Math Calculators

Solve percentages, fractions, equations, and algebra - for students, teachers, and professionals.

Live Math Calculators

4 Tools Ready

Calculate percentages of numbers, proportions, and percentage increase or decrease instantly with visual bars and step-by-step proofs.

Add, subtract, multiply, and divide fractions with mixed numbers, common denominators, and simplified results.

Find the Least Common Multiple (LCM) and Greatest Common Divisor (GCD/HCF) for numbers with prime factor trees.

ClassWiz-style scientific calculator simulation with dual-line LCD, 50+ constants vault, equation solvers, and 1-var statistics.

These tools are currently in development and will launch in upcoming sprints.

1 in progress

Coming Soon

Solve ax² + bx + c = 0 with real and complex roots, discriminant analysis, and vertex coordinates.

Yes! Every math calculator on pdfriend provides a dynamic Explanation Card showing the exact formula and calculation steps used to reach the answer.

Never. All calculations execute 100% in your browser using pure client-side algorithms. It works instantly and completely offline once loaded.