use Our Calculators?
Easy to Use
Simple, intuitive interfaces that make calculations quick and effortless.
Free Forever
All our calculators are completely free to use with no hidden costs.
Accurate Results
Get precise calculations you can rely on for your needs.