Math calculators

Arithmetic, algebra, geometry and trigonometry solved step by step.

• Percentage calculator% of, % ratio and % change.
• Proportion calculator (rule of three)Direct and inverse proportions.
• LCM and GCF calculatorLCM, GCF and prime factors.
• Quadratic equation solverRoots of ax² + bx + c = 0.
• Right triangle calculatorPythagoras, angles and area.
• Area and volume calculator2D shapes and 3D solids.