Latest posts
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Cross Product Calculator
Compute the cross product of two 3D vectors, plus the dot product, magnitudes and the angle between them.
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Percentile Calculator
Find any percentile of a data set, or the percentile rank of a value, with quartiles and interquartile range.
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Significant Figures Calculator
Count significant figures in a number, round to any number of them, and apply the arithmetic rules correctly.
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Remainder Calculator
Divide two whole numbers and get the quotient, the remainder, and the modulo result for negative inputs.
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Decimal Calculator
Convert between decimals, fractions and percentages, with repeating decimals handled exactly.
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Decimal to Fraction Calculator
Convert any decimal into a fraction in lowest terms, including repeating decimals.
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Mixed Number Calculator
Do arithmetic with mixed numbers and get the answer as a mixed number, improper fraction and decimal.
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Midpoint Calculator
Find the midpoint of a line segment, or work backwards to find the missing endpoint.
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Proportion Calculator
Solve for any missing term in a proportion by cross multiplication, with the ratios and scale factor shown.
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Quadratic Formula Calculator
Apply the quadratic formula to any ax² + bx + c, with the discriminant, roots, vertex and factored form.