Practical calculators for daily life including age, date, time, grades, tips, and more. Simplify your everyday calculations with these handy, easy-to-use tools.
Calculate your exact age in years, months, days, and more.
Compare products and find the best value by calculating price per unit for any quantity.
Calculate tips and split bills with ease.
Calculate date differences, add/subtract days, and find future dates.
Calculate time differences, add/subtract time, and convert time formats.
Calculate Grade Point Average from course grades and credit hours.
Calculate final grades, test scores needed, and grade percentages.
Calculate fuel costs for trips and commutes.
Calculate work hours, overtime, and time duration between dates.
Calculate listening time and time savings at different audiobook playback speeds with real-time results.
Professional grade calculator with multiple grading systems, real-time validation, and comprehensive analysis.
Calculate tire dimensions, compare sizes, analyze speedometer differences, and find compatible tire alternatives.
Advanced child height prediction using Khamis-Roche, Mid-Parental methods with medical-grade accuracy.
Professional IPv4 subnet calculator with network analysis, CIDR notation, and comprehensive subnet information.
Calculate proper bra size from measurements.
Generate secure passwords with customizable options.
Calculate voltage drop in electrical circuits.
Calculate total work hours and wages from time entries.
Calculate fuel efficiency and gas mileage.
Professional horsepower calculator with multiple calculation methods including quarter-mile performance, dyno results, and power conversions.
Professional time duration calculator with 3 calculation modes, real-time results, and advanced features including business days analysis.
Professional electricity cost calculator with real-time pricing, energy efficiency analysis, and comprehensive utility bill calculations.
Professional eBay fee calculator with real-time calculations, profit analysis, and comprehensive breakdowns. Calculate final value fees, transaction costs, and net profits.