Make better decisions with clean, accurate calculators

Loan / Mortgage Calculator

Payment, total interest, and amortization table.

ROI & Payback Calculator

Return on investment, net profit, and payback period.

BMI Calculator

Body Mass Index with healthy range interpretation.

Students: Math Helper

Evaluate expressions, solve equations, factors, fractions & derivatives.

Basic Calculator

Quick arithmetic with keyboard support.

Unit Converter

Length, weight and temperature conversions.

Students: Grade & GPA Calculator

Weighted grades for primary/secondary and GPA (4.0/5.0) for university.