Math & Conversion Utilities
Complete suite of fast, client-side Math and Converter tools. Calculate percentages, statistics, ratios, fractions, unit conversions, and timestamps instantly in your browser.
100% Client-SideInstant Calculations
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Calculators
Percentage Calculator
Calculate percentages, percentage change, and proportions
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Average Calculator
Compute mean, median, mode, sum, range, min, and max
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Ratio Calculator
Solve ratio proportions (A:B = C:D)
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Fraction Calculator
Add, subtract, multiply, and divide simplified fractions
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Statistics Calculator
Compute standard deviation, variance, mean, and range
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Converters
Unit Converter
Universal unit converter hub for length, weight, time, and temp
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Length Converter
Convert meters, kilometers, feet, inches, miles, and yards
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Weight Converter
Convert kilograms, grams, pounds, ounces, and milligrams
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Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin
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Time Converter
Convert seconds, minutes, hours, days, and weeks
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Date & Time
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