Calculators
Calculate payments, grades, measurements and everyday math.
Calculators
Showing 81–100 of 320 tools
Ellipse Area Calculator
Ellipse area = π × semi-axis a × semi-axis b.
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Ellipse Perimeter Calculator
Estimate ellipse perimeter with Ramanujan’s second approximation.
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Ellipsoid Volume Calculator
Find ellipsoid volume as 4πabc/3.
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Energy Converter
Convert a quantity using the listed fixed unit factors.
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Entropy Converter
Convert entropy between the listed units.
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Equivalent Radiation Dose Converter
Convert equivalent radiation dose between the listed units.
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Escape Velocity Calculator
Escape speed = √(2GM/r).
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Expected Value Calculator
Calculate the probability-weighted expected value.
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Exponent Calculator
Raise a real base to the supplied exponent.
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Exponential Distribution CDF Calculator
Calculate exponential probability P(X ≤ x) = 1 − exp(−λx).
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Exponential Distribution PDF Calculator
Evaluate exponential density λ exp(−λx).
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Factorial Calculator
Calculate the exact factorial of a nonnegative integer.
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Fibonacci Calculator
Find an exact Fibonacci number at a chosen index.
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Force Calculator
Net force in newtons = mass × acceleration.
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Force Converter
Convert a quantity using the listed fixed unit factors.
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Fraction Calculator
Add, subtract, multiply or divide two fractions.
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Fraction Simplifier
Simplify signed integer fractions exactly and see the greatest common divisor and mixed-number form.
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Fraction To Decimal Converter
Convert a fraction to a decimal value.
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Free Fall Time Calculator
Time to fall from rest = √(2 × height / gravity).
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Frequency Converter
Convert a quantity using the listed fixed unit factors.
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