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Math & Conversions Calculators

Convert units, calculate percentages, and solve mathematical problems with our comprehensive math tools.

35 Free Calculators

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⚡ Instant Results

Math & Conversions

GPA Calculator

Calculate GPA with multiple courses

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Math & Conversions

International Size Converter

Convert clothing & shoe sizes

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Math & Conversions

Percentage Calculator

Calculate percentages in multiple ways

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Math & Conversions

Unit Converter

Convert units across 8 measurement categories

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Math & Conversions

Grade Calculator

Calculate weighted grades & final exam score needed

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Math & Conversions

Kilograms to Pounds Converter

Convert kilograms to pounds instantly

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Math & Conversions

Pounds to Kilograms Converter

Convert pounds to kilograms instantly

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Math & Conversions

Centimeters to Inches Converter

Convert centimeters to inches instantly

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Math & Conversions

Inches to Centimeters Converter

Convert inches to centimeters instantly

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Math & Conversions

Celsius to Fahrenheit Converter

Convert celsius to fahrenheit instantly

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Math & Conversions

Fahrenheit to Celsius Converter

Convert fahrenheit to celsius instantly

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Math & Conversions

Miles to Kilometers Converter

Convert miles to kilometers instantly

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Math & Conversions

Kilometers to Miles Converter

Convert kilometers to miles instantly

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Math & Conversions

Discount Calculator

Calculate the sale price and how much you save for any discount percentage

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Math & Conversions

Grams to Ounces Converter

Convert grams to ounces instantly

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Math & Conversions

Ounces to Grams Converter

Convert ounces to grams instantly

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Math & Conversions

Feet to Meters Converter

Convert feet to meters instantly

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Math & Conversions

Meters to Feet Converter

Convert meters to feet instantly

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Math & Conversions

Milliliters to Cups Converter

Convert milliliters to cups instantly

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Math & Conversions

Cups to Milliliters Converter

Convert cups to milliliters instantly

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Math & Conversions

Liters to Gallons Converter

Convert liters to gallons instantly

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Math & Conversions

Gallons to Liters Converter

Convert gallons to liters instantly

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Math & Conversions

Miles per Hour to Kilometers per Hour Converter

Convert miles per hour to kilometers per hour instantly

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Math & Conversions

Kilometers per Hour to Miles per Hour Converter

Convert kilometers per hour to miles per hour instantly

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Math & Conversions

Feet to Inches Converter

Convert feet to inches instantly

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Math & Conversions

Inches to Feet Converter

Convert inches to feet instantly

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Math & Conversions

Fraction Calculator

Add, subtract, multiply, and divide fractions instantly

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Math & Conversions

Average Calculator

Calculate mean, median, and mode instantly

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Math & Conversions

Ratio Calculator

Simplify ratios, scale them up or down, solve for a missing value, and compare two ratios instantly

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Math & Conversions

Unit Price Calculator

Compare prices per ounce, pound, liter, or item to find which package size is actually the better deal

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Math & Conversions

GCF and LCM Calculator

Find the GCF and LCM of two or more numbers

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Math & Conversions

Aspect Ratio Calculator

Calculate aspect ratio from width and height, simplify to standard ratios like 16:9 or 4:3, and find matching dimensions for any target width or height

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Math & Conversions

Standard Deviation Calculator

Calculate standard deviation & variance instantly

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Math & Conversions

Z-Score Calculator

Calculate a z-score and its percentile instantly

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Math & Conversions

Confidence Interval Calculator

Calculate a confidence interval & margin of error instantly

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