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Education
Grades, study and learning helpers.
Density Calculator
Solve density, mass or volume using density = mass ÷ volume.
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Final Grade Calculator
Find the exam score you need to hit your target grade.
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Fraction Calculator
Add, subtract, multiply or divide fractions, simplified automatically.
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GPA Calculator
Work out your grade point average from course grades and credits.
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Final Grade Needed Calculator
Find the final-exam score you need to reach your target grade.
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Logarithm Calculator
Find a logarithm in any base, plus natural, base-10 and base-2 logs.
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Mean, Median & Mode Calculator
Find the mean, median, mode and range of a list of numbers.
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Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal.
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Percent Error Calculator
Compare a measured value with the true value to find percent error.
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Probability Calculator
Combine two independent event probabilities: and, or, neither.
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Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals back to numbers.
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Scientific Notation Converter
Convert numbers to scientific, E and engineering notation.
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Standard Deviation Calculator
Find the standard deviation, variance and mean of a data set.
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