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Fraction Calculator
Convert a fraction to decimal and percentage form.
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Calculators
Browse practical calculators and utilities by topic. Each tool is designed to solve a specific question, with clear inputs and readable results.
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Ratio Calculator
Simplify a two-part ratio and show its decimal comparison.
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Standard Deviation Calculator
Measure the spread of four data points around their mean.
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Median Calculator
Find the median of five values to summarize a data set.
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Weighted Average Calculator
Compute an average where each value has a different weight.
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Average Calculator
Calculate the arithmetic mean of four values.
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Test Score Calculator
Calculate a percentage score from correct answers or points earned.
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Final Exam Grade Needed
Estimate the final exam score needed to reach a target overall grade.
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Weighted Grade Calculator
Combine two grade categories using their course weights.
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Grade Calculator
Convert earned points into a percentage score.
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