Starlight Tools directory

Algebra & Equation Calculators

8 free, browser-based tools. No account required.

Free to use
Runs in your browser
No account required

Solve equations, fractions, ratios, powers, logarithms, and number-form problems with step-by-step browser-based algebra tools. Start with the Quadratic Equation Calculator, Fraction Calculator, or Proportion Calculator.

$Quadratic equation calculator solving ax squared plus bx plus c equals zero with steps$

Quadratic Equation Calculator

Find exact and decimal roots, the discriminant, a graph, and steps using multiple solution methods. v1.0

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$Ratio calculator solving and scaling proportional values$

Ratio Calculator

Simplify, scale, compare, divide totals, and solve missing values in two- or three-part ratios. v1.0

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Fraction Calculator

Add, subtract, multiply, and divide fractions and mixed numbers with simplification and worked steps. v1.0

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$Comparing fractions calculator showing greater than less than and equal results$

Comparing Fractions Calculator

Compare and order fractions, mixed numbers, decimals, or whole numbers with exact steps and visual bars. v1.0

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Proportion Calculator

Solve a missing value or verify four values in an equality of ratios with exact steps. v1.0

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Exponent Calculator

Calculate powers or solve for the base or exponent, including negative, decimal, and fractional exponents. v1.0

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Logarithm Calculator

Compute logarithms and antilogarithms using natural, common, binary, or arbitrary bases. v1.0

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Scientific Notation Converter

Convert between decimal, scientific, engineering, and E notation while preserving significant figures. v1.0

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About These Algebra Calculators

These tools cover foundational arithmetic and algebraic operations, equation solving, ratios, fractions, powers, and logarithms. Each calculator is designed for quick checks, learning, and step-by-step verification.