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Solve everyday and classroom math problems including percentages, fractions, ratios, roots, geometry, and algebra basics.
Browse 25 tools curated in this category. Start with what you need, or jump straight to a specific calculator below.
Free percentage calculator for percentage of a number, percent increase, and percent decrease style math. Useful for school, finance, shopping, and everyday calculations.
Use this percent change calculator to get a fast estimate with inputs designed for US and global English-speaking users.
Use this percentage of total calculator to get a fast estimate with inputs designed for US and global English-speaking users.
Use this fraction calculator to get a fast estimate with inputs designed for US and global English-speaking users.
Use this ratio calculator to get a fast estimate with inputs designed for US and global English-speaking users.
Use this log calculator to get a fast estimate with inputs designed for US and global English-speaking users.
Use this square root calculator to get a fast estimate with inputs designed for US and global English-speaking users.
Use this exponent calculator to get a fast estimate with inputs designed for US and global English-speaking users.
Use this factorial calculator to get a fast estimate with inputs designed for US and global English-speaking users.
Use this lcm calculator to get a fast estimate with inputs designed for US and global English-speaking users.
Use this gcd calculator to get a fast estimate with inputs designed for US and global English-speaking users.
Calculate percentage increase from an old value to a new value.
Calculate percentage decrease from an old value to a new value.
Convert a ratio into a percentage using a numerator and denominator.
Convert a decimal number into a percentage.
Convert a percentage into decimal form.
Calculate the area of a circle from its radius.
Calculate the circumference of a circle from its radius.
Calculate the area of a rectangle from length and width.
Calculate the area of a triangle from base and height.
Calculate the hypotenuse using the Pythagorean theorem.
Calculate the slope between two coordinate points.
Calculate the distance between two coordinate points.
Raise a base to a chosen exponent power.
Calculate the cube root of a number.