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Free academic, engineering, and financial calculation directory designed for university homework, real-estate analysis, and scientific research.

Featured Mathematical Calculators

Explore formula derivations, real-world examples, and instant numerical evaluation.

Algebra Geometry Finance Physics Statistics
Algebra

Quadratic Equation Solver

ax² + bx + c = 0

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Geometry

Pythagorean Theorem

a² + b² = c²

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Geometry

Cylinder Geometry

V = πr²h, A = 2πr(r+h)

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Geometry

Sphere Volume & Area

V = 4/3πr³, A = 4πr²

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Geometry

Heron's Formula

A = √[s(s-a)(s-b)(s-c)]

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Finance

Compound Interest

A = P(1 + r/n)^(nt)

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Finance

Loan EMI Calculator

Equated Monthly Installment

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Finance

Simple Interest

I = (P × R × T) / 100

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Finance

Percentage Change

Δ% = [(Final-Init)/|Init|]×100

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Algebra

Linear Equation & Slope

ax + by = c

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Algebra

2x2 Matrix Determinant

det(A) = ad - bc

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Physics

Ohm's Law Solver

V = I × R

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Physics

Kinetic Energy Calculator

KE = ½mv²

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Physics

Speed, Distance & Time

d = v × t

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Statistics

Standard Deviation & Var

Sample s & s²

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Statistics

Permutations & Combinations

nPr & nCr factorials

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